42,259 results on '"Battery chargers"'
Search Results
2. Three-Coil Wireless Charging System Based on S-PS Topology.
- Author
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Yan, Kai, Dang, Ruirong, and Wang, Wenzhen
- Subjects
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MUTUAL inductance , *RADIO transmitters & transmission , *WIRELESS power transmission , *REAL-time control , *BATTERY chargers - Abstract
To protect the battery, radio energy transmission charging typically uses constant current (CC) charging before switching to constant voltage (CV) charging to enhance battery durability. This paper proposes adding an auxiliary clamp coil to the original circuit topology. The IPT battery charger designed with the auxiliary clamp coil can achieve both constant current (CC) and constant voltage (CV) outputs. The mutual inductance between the auxiliary clamp coil and the primary side coil greatly influences the output performance of the entire IPT system, so the auxiliary clamp coil should not be too large. To solve this problem, an S-S-PS circuit with secondary compensation topology in the secondary coil is proposed. This circuit topology reduces the size of the auxiliary clamp coil, allowing it to be placed in an optimal position. When the constant voltage output critical position is reached, the IPT system can still automatically, continuously, and smoothly switch between CC and CV modes. Consequently, this approach avoids increased cost consumption associated with detecting CC-CV switching thresholds, adding wireless transmission communication modules, real-time control of the power transmitter, and active protection of the circuit during constant current charging. Finally, a 48 V/2.5 A prototype was built to verify that the IPT system has CC-CV conversion functionality. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
3. A low-cost and miniature aerosol charger using americium-241.
- Author
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Chen, Xiaotong, Zhou, Fei, Zhang, Qiang, Jiang, Feng, Jiang, Jingkun, and Zhang, Zhenzhong
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BATTERY chargers , *AEROSOLS , *PARTICLE size distribution , *FIRE detectors , *DEFLECTION (Mechanics) , *ION sources - Abstract
The particle number size distribution (PNSD) plays a crucial role in aerosol science and related industries. The recent surge in dense PNSD monitoring networks and measurement in harsh environments necessitates low-cost Electrical Mobility Sizers/Spectrometers (EMS). A miniature charger using the radioactive source of americium-241 charger was specifically developed for the low-cost EMS, with ion sources easily obtainable at low costs from smoke alarms. The ion concentration was over 5 × 1012 m−3. The measured charging efficiency of the charger aligns with the commonly used approximation formulae, while charge distributions deviate slightly from it. To solve this deviation issue, a reported inversion method is adopted which is based on the bipolar PNSD measurement. The practical use of the charger was theoretically explored, providing insights into the particle number concentration limits at commonly employed flow rates. This charger displays the potential for providing a cost-effective method of conditioning aerosol charging in large-scale or environmentally challenging PNSD measurements. Copyright © 2024 American Association for Aerosol Research [ABSTRACT FROM AUTHOR]
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- 2024
- Full Text
- View/download PDF
4. Predictive load‐feedforward control for DC‐link voltage suppression and dynamic improvement of battery charging and discharging converter.
- Author
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Han, Jingang, Yang, Zheng, Zhou, Xinhe, and Tang, Tianhao
- Subjects
ELECTRIC vehicles ,VOLTAGE control ,STORAGE batteries ,SIMULATION methods & models ,PREDICTION models ,ELECTRIC power conversion - Abstract
With the continuous progress of new energy technology, new energy vehicles have ushered in a stage of rapid development. As the central core of new energy vehicle, the power accumulator batteries have been attracting increasing attention. To obtain the exact electrical characteristics of the power battery, battery charging and discharging are integral component. A bidirectional grid‐connected AC/DC converter with predictive load‐feedforward compensation is presented in this article. Derive a predictive load‐feedforward model from the state space model of the rear DC/DC converter to reduce the bus voltage fluctuations caused by load variations. Firstly, the system structure for battery charging and discharging system is presented, and then the underlying principle of predictive load‐feedforward control is analyzed. Secondly, the predictive load‐feedforward model is built and discussed. Finally, build a system simulation model in MATLAB/Simulink and set up an experimental platform in the lab. Simulation results show that the predictive load‐feedforward control can reduce the bus voltage fluctuation and regulation time by about 84% and 50%, respectively, when the load power varies substantially. The findings of experimental studies also indicate that with predictive load‐feedforward control can significantly suppress bus voltage fluctuations and improve the dynamic response of the converter. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
5. Analysis of AC DC Four-Switch Boost-Buck Battery Charger Converter for EV Applications.
- Author
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Nassary, Mahmoud, Vidal-Idiarte, Enric, and Calvente, Javier
- Subjects
DYNAMIC stability ,RC circuits ,ELECTRIC vehicle batteries ,ELECTRIC vehicle charging stations ,BATTERY chargers - Abstract
This paper focuses on the analysis and control strategy of a four-switch boost-buck AC/DC converter utilized in power factor correction applications with a wide output voltage range. Given the increasing importance of electric vehicles and the need for high reliability, this study addresses the internal dynamic stability problem that can arise in the converter system. The analysis begins with a thorough examination of the system's min-phase characteristic. Despite this, internal dynamic stability issues persist, requiring a solution to ensure a higher power factor and reliability. To address this challenge, this paper proposes the utilization of a damping RC circuit instead of reducing the loop gain bandwidth. To demonstrate the internal dynamic behavior of the converter, small-signal modeling is employed. This modeling highlights the importance of mitigating internal dynamic instability to achieve the desired power factor and reliability. This study emphasizes the significance of proper analysis and control strategies for boost-buck AC/DC converters in power factor correction applications. By addressing internal dynamic stability using a damping RC circuit, the converter can achieve a higher power factor and enhanced reliability, ultimately contributing to the development of more efficient and dependable EV systems. Finally, the feasibility of the proposed analysis and control strategy is confirmed through comprehensive simulations. The simulation results validate the effectiveness of using a damping RC circuit to address the internal dynamic stability problem, leading to an improved power factor and enhanced reliability. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. Joint Deployment of Sensors and Chargers in Wireless Rechargeable Sensor Networks.
