17 results on '"Rishabh Verma"'
Search Results
2. Impact of DG integration on Passive Distribution Network
- Author
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Gaurav Kumar, Rishabh Verma, and Diljinder Singh
- Published
- 2022
3. Impact of Energy Storage on Two-area Interconnected Power System with Advanced Fuzzy-PID Controller
- Author
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Adarsh Kumar, Rishabh Verma, and Diljinder Singh
- Published
- 2021
4. Photovoltaic Power Efficient Adjustment using Maximum Power Point Tracking and Boost Converter
- Author
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Rishabh Verma and M.A. Ansari
- Published
- 2021
5. UrbanPose: A New Benchmark for VRU Pose Estimation in Urban Traffic Scenes
- Author
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Rishabh Verma, Christoph Weinrich, Ulrich Kressel, Baofeng Wang, Fabian B. Flohr, Sijia Wang, Jayanth Ramesh, Diange Yang, and Zijie Guo
- Subjects
business.industry ,Computer science ,Deep learning ,Machine learning ,computer.software_genre ,Bounding overwatch ,Feature (computer vision) ,Prediction methods ,Trajectory ,Benchmark (computing) ,Artificial intelligence ,business ,computer ,Pose ,Road user - Abstract
Human pose, serving as a robust appearance-invariant mid-level feature, has proven to be effective and efficient for human action recognition and intention estimation. Pose features also have a great potential to improve trajectory prediction for the Vulnerable Road User (VRU) in ADAS or automated driving applications. However, the lack of highly diverse and large VRU pose datasets makes a transfer and application to the VRU rather difficult. This paper introduces the Tsinghua-Daimler Urban Pose dataset (TDUP), a large-scale 2D VRU pose image dataset collected in Chinese urban traffic environments from on-board a moving vehicle. The TDUP dataset contains 21k images with more than 90k high-quality, manually labeled VRU bounding boxes with pose keypoint annotations and additional tags. We optimize four state-of-the-art deep learning approaches (AlphaPose, Mask R-CNN, Pose-SSD and PitPaf) to serve as baselines for the new pose estimation benchmark. We further analyze the effect of using large pre-training datasets and different data proportions as well as optional labeled information during training. Our new benchmark is expected to lay the foundation for further VRU pose studies and to empower the development of accurate VRU trajectory prediction methods in complex urban traffic scenes. The dataset (including an evaluation server) is available on www.urbanpose-dataset.com for non-commercial scientific use.
- Published
- 2021
6. Design and Performance Analysis for Underground Trains using Optisystem
- Author
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Anurag Chauhan, Rishabh Verma, Rishabh Sharma, and Ashish Joshi
- Subjects
business.industry ,Computer science ,Low-pass filter ,Q factor ,Electronic engineering ,Optical communication ,Bit error rate ,Wireless ,Train ,Optical filter ,business ,Communication channel - Abstract
In this study, Wireless Optical Communication LOS model for underground trains to station based on FSO is designed and simulated to achieve optimum performance and reduced bit error ratio. The FSO medium is highly dependent on Air Quality and Weather conditions bit error ratio vary depending on the conditions. The aim of this design is to achieve a lower Bit error ratio and to increase the range for the communication. The simulation is designed to improve the quality of communication through FSO channel by reducing the bit error ratio through filtering techniques. The results of this simulation will help future research and implementations of the FSO based wireless optical communication for underground trains. This simulation is based on V2I architecture where the communication is based on FSO technology.
- Published
- 2021
7. Application of Computational Techniques in Demand Response: A Review
- Author
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Rishabh Verma
- Subjects
Computer science ,020209 energy ,020208 electrical & electronic engineering ,Computational intelligence ,02 engineering and technology ,Energy consumption ,Communications system ,Industrial engineering ,Demand response ,Load management ,Smart grid ,Control theory ,0202 electrical engineering, electronic engineering, information engineering ,Operating expense - Abstract
The smart grid is widely considered as the advanced version of the power grid. As an essential characteristic of the smart grid, demand response can reschedule the user’s energy consumption to reduce the operating expense from expensive generators, and further to defer the capacity addition in the long run. Demand Response functions as a vital controller for the present electrical framework. From outsider see the interest reaction can be viewed as two connections, one related to customer viewpoint and the other is pertinent to energy supplier or market administrators. But both links are driven by the application of different computational techniques. Throughout the smart grid, the advanced computational technique has been properly utilized to enhance the outcome and capability of learning. The salient feature of this paper is to criticize the applicability of computational techniques for demand response. The paper explores major aspects such as DR issues, different computational techniques, and future extensions of demand response.
