12 results on '"Ippolito, M.G."'
Search Results
2. Innovative control logics for a rational utilization of electric loads and air-conditioning systems in a residential building
- Author
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Graditi, G., Ippolito, M.G., Lamedica, R., Piccolo, A., Ruvio, A., Santini, E., Siano, P., and Zizzo, G.
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- 2015
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3. Crowded comparison operators for constraints handling in NSGA-II for optimal design of the compensation system in electrical distribution networks
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Favuzza, S., Ippolito, M.G., and Sanseverino, E. Riva
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- 2006
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4. Impact of building automation control systems and technical building management systems on the energy performance class of residential buildings: An Italian case study.
- Author
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Ippolito, M.G., Riva Sanseverino, E., and Zizzo, G.
- Subjects
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AUTOMATION in office buildings , *AUTOMATIC control systems , *BUILDING operation management , *HOME energy use , *ECONOMIC impact analysis , *CASE studies - Abstract
Highlights: [•] Relation between BACS and energy performance of buildings. [•] Economic impact of BACS and TBM. [•] Effects of the application of EN 15232 to the Italian procedure for energy certification of buildings. [•] Calculation of the PBP of the investment for installing BACS in a residential building. [ABSTRACT FROM AUTHOR]
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- 2014
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5. An original control strategy of storage systems for the frequency stability of autonomous grids with renewable power generation
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Mariano Giuseppe Ippolito, Fabio Massaro, Rossano Musca, Gaetano Zizzo, Ippolito M.G., Massaro F., Musca R., and Zizzo G.
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Technology ,Control and Optimization ,Computer science ,020209 energy ,Automatic frequency control ,Frequency stability ,Synthetic inertia ,Energy Engineering and Power Technology ,02 engineering and technology ,Small islands ,Electric power system ,0202 electrical engineering, electronic engineering, information engineering ,Frequency droop ,Voltage droop ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Renewable Energy, Sustainability and the Environment ,business.industry ,020208 electrical & electronic engineering ,Control engineering ,Converters ,Grid ,Renewable energy ,Power (physics) ,Autonomous systems ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,Primary reserve ,Interfacing ,business ,Energy (miscellaneous) ,Storage systems - Abstract
This work examines the operation of the autonomous power system of a geographical island assuming the integration of significant generation shares from renewable energy sources and the installation of the required storage systems. The frequency stability of the system is investigated considering different operating conditions, in terms of load demand and renewable power generation. The main focus of the work is an original control strategy specifically designed for power converters interfacing storage units to the grid. The proposed strategy is based on an extended frequency droop control, which selects specific droop settings depending on the operating mode—charge or discharge—of the storage unit. A simulation model of the whole electrical system is developed for dynamic analysis. The model also implements the possibility of including specific auxiliary frequency controls for synthetic inertia and primary reserve. The results of the simulation and analysis indicate that the proposed control strategy has a significant positive effect, making the storage units able to provide a fundamental and more effective support to the frequency stability of the system. The application of the proposed control strategy to storage units also reduces the need for a contribution to the frequency control from intermittent and variable sources, making the whole system more robust, stable and reliable.
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- 2021
6. Analysis and simulations of the primary frequency control during a system split in continental europe power system
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Gaetano Zizzo, Mariano Giuseppe Ippolito, Rossano Musca, Ippolito M.G., Musca R., and Zizzo G.
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Control and Optimization ,lcsh:T ,Renewable Energy, Sustainability and the Environment ,Computer science ,Event (relativity) ,Continental Europe ,Automatic frequency control ,Process (computing) ,Energy Engineering and Power Technology ,Power systems dynamics ,system split ,frequency containment reserve ,frequency control ,power-frequency characteristic ,power systems dynamics ,lcsh:Technology ,Stability (probability) ,Power (physics) ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,Electric power system ,Control theory ,Frequency containment reserve ,Frequency control ,Power-frequency characteristic ,System split ,Systems design ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Energy (miscellaneous) - Abstract
The occurrence of system separations in the power system of Continental Europe has been observed in recent decades as a critical event which might cause power imbalances higher than the reference incident specified per system design, representing an actual challenge for the stability and safe operation of the system. This work presents an analysis and simulations of the primary frequency control in the Continental Europe synchronous area in conditions of system separation. The adopted approach is based on fundamental aspects of the frequency-containment reserve process. The analysis takes an actual event into consideration, which determined the separation of the system in January 2021. The main purpose of the work is the development of specific models and simulations able to reproduce the actual split event. Due to specific arrangements discussed in detail, it is possible to obtain a substantial match between the simulations and the frequencies registered after the system split. The work also provides insight into the importance of the temporal sequence of power imbalances and defensive actions in the primary frequency control process. The models developed in the work are finally used to investigate the separation event under different operating conditions, such as missing defensive actions and low inertia scenarios.