- Author
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Lian, Jie and Yao, Haiqing
- Subjects
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WIRELESS sensor networks , *SENSOR placement , *PARTICLE swarm optimization , *BATTERY chargers , *TIME complexity , *WIRELESS communications , *SENSOR networks - Abstract
As a promising technology to achieve the permanent operation of battery-powered wireless sensor devices, wireless rechargeable sensor networks (WRSNs) by radio-frequency radiation have attracted considerable attention in recent years. Determining how to save the deployment cost of WRSNs has been a hot topic. Previous scholars have mainly studied the cost of deploying chargers, thus ignoring the impact of sensor deployment on the network. Therefore, we consider the new problem of joint deployment of sensors and chargers on a two-dimensional plane, i.e., deploying the minimum number of sensors and chargers used to monitor points of interest (PoIs). Considering the interaction of deployed sensors and chargers, we divide the problem into two stages, P1 and P2. P1 addresses the sensor deployment, while P2 addresses the deployment of chargers. Both P1 and P2 have proved to be NP-hard. Meanwhile, we notice that the aggregation effect of sensors can effectively reduce the number of chargers deployed; therefore, we propose a greedy heuristic approximate solution for deploying sensors by using the aggregation effect (GHDSAE). Then, a greedy heuristic (GH) solution and a particle swarm optimization (PSO) solution are proposed for P2. The time complexity of these solutions is analyzed. Finally, extensive simulation results show that the PSO solution can always reduce the number of chargers deployed based on the GHDSAE solution sensor deployment approach. Therefore, it is more cost-effective to jointly deploy sensors and chargers by using the GHDSAE solution and the PSO solution. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
7. On‐board charger applications: A new hybrid control strategy for bidirectional CLLC resonant converter.
- Author
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Shi, Zhe, Tang, Yu, and Davari, Pooya
- Subjects
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BATTERY chargers , *CASCADE converters , *POWER density , *VOLTAGE control , *MATHEMATICAL analysis , *VOLTAGE , *PROBLEM solving - Abstract
This paper proposes a new hybrid control strategy to solve the problem of bidirectional wide voltage range regulation in CLLC converters. On the (LLC) side (G2V direction), the SSSA control method is employed for voltage boost, combined with bus voltage and burst control to achieve wide voltage regulation. On the (C) side (V2G direction), the SSSA and full/half‐bridge mode switching control are used to achieve V2G direction wide voltage regulation. This hybrid control strategy also enables high conversion efficiency in both directions without the need for additional components to reduce the converter power density. This is particularly suitable for OBC applications with strict requirements for converter volume and weight. A detailed analysis with mathematical derivation, hybrid control strategy, and converter operation principles is introduced in this paper. The following subchapters supplement the converter voltage gain, soft switching implementation conditions, and design considerations. Finally, the feasibility of the proposed control strategy was verified through an experimental prototype with an input voltage ranging from 340 to 430 V to an output voltage ranging from 225 to 450 V and bidirectional rated power of 6.6/3.3 kW. This prototype achieved a maximum conversion efficiency of 97.7% in the G2V direction and 97.1% in the V2G direction. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
8. A multi-level rectifier with voltage balancing capability for EV charging.
- Author
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Tiwari, Akhilesh Kumar, Sahu, Lalit Kumar, and Barwar, Manish Kumar
- Subjects
- *
ELECTRIC vehicle charging stations , *ELECTRIC vehicle batteries , *VOLTAGE , *LINE drivers (Integrated circuits) , *ELECTRIC automobiles , *ELECTRIC vehicles , *BATTERY chargers - Abstract
In two-stage electric vehicle (EV) battery chargers, ac-dc conversion stage contributes significantly in determining the power quality. At this stage, multilevel rectifiers (MLRs) featuring switches with lower voltage rating and better input voltage waveform quality can be adopted. However, balancing capacitor voltage in MLR is an important challenge. In this paper, a single-phase five-level power factor correction (PFC) rectifier with self-balancing capacitor is implemented for EV battery charging. The complimentary switching scheme adopted for rectifier reduces number of gate driver circuits and ensures capacitor voltage balancing. The rectifier shows added benefit of reduced voltage stress across switches and not requiring an external filter at the dc side as the load is parallelly connected with one of the capacitors. The operating principle, control strategy, modulation technique and design features of the implemented five-level rectifier is discussed in detail. The implemented control scheme enhances rectifier performance by establishing precise output voltage regulation during load fluctuations while maintaining unity power factor at input side. The five-level rectifier is validated experimentally and compared with other existing multilevel and non-multilevel rectifier topologies. The peak efficiency of 93.8% is achieved at 2 kW of output power. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. Predictive load‐feedforward control for DC‐link voltage suppression and dynamic improvement of battery charging and discharging converter
- Author
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Jingang Han, Zheng Yang, Xinhe Zhou, and Tianhao Tang
- Subjects
AC–DC power convertors ,battery chargers ,Electronics ,TK7800-8360 - Abstract
Abstract With the continuous progress of new energy technology, new energy vehicles have ushered in a stage of rapid development. As the central core of new energy vehicle, the power accumulator batteries have been attracting increasing attention. To obtain the exact electrical characteristics of the power battery, battery charging and discharging are integral component. A bidirectional grid‐connected AC/DC converter with predictive load‐feedforward compensation is presented in this article. Derive a predictive load‐feedforward model from the state space model of the rear DC/DC converter to reduce the bus voltage fluctuations caused by load variations. Firstly, the system structure for battery charging and discharging system is presented, and then the underlying principle of predictive load‐feedforward control is analyzed. Secondly, the predictive load‐feedforward model is built and discussed. Finally, build a system simulation model in MATLAB/Simulink and set up an experimental platform in the lab. Simulation results show that the predictive load‐feedforward control can reduce the bus voltage fluctuation and regulation time by about 84% and 50%, respectively, when the load power varies substantially. The findings of experimental studies also indicate that with predictive load‐feedforward control can significantly suppress bus voltage fluctuations and improve the dynamic response of the converter.
- Published
- 2024
- Full Text
- View/download PDF
10. Literature survey on light electric vehicle battery charger with high-efficiency bridgeless single-power conversion.
- Author
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Saikumar, M., Rangarajan, Shriram S., Nookala, Shruthi, Sriram, Kunda, Deepthi, Nuka Sai, Vipul, Deva, and Nishitha, Gudelli
- Subjects
- *
ELECTRIC vehicle charging stations , *ELECTRIC vehicle batteries , *ELECTRIC vehicles , *ELECTRIC lighting , *BATTERY chargers , *HYBRID electric vehicles - Abstract
Due to the high efficiency and power factor of rechargeable batteries, they require high-power-density and bridgeless single-conversion battery chargers. In this paper, we introduce a bridgeless AC-DC c0nverter that can provide high efficiency and low reverse-recovery losses. The proposed device features a series-resonance current injection system and a linear feedback algorithm to control the output power. Because of the simplicity of the circuit construction, it has a high efficiency and power factor. The suggested charger's theoretical concepts are tested in an actual setting using a 1.7 kW prototype. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