- Published
- 2021
8. Load Management in Active Distribution Network Including Stochastic Behaviour of DGs
- Author
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Rishabh Verma
- Subjects
021103 operations research ,Wind power ,Computer science ,business.industry ,020209 energy ,Photovoltaic system ,0211 other engineering and technologies ,Mode (statistics) ,02 engineering and technology ,AC power ,Automotive engineering ,Electric power system ,Load management ,Limit (music) ,0202 electrical engineering, electronic engineering, information engineering ,business ,Load shifting - Abstract
Distribution network advancement is the most trending topic in the power system. From reserve capacity reduction by distributed generator (DG) integration to consumer active participation for load management, all the significant changes are occurring in the distribution network. This paper proposes a consumer participation-based load management approach in presence of DGs. Distributed generators such as Photovoltaic (PV) and wind turbines are added to the distribution feeder in constant power voltage mode. Load management is proposed by providing monetary benefits to the consumer for their active participation. Excessive load shifting and formulation of the new peak is prevented by constraints such as thermal, voltage, active and reactive power limit of feeder. Special attention is paid to DGs reactive power supply. The performance of the proposed load management scheme is verified on 15-bus feeder system.
- Published
- 2021
9. DG Penetration in Distribution Networks: A Review
- Author
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Mohan Kashyap and Rishabh Verma
- Subjects
Flexibility (engineering) ,Computer science ,020209 energy ,Distributed computing ,Scale (chemistry) ,020208 electrical & electronic engineering ,02 engineering and technology ,Power (physics) ,Electric power system ,Electric power transmission ,Transmission (telecommunications) ,0202 electrical engineering, electronic engineering, information engineering ,Electric power ,Energy harvesting - Abstract
Distribution networks transfer the electrical power the last few miles from transmission to local load centers. These were at first planned as passive systems providing the one directional connection between transmission networks and power end-users. The introduction of Distributed generations (DGs) proposes energy harvesting systems with more flexibility and bidirectional power flows. DGs are intended for generators that are usually employed at a small scale. These generators produce electrical power at places nearer to a consumer or connected to a distribution network. These include both conventional and non-conventional energy resources. In unconnected areas, DGs provide monetary benefits because their installation disposes of the requirement for costly development of distribution and transmission lines. This paper provides a review on significant DG benefits, challenges, applications, drawbacks, and different approaches for DG penetration and gives an insight to power system researchers and engineers for optimal DG planning.
- Published
- 2021
10. Advancement of Control Techniques in Deregulated Automatic Generation Control: An Overview
- Author
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Rishabh Verma, Adarsh Kumar, and Diljinder Singh
- Subjects
Automatic Generation Control ,Computer science ,020209 energy ,020208 electrical & electronic engineering ,Control (management) ,Control engineering ,02 engineering and technology ,Fuzzy control system ,Transient analysis ,Power (physics) ,Electric power system ,Electricity generation ,0202 electrical engineering, electronic engineering, information engineering ,Transient (oscillation) - Abstract
The power system operation needs to keep the harmony among the power generation and demand, failing which will leads to sudden rise and fall of frequency as well as transient tie-line power. AGC is one of the significant control phenomenon in power system, for control of frequency and power in an interconnected system. This paper presents the details of issues related with specific controlling techniques used in AGC at the past and with what control we can rectify those issues in future. This paper also presents a brief review of the controlling methods that has been exercised to automatic generation control (AGC) from the primeval time to the modern day. Review related to literature work of AGC in deregulated environment has been presented.
- Published
- 2021
11. Modified IMC for Automatic Voltage Regulator via Order Reduction Techniques
- Author
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Anil Kumar Yadav, Pawan Pathak, and Rishabh Verma
- Subjects
Truncation ,Computer science ,020209 energy ,010102 general mathematics ,Internal model ,Reduction of order ,PID controller ,02 engineering and technology ,Voltage regulator ,01 natural sciences ,Control theory ,Frequency domain ,0202 electrical engineering, electronic engineering, information engineering ,ComputerSystemsOrganization_SPECIAL-PURPOSEANDAPPLICATION-BASEDSYSTEMS ,0101 mathematics ,Cluster analysis - Abstract
This paper presents the design, application and analysis of low order modified internal model controller (M-IMC) for automatic voltage regulator (AVR). The drawback of traditional IMC (T-IMC) is the poor input and output disturbance rejection performances that play the key role in AVR for industrial applications. The performance of AVR with M-IMC is compared to T-IMC and ZN tuned PID controller. To the design of low order IMCs, the Routh approximation, improved pole clustering, and truncation methods are applied for the reduction of order of AVR system. The low order controllers are reduces the complexity and computational time of overall system.
