Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114813
Dirk Fischer, Robert Rohn, R. Mallwitz
This paper describes features of an SiC-inverter for aviation. It is designed to work in an integrated manner close to the corresponding motor and propeller, sharing a common cooling system and suiting the geometrical conditions within the nacelle. Some design aspects are examined in detail, such as the distributed DC-link, serving the complex geometry of the power modules with very low stray inductance. Control strategies for the symmetrical, six-phase systems are explained. Prototype measurements are given to underline some design aspects. The complete system is designed to fulfill flight requirements and is to be approved in a wind tunnel test environment.
{"title":"Design Approach of an Integrated SiC-Inverter for an Electric Aircraft","authors":"Dirk Fischer, Robert Rohn, R. Mallwitz","doi":"10.1109/ESARS-ITEC57127.2023.10114813","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114813","url":null,"abstract":"This paper describes features of an SiC-inverter for aviation. It is designed to work in an integrated manner close to the corresponding motor and propeller, sharing a common cooling system and suiting the geometrical conditions within the nacelle. Some design aspects are examined in detail, such as the distributed DC-link, serving the complex geometry of the power modules with very low stray inductance. Control strategies for the symmetrical, six-phase systems are explained. Prototype measurements are given to underline some design aspects. The complete system is designed to fulfill flight requirements and is to be approved in a wind tunnel test environment.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79872685","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114843
A. Navarro-Temoche, E. Ibarra, I. Kortabarria, A. Sierra-González, I. Elósegui
In this paper, a flux weakening control strategy based on a vector space decomposition (VSD) model is proposed for asymmetrical dual three-phase interior permanent magnet synchronous machines (IPMSMs). This strategy consists of a voltage magnitude feedback loop which varies the actual speed when enters in flux weakening mode or deviations occur in the electrical parameters of the machine, providing additional robustness. Validity of the proposal is demonstrated by simulations carried out over standardised driving cycles, taking into account parameter mismatches.
{"title":"Normalised flux weakening control technique acting on the actual speed for automotive dual three-phase IPMSMs","authors":"A. Navarro-Temoche, E. Ibarra, I. Kortabarria, A. Sierra-González, I. Elósegui","doi":"10.1109/ESARS-ITEC57127.2023.10114843","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114843","url":null,"abstract":"In this paper, a flux weakening control strategy based on a vector space decomposition (VSD) model is proposed for asymmetrical dual three-phase interior permanent magnet synchronous machines (IPMSMs). This strategy consists of a voltage magnitude feedback loop which varies the actual speed when enters in flux weakening mode or deviations occur in the electrical parameters of the machine, providing additional robustness. Validity of the proposal is demonstrated by simulations carried out over standardised driving cycles, taking into account parameter mismatches.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"141 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80418904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114825
Ahmed A. Ibrahim, T. Caldognetto, D. Biadene, P. Mattavelli
Isolated multi-port converters can interconnect several sources and loads operating at different voltage levels by their ports, with the advantage of galvanic isolation and shared magnetics. However, challenges exist for such converters, due to coupling between the ports, the high number of modulation variables, and, in general, their modeling complexity. This paper discusses the operation of the quad-active bridge (QAB) and presents its improved operation by a model-free four-dimensional ripple correlation control (4D-RCC). First, fundamental component analysis of the converter is carried out for the QAB, driving a decoupling matrix that ensures good closed-loop control performance for each port individually. Then, the 4D-RCC is presented in the case of the QAB to perform an online optimization of the overall converter efficiency. The presented optimization exploits orthogonal signals for the simultaneous adjustment of the duty-cycles of the four ports of the QAB. The validation of the analytical results and the proposed optimization approach are reported by Matlab/Simulink simulations and experimental results considering a converter prototype rated 5kW.