11. Innovative battery-less power house for mobile devices.
- Author
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Patil, Sarthak Shrenik, Sawant, Araya, Yarnal, Manthan, Pawar, Shivba, Bhat, Jitendra, and Bhapkar, Udaysinh
- Subjects
- *
WIRELESS power transmission , *ENERGY harvesting , *WAVE energy , *BATTERY chargers , *ELECTROMAGNETIC waves , *SURFACE charges - Abstract
Already existing, sophisticated ways of charging is the wireless charger that use inductive charging, which charges the battery of a device via a secondary source to charge that is electricity from the switch board. Despite having many advantages of wireless charging over the more convention wired way of charging, they have some limitations such as the efficiency of present wireless charging devices is about 56%. This will lead to more power drawing from the source, yet less energy reaches the primary device. Also, the distance is a big problem with these devices as they use inductive charging the magnetic field around the charging surfaces loses its strength as the distance increases. These devices are not truly wireless as they need a cord or physical connection between the charger and secondary source. All these limitations of the wireless devices raise the need of obtaining a genuinely wireless energy harvesting system, which should be as good as wired charging but without wires. We constructed an innovative device that converts ambient electromagnetic waves into electricity for mobile devices. The closer is the device to the EM source the more will be the output and accordingly the charging will be either at a slow, subside or higher rate. The key results of the device would be an energy-efficient eco-friendly harvester of energy that will convert ambient EM wave energy directly into DC, sustaining above 50% efficiency throughout. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
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12. Appendix F: Electric Vehicle Charging Infrastructure
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United States. Energy Information Administration ,United States. National Renewable Energy Laboratory ,Infrastructure (Economics) ,Electric vehicles ,Battery chargers ,Business ,Petroleum, energy and mining industries - Abstract
Data Source The U.S. Energy Information Administration (EIA) receives administrative electric vehicle (EV) charging infrastructure data from the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy Alternative [...]
- Published
- 2024
13. BATTERIES get a jolt
- Author
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Forger, Gary
- Subjects
Materials handling -- Equipment and supplies ,Battery chargers ,Advertising, marketing and public relations ,Business ,Transportation industry - Abstract
That's a good thing. Lithium-ion batteries are well past the early adopter stage as they make notable inroads on lead acid. Here's a look at the reasons why. If you [...]
- Published
- 2024
14. Evaluation of Charging Protocols for Lithium-Ion Batteries Using Battery Equivalent Circuit Model
- Author
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El Houre, Amine, Yousfi, Driss, Chaker, Mohammed, Pisello, Anna Laura, Editorial Board Member, Hawkes, Dean, Editorial Board Member, Bougdah, Hocine, Editorial Board Member, Rosso, Federica, Editorial Board Member, Abdalla, Hassan, Editorial Board Member, Boemi, Sofia-Natalia, Editorial Board Member, Mohareb, Nabil, Editorial Board Member, Mesbah Elkaffas, Saleh, Editorial Board Member, Bozonnet, Emmanuel, Editorial Board Member, Pignatta, Gloria, Editorial Board Member, Mahgoub, Yasser, Editorial Board Member, De Bonis, Luciano, Editorial Board Member, Kostopoulou, Stella, Editorial Board Member, Pradhan, Biswajeet, Editorial Board Member, Abdul Mannan, Md., Editorial Board Member, Alalouch, Chaham, Editorial Board Member, Gawad, Iman O., Editorial Board Member, Nayyar, Anand, Editorial Board Member, Amer, Mourad, Series Editor, Bendaoud, Mohamed, editor, El Fathi, Amine, editor, Bakhsh, Farhad Ilahi, editor, and Pierluigi, Siano, editor
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- 2024
- Full Text
- View/download PDF
15. Extremum Seeking Control for the Efficiency Optimization of a Multi-stage Converter
- Author
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Zanatta, Nicola, Caldognetto, Tommaso, Biadene, Davide, Mattavelli, Paolo, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Ciofi, Carmine, editor, and Limiti, Ernesto, editor
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- 2024
- Full Text
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16. Leaf it to me.
- Author
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Barnes, Chris and Gallagher, Denis
- Subjects
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LEAF blowers , *ELECTRIC cables , *BATTERY chargers , *GARDEN tools , *HEARING protection - Abstract
This document provides information on leaf blowers and offers recommendations for the best models. It suggests considering whether a leaf blower is necessary and discusses factors to consider when choosing one, such as noise levels and the presence of plastic or litter mixed in with the leaves. The document recommends cordless models for residential gardens and provides specific recommendations, including the DeWalt 54V FlexVolt Axial Blower and the Greenworks 60V Pro Brushless Axial Blower. It also mentions lower-cost options for small yards, such as the Ozito BLV-2401 and the Aldi Ferrex cordless blower. The document includes a table comparing various leaf blowers based on their features, ratings, and warranty information. [Extracted from the article]
- Published
- 2024
17. MOPHIE JUICE PACK FOR iPHONE 15: ONE OF THE LOWEST-CAPACITY OPTIONS.
- Author
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JARY, SIMON
- Subjects
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USB technology , *PRICES , *BATTERY chargers - Abstract
The Mophie Juice Pack is a battery case for the iPhone 15 that provides backup power and protection. It has a 2,400mAh internal battery, which gives an average of 56% extra battery life. The case is made of sustainable PCR materials and offers 6 feet of drop protection. While it is more expensive than some Chinese competitors, it has a superior build and is slimmer and lighter. Overall, the Mophie Juice Pack is a great solution for those who need extra power for their iPhone 15. [Extracted from the article]
- Published
- 2024
18. A fixed‐frequency control method for wireless power transmission battery chargers using a dual‐function compensator
- Author
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Sina Bajelvand, Amir Babaki, Alireza Jafari‐Natanzi, Ali Yazdian Varjani, and Sadegh Vaez‐Zadeh
- Subjects
battery chargers ,DC–DC power convertors ,inductive power transmission ,Electronics ,TK7800-8360 - Abstract
Abstract High efficiency and unity power factor (PF) are the most important requirements of a wireless charger system simultaneous with the output voltage regulation. Achieving all above‐mentioned criteria in a wide range of the load is challenging in the system. This paper presents a novel control approach applied to series‐series wireless power transmission converter by using a dual‐function compensator to achieve unity PF and maximum efficiency during the constant power‐constant voltage (CP‐CV) charging scenarios. A semi‐active rectifier with impedance matching capability along with a switch‐controlled capacitor constitutes the dual‐function compensator on the secondary side. Meanwhile, the primary side inverter executes the CP‐CV charging scenario for the battery with various charging characteristics at a fixed‐switching frequency. Besides that, all secondary side switches experience soft switching condition throughout the battery charging. Finally, a prototype with a power of 200 W and roughly regulated efficiency of 90% is presented in order to verify the proposed control method.