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- 2021
7. Improving angle stability by switching shunt reactors in mixed overhead cable lines. An Italian 400 kV case study
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Fabio Massaro, Rossano Musca, Mariano Giuseppe Ippolito, Ippolito M.G., Massaro F., and Musca R.
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Control and Optimization ,Mixed line ,Computer science ,Energy Engineering and Power Technology ,system stability ,mixed line ,cable ,shunt reactor ,switching ,dynamic analysis ,dynamic equivalent ,Sicily ,Italy ,continental Europe ,lcsh:Technology ,Dynamic analysi ,law.invention ,Electric power system ,System stability ,law ,Control theory ,Electrical and Electronic Engineering ,Control logic ,Engineering (miscellaneous) ,Dynamic equivalent ,lcsh:T ,Renewable Energy, Sustainability and the Environment ,Continental Europe ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,Transmission (mechanics) ,Shunt reactor ,Overhead cable ,Switching ,Shunt (electrical) ,Energy (miscellaneous) ,Voltage ,Cable - Abstract
Stringent environmental constraints make the construction of new transmission overhead lines more and more difficult. Alternatively, today it is possible to use cable lines for high (HV) and extra-high (EHV) voltage systems. The configuration of the so-called mixed lines can create some problems in the operation of the electrical system, both during steady-state and transient conditions. In particular, the system stability is one of the main concerns when analyzing the dynamic response of power systems. In this paper, the study of angular stability of a system containing a mixed line is presented: a specific control logic applied to the shunt reactors of the mixed line is proposed as improvement of the overall system stability. The proposed switching logic is first discussed from a theoretical point of view and validated with two different testing systems. Then, the existing overhead-cable lines connecting Sicily to the rest of continental Europe 400 kV power system are taken as case study for the application of the proposed switching strategy. Several simulations are performed in the power system analysis software NEPLAN360: the results show the fundamental role of the timing of the control actions applied on the shunt reactors in helping the system to keep the stability. The proposed control proves to be an effective support to the system subjected to critical contingencies, contributing decisively to avoid the angular separation between areas and therefore to preserve the stability of the system.
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- 2019
8. Ancillary Services in the Energy Blockchain for Microgrids
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Pierluigi Gallo, Mariano Giuseppe Ippolito, Gaetano Zizzo, Maria Luisa Di Silvestre, Eleonora Riva Sanseverino, Quynh T. Tran, Rossano Musca, Di Silvestre, M.L., Gallo, P., Ippolito, M.G., Musca,R., Riva Sanseverino,E., Tran, Q.T.T., and Zizzo, G.
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Blockchain ,Computer science ,020209 energy ,Distributed computing ,dis- tributed generation ,02 engineering and technology ,Industrial and Manufacturing Engineering ,Electric power system ,0202 electrical engineering, electronic engineering, information engineering ,Remuneration ,Electrical and Electronic Engineering ,energy blockchain ,Glow- worm Swarm Optimization ,Settore ING-INF/05 - Sistemi Di Elaborazione Delle Informazioni ,P2P ,Settore ING-INF/03 - Telecomunicazioni ,020208 electrical & electronic engineering ,Transactive energy ,AC power ,Grid ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,Control and Systems Engineering ,Optimal reactive power flow ,Microgrid ,Voltage regulation ,Database transaction - Abstract
The energy blockchain is a distributed Internet protocol for energy transactions between nodes of a power system. Recent applications of the energy blockchain in microgrids only consider the energy transactions between peers without considering the technical issues that can arise, especially when the system is islanded. One contribution of the paper is, thus, to depict a comprehensive framework of the technical and economic management of microgrids in the blockchain era, considering, for the first time, the provision of ancillary services and, in particular, of the voltage regulation service. When more PV nodes are operating in the grid, large reactive power flows may appear in the branches. In order to limit such flows, a reactive optimal power flow (R-OPF) is solved, setting the voltage at the PV buses as variables within prescribed limits. Each PV generator will thus contribute to voltage regulation, receiving a remuneration included in the transaction and certified by the blockchain technology. For showing how this system can work, a test microgrid, where some energy transactions take place, has been considered. For each transaction, the R-OPF assigns the reactive power to the PV buses. The R-OPF is solved by a glow-worm swarm optimizer. Finally, the paper proposes a method for remuneration of reactive power provision; this method, integrated into the blockchain, allows evaluating the contribution to voltage regulation and increases the transparency and cost traceability in the transactions. The application section shows the implementation of a Tendermint-based energy transaction platform integrating R-OPF and the earlier cited technical assessments.