- Published
- 2020
12. Study and Implementation of Charging Battery of the Car using Pumping System and Indicating the battery Percentage present in Fuel Car
- Author
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Abhyudaya Sharma, Sumeet Sehrawat, Kamlesh Pandey, Arvasu Chikara, and Rishabh Verma
- Subjects
Ignition system ,Battery (electricity) ,Starter ,law ,Computer science ,Automotive battery ,Automotive engineering ,law.invention - Abstract
This paper is to discuss about the design a fuel car battery charging system using a foot-pump, that charges the battery enough to start the vehicle. A conventional consumer model automobile has a battery capacity of 50Ah to 60Ah that generally lasts for several years. The starting current required for starter motor of such automobiles ranges from 200A to 500A, which is supplied by the battery and the starter circuit. In scenario of failure of the battery to provide sufficient charge, the above-mentioned device would be used. The project is focused elimination of automotive battery problems, which directly or indirectly revolves around the inability of the battery to produce enough charge to start the vehicle. The occurrence of such situations is generally high in regions with extreme temperature, since a battery failure can be caused by both high and low temperatures. The effectiveness as well as demand for such device will be significantly more in cold weathers (especially in areas with perpetual cold climate). The project also rules out the necessity of jump starting the vehicle with the help of another vehicle's battery. Since the uncertainty of availability of another vehicle for jump starting is one of the major causes of being stranded, the device will prove to be of much help in such cases.
- Published
- 2020
13. Countermeasures Against Jamming Attack in Sensor Networks with Timing and Power Constraints
- Author
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Rishabh Verma, Himani Joshi, Sumit J. Darak, Rohit Kumar, and Vinay Anand Tikkiwal
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Computer science ,ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS ,Real-time computing ,Jamming attack ,Denial-of-service attack ,Jamming ,Markov decision process ,Wireless sensor network ,Sleep time ,Multiple sensors - Abstract
In a typical wireless sensor network (WSN), a central controller collects information from multiple sensors which are battery operated. The challenging problem is how to minimize the number of re-transmissions or increase the sleep time of sensors without compromising on the timeliness of the sensed information. The age of information (AoI) is a recently proposed measure of freshness or timeliness of the sensed information at the central controller. The problem becomes even more challenging under the denial of service attack from in-band full duplex jammers. Such jammers can sense the transmissions while injecting interference allowing them to react instantaneously with the transmission strategies. We develop a decision making policy for the central controller to combat such jammers with an aim to minimize the number of re-transmissions without compromising on the AoI. To boost the anti-jamming capability of the WSN, we introduce three modes for sensors: sleep, silent and transmit. We then jointly optimize the decision of when to switch the operating mode of each sensor and when to hop to a new channel using Markov Decision Process. We validate the superiority of the proposed strategy via extensive simulation results considering various parameters such as switching cost, transmission cost, failure to meet AoI cost and channel qualities.
- Published
- 2019
14. Power Flow Analysis of Unbalanced Distribution Network with Integration of Various Characteristics DGR
- Author
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Vaskar Sarkar and Rishabh Verma
- Subjects
business.industry ,Computer science ,020209 energy ,Computation ,02 engineering and technology ,AC power ,law.invention ,Capacitor ,Control theory ,law ,Distributed generation ,0202 electrical engineering, electronic engineering, information engineering ,Voltage droop ,Power-flow study ,business ,Decoupling (electronics) ,Voltage - Abstract
The objective of this paper is to propose a computationally efficient load flow technique for an unbalanced active distribution network. A modified load flow technique is derived, which is generalized enough for considering various kind of distributed generation resource (DGR) with precise operating characteristics. Constant power voltage (PV) and droop regulated mode of operations are considered for DGR characteristics modelling. Proposed technique is suitable for weakly mesh feeder network since no separate treatment is required. Sequence component frame model is used in the network decoupling for faster computation. Tests are carried out on two different size network to verify accuracy and computation efficiency. Standard IEEE 34 and 123 bus feeder distribution network with some modifications are considered for the case study. Results are validated based on the computation speed and convergence achievement with literature.