- Published
- 2024
- Full Text
- View/download PDF
19. Transformerless partial power converter topology for electric vehicle fast charge
- Author
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Daniel Pesantez, Hugues Renaudineau, Sebastian Rivera, Alejandro Peralta, Abraham Marquez Alcaide, and Samir Kouro
- Subjects
battery chargers ,DC–DC power convertors ,electric vehicle charging ,Electronics ,TK7800-8360 - Abstract
Abstract Increasing the power rating of electric vehicles (EV) fast charging stations to reduce charging times is considered critical to accelerate the adoption of electric vehicles. Besides increasing the power, other drivers pushing the development of EV fast chargers include the improvement of efficiency and reliability. Partial power converters (PPC) have emerged as an interesting option for some of the power converter stages in fast charging stations due to their potential to increase efficiency and power rating. However, some PPCs operate as switched autotransformers by using high frequency (HF) isolation transformers but without providing galvanic isolation. This is a drawback due to cost, size and losses introduced by the transformer. This paper presents a transformerless DC–DC Type I step‐up PPC for a DC–DC regulation converter for EV fast charging stations. The proposed converter replaces the transformer commonly used in Type I PPC by an impedance network, resulting in a more efficient, cheaper, and less complex converter option. This concept is verified through simulations and experimentally validated with a laboratory prototype.
- Published
- 2024
- Full Text
- View/download PDF
20. Transformerless partial power converter topology for electric vehicle fast charge.
- Author
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Pesantez, Daniel, Renaudineau, Hugues, Rivera, Sebastian, Peralta, Alejandro, Marquez Alcaide, Abraham, and Kouro, Samir
- Subjects
ELECTRIC vehicles ,ELECTRIC vehicle charging stations ,GALVANIC isolation ,ELECTRIC vehicle industry ,DC-to-DC converters ,TOPOLOGY - Abstract
Increasing the power rating of electric vehicles (EV) fast charging stations to reduce charging times is considered critical to accelerate the adoption of electric vehicles. Besides increasing the power, other drivers pushing the development of EV fast chargers include the improvement of efficiency and reliability. Partial power converters (PPC) have emerged as an interesting option for some of the power converter stages in fast charging stations due to their potential to increase efficiency and power rating. However, some PPCs operate as switched autotransformers by using high frequency (HF) isolation transformers but without providing galvanic isolation. This is a drawback due to cost, size and losses introduced by the transformer. This paper presents a transformerless DC–DC Type I step‐up PPC for a DC–DC regulation converter for EV fast charging stations. The proposed converter replaces the transformer commonly used in Type I PPC by an impedance network, resulting in a more efficient, cheaper, and less complex converter option. This concept is verified through simulations and experimentally validated with a laboratory prototype. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
21. A fixed‐frequency control method for wireless power transmission battery chargers using a dual‐function compensator.
- Author
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Bajelvand, Sina, Babaki, Amir, Jafari‐Natanzi, Alireza, Yazdian Varjani, Ali, and Vaez‐Zadeh, Sadegh
- Subjects
WIRELESS power transmission ,BATTERY chargers ,AC DC transformers ,INDUCTIVE power transmission ,IMPEDANCE matching ,CASCADE converters - Abstract
High efficiency and unity power factor (PF) are the most important requirements of a wireless charger system simultaneous with the output voltage regulation. Achieving all above‐mentioned criteria in a wide range of the load is challenging in the system. This paper presents a novel control approach applied to series‐series wireless power transmission converter by using a dual‐function compensator to achieve unity PF and maximum efficiency during the constant power‐constant voltage (CP‐CV) charging scenarios. A semi‐active rectifier with impedance matching capability along with a switch‐controlled capacitor constitutes the dual‐function compensator on the secondary side. Meanwhile, the primary side inverter executes the CP‐CV charging scenario for the battery with various charging characteristics at a fixed‐switching frequency. Besides that, all secondary side switches experience soft switching condition throughout the battery charging. Finally, a prototype with a power of 200 W and roughly regulated efficiency of 90% is presented in order to verify the proposed control method. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
22. Harmonic Detection Methods and Optimization Strategies for Charger in Power Grid.
- Author
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Zhou, Zhenliu, Xu, Zhixun, and Zhang, Pizhen
- Subjects
- *
BATTERY chargers , *SERVICE life , *QUALITY of life , *BAT conservation - Abstract
The charger's operation in the power grid will cause harmonic pollution, affecting the service life of the equipment and the quality of the power grid. The harmonic characteristics and detection during the charging process are studied. The simulation model of charger is established first using MATLAB, the results of the experiment show that odd harmonics are mainly generated during charging, and the distortion rate of the current harmonics remains between 0.231 and 0.443 during the charging process. A new wavelet neural network is proposed to detect the harmonic method. Experimental results indicate that, compared with previous detection methods, this network has better detection efficiency and accuracy for harmonics. But detection result of this network is unstable and does not even converge. A new adaptive bat algorithm with improved focusing distance is presented here to optimize the wavelet neural network, which effectively solves the defect of being sensitive to the node number of hidden layer, resulting in higher detection accuracy, faster detection speed, and stable convergence. The detection error range is reduced from −0.03 to 0.02, and the number of iterations is reduced to around 1000. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
23. Single-Stage MV-Connected Charger Using an Ac/Ac Modular Multilevel Converter.
- Author
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Marca, Ygor Pereira, Roes, Maurice G. L., Wijnands, Cornelis G. E., Duarte, Jorge L., and Huisman, Henk
- Subjects
- *
AC DC transformers , *BATTERY chargers , *ELECTRIC vehicle batteries , *SQUARE waves , *ELECTRIC transformers , *ELECTRIC vehicles , *POWER density , *HYBRID electric vehicles - Abstract
Modular multilevel converters with non-sinusoidal ac voltage output can reduce cost and volume in medium-voltage-connected electric vehicle battery charging applications. The use of full-bridge submodules in such converters enables single-stage ac/ac voltage conversion, allowing a medium-voltage grid to be directly connected to a medium-frequency isolation transformer. The application of a square wave voltage at the medium-frequency transformer's single-phase port enhances the converter's efficiency and power density in comparison to a sinusoidal voltage. This paper presents the analysis and modelling of a modular multilevel converter, comparing its operation with sinusoidal and square wave output voltages. A single control scheme for both output voltage waveforms is proposed for the three-phase and single-phase ac currents, circulating currents, and the energy stored in the submodule capacitors. The control strategy of the three-phase and single-phase port currents is verified through simulation and experiments using a scaled-down prototype, thereby validating its suitability for high-power bidirectional battery chargers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
24. Performance evaluation of solar-combined boosting topology for EV battery charger using interval type-2 fuzzy controller.