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- 2019
9. New Energy Corridors in the Euro-Mediterranean Area: The Pivotal Role of Sicily
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Rossano Musca, Fabio Massaro, Mariano Giuseppe Ippolito, Gaetano Zizzo, Salvatore Favuzza, L. Mineo, Favuzza, S., Ippolito, M.G., Massaro, F., Mineo, L., Musca, R., and Zizzo, G.
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Sicily–Italy doubling connection ,Control and Optimization ,EUMENA (European Union-Middle East and North Africa) ,020209 energy ,New energy ,Energy Engineering and Power Technology ,Context (language use) ,02 engineering and technology ,lcsh:Technology ,transmission system ,RES integration ,Mediterranean sea ,Order (exchange) ,Sicily–Malta interconnection line ,0202 electrical engineering, electronic engineering, information engineering ,Regional science ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Mediterranean interconnection ,lcsh:T ,Renewable Energy, Sustainability and the Environment ,business.industry ,Transmission system ,Grid ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,Geography ,Position (finance) ,Electricity ,business ,transmission systems ,Energy (miscellaneous) - Abstract
The present paper deals with the new opportunities deriving from the interconnections of the European and North African transmission systems. In order to achieve a single international market for electricity exchanges, interconnections between networks in different countries are becoming increasingly important and Sicily, for its geographical position in the middle of the Mediterranean Sea, will undoubtedly play an important role as an electrical bridge between Europe and the North Africa in the near future. The paper, presenting the actual electro-energetic context of Tunisia, reports the new important interconnection already realized in South Italy (in particular in Sicily) and describe the planned interventions of the near future. In the second part of the paper, using the Neplan software package (10.7.4, NEPLAN AG, CH-8700 Kü, snacht (ZH), Switzerland) for simulating the grid, some load flows are carried out to check some operating scenarios (2020 and 2025) considering energy flows from north to south, avoiding system violations.
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- 2018
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10. New High Voltage Interconnections with Islands in the Mediterranean Sea: Malta and Sicily. Analysis of the Effects on Renewable Energy Sources Integration and Benefits for the Electricity Market
- Author
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L. Mineo, Calogero Cassaro, Mariano Giuseppe Ippolito, Fabio Massaro, Salvatore Favuzza, Ippolito M.G., Favuzza S., Massaro F., Mineo L., and Cassaro C.
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Control and Optimization ,Sicily-Malta interconnection line ,Sicily-Italy doubling connection ,Renewable Energy Sources (RES) integration ,power tracing technique ,020209 energy ,Energy Engineering and Power Technology ,02 engineering and technology ,01 natural sciences ,lcsh:Technology ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Electricity market ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,010302 applied physics ,Flexibility (engineering) ,Interconnection ,Renewable Energy, Sustainability and the Environment ,business.industry ,lcsh:T ,High voltage ,language.human_language ,Renewable energy ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,language ,Environmental science ,Mainland ,Electricity ,Telecommunications ,business ,Sicilian ,Energy (miscellaneous) - Abstract
The present paper shows the benefits coming from the operation of the recent electrical high voltage (HV) interconnections between Sicily, Malta and mainland Italy. These new interconnections allow zonal prices of electricity considerably lower than in the past, ensuring greater flexibility to the system and a better integration of Renewable Energy Sources (RES). After briefly illustrating the two high-voltage electrical systems (Sicily and Malta), and having provided a description of the interconnection cable with Malta and its protection devices, the authors hypothesized two modes of operation (Sicily-Malta system islanded or interconnected to the rest of Europe). For the first case (islanded) some simulations are performed through the use of an electric network model realized in the Neplan® environment, and for the second case an analysis of one year real data was made. The results of the simulation, thanks to the use of a power flow tracing method, show that this new interconnection between the two islands (Sicily and Malta) allows an important improvement in the integration and dispatching of the power generated by RES of the Sicilian territory, better operation of traditional Sicilian generation units, lower electricity zonal prices and a significant reduction in emissions from obsolete fuel oil thermal units located in Malta.