- Published
- 2018
15. Residential Demand Response Framework by Incorporating Renewable Energy Sources to Reduce Carbon Footprints
- Author
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Rajesh Kumar, Shalini Pal, and Rishabh Verma
- Subjects
business.product_category ,business.industry ,Computer science ,020209 energy ,Photovoltaic system ,ComputerApplications_COMPUTERSINOTHERSYSTEMS ,02 engineering and technology ,Energy consumption ,Environmental economics ,Renewable energy ,Demand response ,Energy conservation ,Load management ,Electric vehicle ,0202 electrical engineering, electronic engineering, information engineering ,Electricity ,business - Abstract
Demand response (DR) technologies can curtail peak electricity usage, preserve energy conservation and, as well as reduce carbon emission by employing renewable energy sources. This paper presents appliances based home energy consumption scheduling in the framework of demand response technologies. The user behavior is accounted in the form of their daily energy need based on the appliance operation. The renewable energy sources such as solar photovoltaic and fuel cell are considered as generation available at the user homes and can be directed towards a significant reduction in carbon footprints. The energy user also sustains the use of electric vehicle and storage system. A day ahead load scheduling is done to allow the smart charging of electric vehicle and scheduling of smart appliances in order to reduce carbon emission and consumer daily bill benefits by indulging in the programs offered by the load-serving entity. The Simulation results demonstrate a significant reduction of 246.8 lbs in carbon footprints and maximum savings of$ 13.34 on users daily electricity bill when compared with before DR scheduling.
- Published
- 2018
16. An Improved Forward-Backward Sweep Technique for the Load Flow Analysis of a Distribution Network with Accurate Modeling of Zero Sequence Voltages
- Author
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Rishabh Verma and Vaskar Sarkar
- Subjects
Distribution networks ,Computer science ,020209 energy ,Forward backward ,02 engineering and technology ,Admittance parameters ,law.invention ,law ,Electromagnetic coil ,Control theory ,0202 electrical engineering, electronic engineering, information engineering ,Power-flow study ,Transformer ,Voltage ,Network model - Abstract
The objective of this paper is to improve the accuracy of the results obtained from the load llow analysis of a distribution network via forward-backward sweeps. Specific attention is paid to the two-port modeling of a transformer with precise consideration for the zero sequence components of its port voltages. The zero sequence voltages at transformer ports are often ignored in the conventional load llow analyses. A new two-port network model is derived, which is generalized enough for the accurate representation of a transformer in the cascaded connection. Based upon the novel two-port representation made, a new set of iteration rules is established to carry out the forward-backward sweeps for solving the load llow results. All possible transformer configurations are taken into account. It is shown that the load llow analysis technique proposed is suitable for both active and passive distribution networks. The accuracy analysis of the load llow results is also carried out. For a given load llow result, by assessing the nodal current imbalances are evaluated based upon the admittance matrix representation of the network. Case study is performed to demonstrate the utility of the proposed load llow analysis technique.
- Published
- 2018
17. Fuzzy gain scheduled automatic generation control of two area multi unit power system
- Author
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Rishabh Verma, Shalini Pal, and S. Sathans
- Subjects
Engineering ,Electric power system ,Automatic Generation Control ,business.industry ,Control theory ,PID controller ,Control engineering ,Fuzzy control system ,business ,Fuzzy logic ,Power control ,Power (physics) - Abstract
This study presents the design of a fuzzy gain scheduled proportional-derivative (FGSPD) controller with integral controller for automatic generation control (AGC) of two-area multi unit power system. The power system investigated comprises of two reheat type thermal units operating in parallel in area-1 and two hydro units of same capacity operating in parallel in area-2. The dynamic response has been studied for step load disturbance in area-1 considering settling times, overshoots and undershoots of the frequency and tie-line power deviations as performance indices. The proposed fuzzy based controller is compared against conventional integral and optimally tuned proportional-integral-derivative (PID) controllers. The Comparative analysis of the performance indicates that the proposed controller gives the best results among all the controllers. The simulations have been performed using Matlab.
- Published
- 2013
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