- Author
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Kumar, C. Senthil, Kamaraja, A. S., Kumar, K. Karthik, and Bhuvanesh, A.
- Subjects
- *
ELECTRIC charge , *ELECTRIC vehicle charging stations , *BATTERY chargers , *ELECTRIC vehicle batteries , *STORAGE batteries , *ELECTRIC vehicles , *CLEAN energy - Abstract
This paper offers a unique and novel approach for electric vehicle battery charging by incorporating a solar PV-integrated dc to dc boost converter. Traditional power electronic converters used in such applications often face limitations including low voltage gain, low conversion efficiency, high ripple content, and inadequate controller performance. To overcome these challenges, the study introduces the Improved A-Source Boost Converter (IASBC) along with an interval type-2 fuzzy logic controller (IT2FLC) and MPPT technique for continuous switching with optimal design. The IASBC, equipped with a coupled inductor, enhances load side performance by achieving high conversion efficiency and voltage gain while minimizing the impact of network parasitic. Additionally, the proposed controller technique effectively reduces output side dc ripple content through gain parameter optimization. The system is optimized for charging a 48 V rechargeable battery within a solar photovoltaic voltage range of 25–75 V DC. Extensive simulations using MATLAB validate the efficacy of the proposed approach. The software analysis reveals an efficiency of 90.82% in the open-loop system and 98.57% in the closed-loop system, while the hardware system achieves an efficiency of approximately 98.55%. Furthermore, a 100 W experimental design is developed and compared with the simulation results, providing validation for the technical significance of the suggested converter. This novel approach not only addresses the limitations of conventional converters but also offers improved performance in terms of efficiency, voltage gain, and ripple content. The proposed system holds promise for efficient electric vehicle battery charging and can contribute to the advancement of sustainable energy solutions. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
25. A Step-by-Step Methodology for Obtaining the Reliability of Building Microgrids Using Fault TreeAnalysis.
- Author
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Patiño-Álvarez, Gustavo A., Arias-Pérez, Johan S., and Muñoz-Galeano, Nicolás
- Subjects
FAULT trees (Reliability engineering) ,MICROGRIDS ,PROBABILITY density function ,LOW voltage systems ,BATTERY chargers ,SOLAR panels ,DISTRIBUTION (Probability theory) - Abstract
This paper introduces an improved methodology designed to address a practical deficit of existing methodologies by incorporating circuit-level analysis in the assessment of building microgrid reliability. The scientific problem at hand involves devising a systematic approach that integrates circuit modeling, Probability Density Function (PDF) selection, formulation of reliability functions, and Fault Tree Analysis (FTA) tailored specifically for the distinctive features of building microgrids. This method entails analyzing inter-component relationships to gain comprehensive insights into system behavior. By harnessing the circuit models and theoretical framework proposed herein, precise estimations of microgrid failure rates can be attained. To complement this approach, we propose a thorough investigation utilizing reliability curves and importance measures, providing valuable insights into individual device failure probabilities over time. Such time-based analysis plays a crucial role in proactively identifying potential failures and facilitating efficient maintenance planning for microgrid devices. We demonstrate the application of this methodology to the University of Antioquia (UdeA) Microgrid, a low-voltage system comprising critical components such as solar panels, microinverters, inverters/chargers, batteries, and charge controllers. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
26. Primary-Side Indirect Control of the Battery Charging Current in a Wireless Power Transfer Charger Using Adaptive Hill-Climbing Control Technique.
- Author
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Lassioui, Abdellah, El Ancary, Marouane, El Idrissi, Zakariae, El Fadil, Hassan, Rachid, Kamal, and Rachid, Aziz
- Subjects
WIRELESS power transmission ,BATTERY chargers ,ADAPTIVE control systems ,DATA transmission systems ,WIRELESS communications ,ELECTRIC vehicle charging stations - Abstract
This paper addresses the control task of a wireless power transfer (WPT) charger designed for electric vehicles (EVs). The challenge is to maintain a constant battery charging current when the WPT is controlled on the ground side. Indeed, the intermittent latency involved in the wireless data communication between the ground and vehicle sides leads to system instability. To overcome this issue, a new control approach has been proposed in this paper. The proposed technique ensures indirect control of the battery charging current through control of the current on the ground side. The control technique relies on an adaptive hill-climbing algorithm in conjunction with a PI-based controller. The adaptive parameter is adjusted online, during the operation of the charger, only when a new measure of the battery charging current is received on the primary side. This makes it possible to avoid the need for real-time wireless data communication. It should be noted that this aspect is crucial in ensuring the controller's robustness and stability of the system regardless of potential delays in wireless communication and large misalignments between the coils. The validity of the proposed control technique has been confirmed through simulation. In addition, experimental validation, using a laboratory test bed, demonstrated satisfactory results. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
27. Non-Integrated and Integrated On-Board Battery Chargers (iOBCs) for Electric Vehicles (EVs): A Critical Review.
- Author
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Nasr Esfahani, Fatemeh, Darwish, Ahmed, Ma, Xiandong, and Twigg, Peter
- Subjects
- *
BATTERY chargers , *INFRASTRUCTURE (Economics) , *ELECTRIC vehicle industry , *TECHNICAL specifications , *GLOBAL warming , *ELECTRIC vehicles - Abstract
The rising Greenhouse Gas (GHG) emissions stemming from the extensive use of automobiles across the globe represent a critical environmental challenge, contributing significantly to phenomena such as global warming and the deterioration of air quality. To address these challenges, there is a critical need for research and development in electric vehicles (EVs) and their associated charging infrastructure, including off-board and on-board chargers (OBCs). This paper aims to bridge the gaps in existing review literature by offering a comprehensive review of both integrated and non-integrated OBCs for EVs, based on the authors' knowledge at the time of writing. The paper begins by outlining trends in the EV market, including voltage levels, power ratings, and relevant standards. It then provides a detailed analysis of two-level and multi-level power converter topologies, covering AC-DC power factor correction (PFC) and isolated DC-DC topologies. Subsequently, it discusses single-stage and two-stage non-integrated OBC solutions. Additionally, various categories of integrated OBCs (iOBCs) are explored, accompanied by relevant examples. The paper also includes comparison tables containing technical specifications and key characteristics for reference and analysis. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