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- 2018
11. Building Automation and Control Systems and Electrical Distribution Grids: A Study on the Effects of Loads Control Logics on Power Losses and Peaks
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Gaetano Zizzo, Salvatore Favuzza, Mariano Giuseppe Ippolito, Giuseppe Schillaci, Fabio Massaro, Rossano Musca, Eleonora Riva Sanseverino, Favuzza S., Ippolito M.G., Massaro F., Musca R., Schillaci G., Riva Sanseverino E., and Zizzo G.
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Control and Optimization ,Computer science ,020209 energy ,Energy Engineering and Power Technology ,demand-side management (DSM) ,Power losse ,02 engineering and technology ,Load profile ,lcsh:Technology ,Demand response ,Building Automation ,Building Automation and Control (BAC) ,Thermal ,0202 electrical engineering, electronic engineering, information engineering ,power losses ,demand-side management ,Electrical and Electronic Engineering ,Engineering (miscellaneous) ,Building automation ,Renewable Energy, Sustainability and the Environment ,business.industry ,lcsh:T ,Control (BAC) ,Energy consumption ,Automation ,Reliability engineering ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,demand response ,Control system ,load control ,Electricity ,business ,Low voltage ,Energy (miscellaneous) - Abstract
Growing home comfort is causing increasing energy consumption in residential buildings and a consequent stress in urban medium and low voltage distribution networks. Therefore, distribution system operators are obliged to manage problems related to the reliability of the electricity system and, above all, they must consider investments for enhancing the electrical infrastructure. The purpose of this paper is to assess how the reduction of building electricity consumption and the modification of the building load profile, due to load automation, combined with suitable load control programs, can improve network reliability and distribution efficiency. This paper proposes an extensive study on this issue, considering various operating scenarios with four load control programs with different purposes, the presence/absence of local generation connected to the buildings and different external thermal conditions. The study also highlights how different climatic conditions can influence the effects of the load control logics.
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- 2018
12. HTLS Conductors: A Way to Optimize RES Generation and to Improve the Competitiveness of the Electrical Market—A Case Study in Sicily
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Mariano Giuseppe Ippolito, Fabio Massaro, Calogero Cassaro, Ippolito M.G., Massaro F., and Cassaro C.
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Computer engineering. Computer hardware ,General Computer Science ,Exploit ,Article Subject ,Computer science ,business.industry ,020209 energy ,Overhead (engineering) ,02 engineering and technology ,Reliability engineering ,Renewable energy ,Thermal resistant conductor, HTLS conductor, Electrical market ,Settore ING-IND/33 - Sistemi Elettrici Per L'Energia ,TK7885-7895 ,Electric power transmission ,Electricity generation ,Transmission (telecommunications) ,Signal Processing ,0202 electrical engineering, electronic engineering, information engineering ,Electricity ,Electrical and Electronic Engineering ,Resilience (network) ,business - Abstract
Stringent environmental constraints make more difficult to identify new energy corridors and build new power lines. The increase in the generation of electricity from renewable energy sources (RESs) makes the operation of electrical systems increasingly difficult in some areas. The transmission system operators (TSOs), in Italy Terna, are forced to exploit the existing overhead transmission lines, increasing the possibility of dispatching energy, in particular RES, optimizing the transmission capacity. Therefore, after a brief presentation of the Sicilian electricity system and a brief description of high-temperature low-sag (HTLS) conductors, a case study is presented. It is shown how it is possible to optimize the dispatching from renewable sources and, finally, it is demonstrated how the use of HTLS conductor can contribute, together with other actions taken by the TSO, to the decrease of the zonal price of electricity, to the creation of a market with fewer constraints and to new operating conditions that increase the resilience of the electricity system in case of disturbances.
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- 2018
- Full Text
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