28. Suppression of Initial Charging Torque for Electric Drive-Reconfigured On-Board Charger.
- Author
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Xiao, Yang, Wang, Kangwei, Geng, Zhi, Ni, Kai, Fan, Mingdi, and Yang, Yong
- Subjects
BATTERY chargers ,ELECTRIC torque ,ELECTRIC charge ,ELECTRIC drives ,TORQUE control ,COST functions ,MUTUAL inductance ,ELECTRIC inverters - Abstract
This paper presents a new electric drive-reconfigured on-board charger and initial electromagnetic torque suppression method. This proposed reconfigured on-board charger does not need many components added to the original electric drive system: only a connector is needed, which is easy to add. Specifically, the inverter for propulsion is reconfigured as a buck chopper and a conduction path to match the reconfigured windings. Two of the machine phase windings serve as inductors, while the third phase winding is reutilized as a common-mode inductor. In addition, the initial charging torque is generated at the outset of the charging process, which may cause an instant shock or even rotational movement. In order to prevent vehicle movement, the reason for the charging torque and suppression method were analyzed. Further, predictive control of the model based on mutual inductance analysis was adopted, where the charging torque was directly used as a control object in the cost function. Finally, experimental performances were applied to verify the proposed reconfigured on-board charger under constant current and constant voltage charging. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
29. Optimal quantum control of charging quantum batteries.
- Author
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Rodríguez, R R, Ahmadi, B, Suárez, G, Mazurek, P, Barzanjeh, S, and Horodecki, P
- Subjects
- *
HARMONIC oscillators , *ELECTRIC charge , *QUANTUM theory , *BATTERY chargers , *ELECTROMAGNETIC fields , *STORAGE batteries - Abstract
Quantum control allows us to address the problem of engineering quantum dynamics for special purposes. While recently the field of quantum batteries has attracted much attention, optimization of their charging has not benefited from the quantum control methods. Here we fill this gap by using an optimization method. We apply for the first time the convergent iterative method for the control of the population of a bipartite quantum system in two cases, starting with a qubit-qubit case. The quantum charger-battery system is considered here, where the energy is pumped into the charger by an external classical electromagnetic field. Secondly, we systematically extend our investigation to a second case involving two harmonic oscillators in the Gaussian regime, presenting an original formulation of the method. In both cases, the charger is considered to be an open dissipative system, as its interaction with the drive may require a more pronounced exposure to general interaction with environment. A key consideration in our optimization strategy is the practical concern of turning the charging external field on and off. We find that optimizing the pulse shape yields a substantial enhancement in both the power and efficiency of the charging process compared to a sinusoidal drive. The harmonic oscillator configuration of quantum batteries is particularly intriguing, as the optimal driving pulse remains effective regardless of the environmental temperature. This study introduces a novel approach to quantum battery charging optimization, opening avenues for enhanced performance in real-world applications. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
30. A New Design and Embedded Implementation of a Low‐Cost Maximum Power Point Tracking Charge Controller for Stand‐Alone Photovoltaic Systems.
- Author
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Chtita, Smail, Motahhir, Saad, and El Ghzizal, Abdelaziz
- Subjects
MAXIMUM power point trackers ,PHOTOVOLTAIC power systems ,SOLAR batteries ,DC-to-DC converters ,WEATHER ,BATTERY chargers ,ELECTROSTATIC discharges - Abstract
This article presents a low‐cost maximum power point tracking (MPPT) charge controller designed to efficiently charge solar batteries using a simple and robust MPPT method, while providing protection against over‐currents and over‐voltages. The proposed MPPT approach utilizes a modified Incremental Conductance (INC) algorithm adapted to low‐cost embedded controllers, as it avoids all the mathematical division calculations typically used in the conventional INC algorithm. It also introduces a modified step size based only on photovoltaic (PV) power change to enhance tracking accuracy and convergence speed. Furthermore, to reduce the stress and switching losses of DC–DC converter, a feedback control with two proportional and integral (PI) compensators is also used to control both the PV voltage and to protect the battery from over‐currents using PV power limitation technique. Simulation results, carried out under MATLAB/Simulink, demonstrate the good performance of the proposed control scheme regarding any variations in atmospheric conditions, both for the MPPT control and for the battery charge control. Finally, a processor‐in‐the‐loop (PIL) test using a low‐cost Arduino MKR ZERO board is also performed to verify the hardware implementation of the proposed method. PIL results are in totally accordance with MATLAB/Simulink simulation results, which further proves the effectiveness of the proposed method. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
31. The design of mobile phone battery helmet charger for online driver based on simple solar panel.
- Author
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Mokhtar, Ali, Liantara, Exzell, Almutarihan, Irsan Fahmi, and Sofi'i, Yepy Komaril
- Subjects
- *
SOLAR cell design , *SOLAR panels , *BATTERY chargers , *MOTORCYCLISTS , *POLYCRYSTALLINE silicon , *BATTERY storage plants , *CELL phones - Abstract
Transportation services combined with technological advances have contributed a lot to both motorcycle drivers and users. Helmets have become an important point for motorcycle drivers and user comfort. A helmet serves as protection from impact and the hot sun when driving. Mobile is an important aspect of online motorcycle drivers. In operation, mobile phones require a battery that functions as an energy source. Activities carried out outdoors, such as motorcycle drivers, will be hampered due to the condition of battery energy that runs out quickly with high activity and mobility. To overcome these problems, this research will design a helmet that is integrated with solar cells. Thus the cellphone battery can be charged even though the motorcycle driver is on the road. The solar cells in our design are polycrystalline silicon. From the design results, with a power of 18.5 Wh, it can charge 2 Li-Ion 3.7V storage batteries with a capacity of 2500mAh in 2 hours and 25 minutes (assuming stable sunlight, water mass 1.5). [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
32. Energy-efficient Vienna rectifier for electric vehicle battery charging stations
- Author
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Bharaneedharan B, Suresh P, Elumalai PV, and Mohammad Asif
- Subjects
Vienna rectifier ,Battery chargers ,Ultra-fast charging (UFC) ,Power factor ,Total harmonic distortion ,Energy Conservation ,Technology - Abstract
Global DC fast-charging infrastructure is being rapidly developed to accommodate the ever-increasing demand from the electric vehicle market. A major complication in the electric power system's process is the proliferation of ultra-fast charging (UFC) stations, which are known for their enormous power consumption and unpredictable, intermittent performance. By implementing grid-supportive features and ensuring an improved power consumption profile for the grid, installing regional energy storage can solve these challenges. This study presents a control approach for managing the grid-side AC/DC converters of rapid charging stations focused on future-oriented regulation. The paper primarily concentrates on various Vienna rectifier topologies. The technology, characteristics, benefits, and operational aspects of Vienna rectifier topologies are vital to improving the performance, efficiency, and grid integration of electric vehicle charging systems. Fast charging, grid stability, energy economy, and the smooth integration of electric vehicles into the electrical grid are all made possible by Vienna rectifiers. When used in battery energy storage systems (BESS) for electric vehicle charging infrastructure, Vienna rectifiers allow for effective discharge and charging of the batteries. The configurations and assessments of these converters are examined, assessed, and compared based on power output parameters, element count, power factor, THD, and efficiency. The Vienna rectifier has been identified as the best suitable DC fast-charging converter architecture for power levels exceeding 15 kW due to its exceptional efficiency, limited output voltage ripples, high power density, reduced current ripples, and reliable performance. Research on ways to improve electric vehicle charging infrastructure can be spurred by a better grasp of the Vienna rectifier's technological complexities and performance benefits, leading to greener and more efficient transportation options. As a result, the system's power density will eventually rise and elemental stress will decrease.
- Published
- 2024
- Full Text
- View/download PDF
33. Brazil Kick-Starts Electric Highway Initiative: Brazil explores the use of 'electrocenters' to charge EVs simultaneously and a demand control system to address the power limitations of charging EV batteries
- Author
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Bianchin, Carlos Gabriel, Schmal, Ricardo Muzzolon, Miggiorin, Rafael Moreira, Costa, Rhafael Freitas Da, De Medeiros, Lucio, and Santos, Rodrigo Braun Dos
- Subjects
Control systems ,Electric vehicles ,Battery chargers ,Electronics and electrical industries - Abstract
Like many countries around the world, Brazil has seen a significant increase in the utilization of electric vehicles. During the pandemic, the country saw an increase of 80% in utilization [...]
- Published
- 2024
34. BATTERIES get a jolt: That's a good thing. Lithium-ion batteries are well past the early adopter stage as they make notable inroads on lead acid. Here's a look at the reasons why
- Author
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Forger, Gary
- Subjects
Materials handling -- Equipment and supplies ,Battery chargers ,Business, general ,Business ,Engineering and manufacturing industries - Abstract
If you hear some scuffling out in the battery charger room, go take a look. No, it's not mice. But it might be some of your people with laser tape [...]
- Published
- 2024
35. COMPACT SWITCHABLE HOT BOX.
- Author
-
Care, David
- Subjects
FIRE engines ,BATTERY chargers ,INTERNAL combustion engines ,SHEET metal ,MAGNETO - Abstract
This article from Farm Collector discusses the importance of easy starting for engine collectors and provides methods to increase spark energy at low RPM for improved starting. The article describes different techniques such as replacing the OEM magnet with a rare-earth-enhanced magnet, rewinding the armature with modern insulated wire, and using a battery and coil to start the engine. It also introduces a compact switchable hot box design that allows for easy switching between the magneto and battery and coil. The article provides detailed instructions and diagrams for building the switchable hot box. [Extracted from the article]
- Published
- 2024
36. A MCR‐WPT system based on LCL‐S/P hybrid compensation network with CC/CV and maximum power optimization suiting for battery charging
- Author
-
Kun Li, Zheng Gong, Qing Liu, Shuaiyong Zheng, Junyou Liu, and Shuaizhong Wang
- Subjects
battery chargers ,DC–DC power convertors ,power supply circuits ,switched mode power supplies ,Electronics ,TK7800-8360 - Abstract
Abstract A novel magnetic coupling resonance wireless power transfer (MCR‐WPT) system, which has constant‐current (CC) and constant‐voltage (CV) output characteristics suiting for batteries charging, is proposed in this paper. The hybrid compensation topology is adopted; in detail, the LCL‐P circuit topology is used in the CC mode, while the LCL‐S topology is used in the CV mode. Since the switchable components are only located at the receiving side of WPT, the switching can be controlled by the receiving side based on the batteries’ state without data communication between transmitting side and receiving side. Furthermore, an adjustable frequency tuning method which is based on proportion integration (PI) closed‐loop controlled by the transmitting side is applied to maximize the current of the transmitting coil. This method also can solve the frequency splitting problem, improving the stability and power of the system while the distance of the two sides changes. The performance of the proposed WPT system is verified by simulation and experiments. The experiment results show that the load current variation is less than 3% in the CC mode and the load voltage changes less than 5% in the CV mode, as the load resister changes from 5 to 20 Ω.
- Published
- 2024
- Full Text
- View/download PDF
37. Bidirectional wide range and high voltage gain buck‐boost DC‐DC converter for EV chargers empowering V2G‐G2V applications
- Author
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Zahra Gholami, Rahim Ildarabadi, Hamed Heydari‐Doostabad, Mohammad Monfared, and Terence O'Donnell
- Subjects
battery chargers ,dc‐dc power convertors ,electric vehicle charging ,power electronics ,Electronics ,TK7800-8360 - Abstract
Abstract This paper proposes a new wide range bidirectional buck‐boost dc‐dc converter with improved voltage gain in either forward (discharging) or backward (charging) direction for electric vehicle (EV) applications. The converter has high‐voltage gain ratio with no theoretical limits in the output voltage in both directions, and presents a good balance between the component count, number of conducting components, semiconductor device ratings, having direct connection between input and output terminals, and efficiency which makes it a practical solution for the EV charger levels 1, 2, and 3 power converter unit. The operating principle, steady‐state characteristics including the current and voltage stress of the switches, and comparison with other state of the art dc‐dc bidirectional converters are explained in detail. In order to validate the theoretical analysis, a 500 W, 200 V or 40 V to 180 V laboratory prototype is implemented. The obtained results confirm the applicability of this structure and demonstrate a peak efficiency of 97.2% in the forward and 97.6% in the backward direction modes of operation.
- Published
- 2024
- Full Text
- View/download PDF
38. An Overview of 800 V Passenger Electric Vehicle Onboard Chargers: Challenges, Topologies, and Control
- Author
-
Sukanya Dutta and Jennifer Bauman
- Subjects
AC-DC power converters ,battery chargers ,DC-DC power converters ,electric vehicles ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
Ultrafast charging can help increase the adoption of battery electric vehicles (BEVs) as it solves the prime issues of range anxiety and long charging time. However, for conventional 400 V battery systems, these high charging currents can become infeasible due to cable limitations and thermal issues. Fortunately, 800 V systems can provide higher charging power capacity at lower current levels, better enabling ultrafast charging. The emerging shift to 800 V systems from 400 V systems requires careful design considerations for the on-board charger (OBC). This article fills a gap in the literature by performing a comprehensive review of state-of-the-art 800 V passenger BEV OBC topologies and control, focusing primarily on 1-phase topologies as the majority of residential charging connections are 1-phase. This article also reviews the main design challenges for 800 V OBCs and relevant industrial products, and provides a discussion of related future trends.
- Published
- 2024
- Full Text
- View/download PDF
39. A Low Impact V2H Battery Charging Station Using an AC Green Plug Switched Filter Scheme
- Author
-
Albe M. Bloul, Adel M. Sharaf, Hamed H. Aly, and Jason Gu
- Subjects
Modulated AC green plug switched filter ,vehicle to grid ,battery chargers ,type 2 fuzzy logic control schemes ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
This work proposes a switched/modulated capacitor filter approach for optimizing electric vehicle (EV) and vehicle-to-house (V2H) battery-charging stations. The proposed method employs using classical optimized Type- 2 Fuzzy Logic Controller. Multi-mode charging modes are modified to enable super-fast charging and enhanced power quality while reducing voltage transients on the DC side, inrush currents and harmonics on the AC side. An inter-coupled AC-DC capacitor interface equipped with dual complementary switching modes is utilized by the modulated filter to enable capacitive compensator pulsing and dual operational modes for the tuned arm filter. The aim of the proposed switched inter-coupled AC-DC filter compensation strategy is to achieve EV-enhanced electrical power usage by mitigating AC-DC voltage transients and inrush currents. The paper presented a dual action switched capacitors-tuned filter and reactive compensator scheme. The dual action complementary switched filter/capacitor compensator is controlled by a multi loop regulation controller to ensure effective measured action based on the global errors sum of the voltage and current/power loops. The novelty of the paper lies in using a multi loop weighted error action to carry the Pulse-Width Modulation (PWM) power width modulation - duty cycle ratio based on slow changing dynamic/inrush loads. Results show the importance of the proposed scheme for improving the overall system efficiency and quality. The proposed scheme is tested and validated under different operating conditions and proved its effectiveness for various conditions.
- Published
- 2024
- Full Text
- View/download PDF
40. ANKER MAGGO 3-IN-1 WIRELESS CHARGING STATION: TRAVEL-FRIENDLY QI2 FAST APPLE CHARGER
- Subjects
Smart phones ,Battery chargers ,Smart phone ,Business ,Computers and office automation industries - Abstract
BY SINOM JARY A new army of wireless chargers is about to emerge: faster, more efficient, and, we hope, more affordable, and based on the latest Qi2 (pronounced “chee too”) [...]
- Published
- 2024
41. Should you keep your MacBook plugged in when you’re using it?
- Subjects
Batteries ,Electric vehicles ,Battery chargers ,Business ,Computers and office automation industries - Abstract
BY GLENN FLEISHMAN (IMAGE: FOUNDRY) Over the last several years, Apple has dramatically improved how it handles lithium-ion battery charging in iPhones, iPads, Macs, and Apple Watches. Across multiple system [...]
- Published
- 2024
42. American Cancer Society Hope Lodge® Communities Go Electric with Turnkey EV Transportation Solutions Provided by Chevrolet, Qmerit, and Schneider Electric
- Subjects
Societies ,Transportation ,Electric vehicles ,Transportation industry ,Associations, institutions, etc. ,Electrical equipment and supplies industry ,Battery chargers ,Physical fitness ,Health - Abstract
2024 AUG 31 (NewsRx) -- By a News Reporter-Staff News Editor at Obesity, Fitness & Wellness Week -- Ten American Cancer Society Hope Lodge communities now have an easy, reliable, [...]
- Published
- 2024
43. Skoda partners with Noodoe in Taiwan
- Subjects
Battery chargers ,Automobile industry ,Business - Abstract
Byline: Dani Cole Skoda Taiwan and Noodoe have announced a partnership to build extensive charging infrastructure across Taiwan. This is part of Skoda’s recently announced initiative to improve the EV [...]
- Published
- 2024
44. BorgWarner to debut LFP battery packs, DC charging station for CVs at IAA Transportation
- Subjects
Transportation ,Transportation industry ,Battery chargers ,Automobiles - Abstract
Byline: Autocar Pro News Desk BorgWarner will also present a comprehensive range of advanced commercial vehicle technologies, including CV inverters, eMotors, high-efficiency turbochargers, thermal management solutions such as battery coolers, [...]
- Published
- 2024
45. 'We Have Achieved 95% Localisation For AC Charger Components And Over 45% For DC Chargers'
- Subjects
All terrain vehicles ,Electric vehicles ,Battery chargers ,Electronics - Abstract
Byline: Nitisha Dubey During a conversation with Nitisha from EFY, Mayank Jain of E-Fill Electric, discusses the company's EV chargers and the unique patented features designed to streamline the experiences [...]
- Published
- 2024
46. Now, get real time data on Ather's fast charging stations on Google Maps
- Subjects
Digital map services ,Electric vehicles ,Battery chargers ,Map database ,Automobiles ,Google Maps (Map database) - Abstract
Byline: Autocar Pro News Desk This collaboration aims to streamline the EV charging process for two-wheeler users, making it easier to locate and utilize Ather Grid fast chargers across India. [...]
- Published
- 2024
47. The Future of Solar-Powered EV Charging Stations
- Subjects
Solar energy ,Electric vehicles ,Battery chargers ,Business, general - Abstract
As the world shifts towards cleaner energy solutions, solar-powered EV charging stations are emerging as a game-changer in sustainable transportation. These stations combine solar energy with electric vehicle (EV) charging [...]
- Published
- 2024
48. Coast-2-Coast EV Road Tripmakes Rochester area stop
- Subjects
Electric vehicles ,Battery chargers ,Business ,Business, regional - Abstract
Byline: Andrea Deckert Greater Rochester Clean Cities recently hosted Daphne Dixon of Live Green Network and the Clean Transportation Coalition of Western Connecticut when she stopped in Victor earlier this [...]
- Published
- 2024
49. iVOOMi And Octarange Collaborate To Boost Electric Bike RD
- Subjects
Bicycle industry ,Batteries ,Electric bicycles ,Battery chargers ,Electronics - Abstract
Byline: Aryaman Raghuvanshi Electric bike company iVOOMi teams up with tech firm Octarange to improve R&D. Early outcomes suggest improved mileage and battery life, setting iVOOMi up to create advanced [...]
- Published
- 2024
50. Tata Motors Partners With Delta Electronics, Thunderplus For 250 Fast-Charging Stations
- Subjects
Commercial vehicles ,Electric vehicles ,Battery chargers ,Electronics - Abstract
Byline: Aryaman Raghuvanshi Based on its insights into the commercial electric vehicle trend, Tata Motors will suggest ideal locations and closest dealerships for establishing these fast-charging stations. Tata Motors has [...]
- Published
- 2024
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