{"title":"Online Loss Reduction of Isolated Bidirectional DC-DC Quad-Active Bridge Converters","authors":"Ahmed A. Ibrahim, T. Caldognetto, D. Biadene, P. Mattavelli","doi":"10.1109/ESARS-ITEC57127.2023.10114825","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114825","url":null,"abstract":"Isolated multi-port converters can interconnect several sources and loads operating at different voltage levels by their ports, with the advantage of galvanic isolation and shared magnetics. However, challenges exist for such converters, due to coupling between the ports, the high number of modulation variables, and, in general, their modeling complexity. This paper discusses the operation of the quad-active bridge (QAB) and presents its improved operation by a model-free four-dimensional ripple correlation control (4D-RCC). First, fundamental component analysis of the converter is carried out for the QAB, driving a decoupling matrix that ensures good closed-loop control performance for each port individually. Then, the 4D-RCC is presented in the case of the QAB to perform an online optimization of the overall converter efficiency. The presented optimization exploits orthogonal signals for the simultaneous adjustment of the duty-cycles of the four ports of the QAB. The validation of the analytical results and the proposed optimization approach are reported by Matlab/Simulink simulations and experimental results considering a converter prototype rated 5kW.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"13 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83102817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114886
E. D. Fazio, Francesco Porpora, M. Di Monaco, G. Tomasso
Cell-to-cell voltage imbalance represents a key issue that limits the usable capacity of a battery pack and increases the risks of possible hazard conditions. Active cell equalization circuits integrated within the architecture of Battery Management Systems (BMSs) strongly contribute in reducing and mitigating the occurrence of imbalance conditions by transferring energy between the most charged cells and the least charged ones. However, the adoption of active equalizers for lithium-ion battery systems is currently limited by incomplete knowledge regarding their actual performances and ranges of operability. In this paper, a cell equalizer based on a Multiple Active Bridge (MAB) converter has been investigated and an experimental prototype has been developed with the aim of quantitatively evaluating its performances considering different imbalance conditions. A Hardware-In-the-Loop approach based on an experimentally-calibrated lithium-ion cell has been implemented in order to correctly compare the performances of the cell equalizer avoiding the impact of thermal gradients and aging conditions among the cells. Experimental results have been carried out and different performance parameters have been defined for the analysis, including the residual voltage imbalance at the end of the equalization process, the energy efficiency and the equalization time.
{"title":"Performance Analysis of a Cell Equalizer based on a Multiple Active Bridge","authors":"E. D. Fazio, Francesco Porpora, M. Di Monaco, G. Tomasso","doi":"10.1109/ESARS-ITEC57127.2023.10114886","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114886","url":null,"abstract":"Cell-to-cell voltage imbalance represents a key issue that limits the usable capacity of a battery pack and increases the risks of possible hazard conditions. Active cell equalization circuits integrated within the architecture of Battery Management Systems (BMSs) strongly contribute in reducing and mitigating the occurrence of imbalance conditions by transferring energy between the most charged cells and the least charged ones. However, the adoption of active equalizers for lithium-ion battery systems is currently limited by incomplete knowledge regarding their actual performances and ranges of operability. In this paper, a cell equalizer based on a Multiple Active Bridge (MAB) converter has been investigated and an experimental prototype has been developed with the aim of quantitatively evaluating its performances considering different imbalance conditions. A Hardware-In-the-Loop approach based on an experimentally-calibrated lithium-ion cell has been implemented in order to correctly compare the performances of the cell equalizer avoiding the impact of thermal gradients and aging conditions among the cells. Experimental results have been carried out and different performance parameters have been defined for the analysis, including the residual voltage imbalance at the end of the equalization process, the energy efficiency and the equalization time.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"10 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89896876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114865
M. A. Qamar, Àlber Filbà-Martínez, S. Busquets-Monge, Wang Kui
Multilevel $pi$ -type and ANPC converters without flying capacitors and clamping diodes are emerging candidates for industrial applications due to their simple structure, less number of devices, and better harmonic performance. However, the voltage balancing difficulty is the key issue of these topologies similar to diode-clamped topology under conventional PWM methods. The unbalance of capacitors voltages may affect the system integrity and stability, and may degrade harmonic performance. To sort out this issue, a simplified virtual vector PWM method to balance the dc-link capacitors voltage of four-level three-phase $pi$ -type and ANPC converters is presented in this paper. Simulation results show how easily and efficiently the proposed method can control the voltage of the capacitors for different modulation index values under balanced and unbalanced loads.
{"title":"Capacitor Voltage Balancing of Four-Level ANPC and π-type Converters Based on Simplified Virtual-VectorPWM","authors":"M. A. Qamar, Àlber Filbà-Martínez, S. Busquets-Monge, Wang Kui","doi":"10.1109/ESARS-ITEC57127.2023.10114865","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114865","url":null,"abstract":"Multilevel $pi$ -type and ANPC converters without flying capacitors and clamping diodes are emerging candidates for industrial applications due to their simple structure, less number of devices, and better harmonic performance. However, the voltage balancing difficulty is the key issue of these topologies similar to diode-clamped topology under conventional PWM methods. The unbalance of capacitors voltages may affect the system integrity and stability, and may degrade harmonic performance. To sort out this issue, a simplified virtual vector PWM method to balance the dc-link capacitors voltage of four-level three-phase $pi$ -type and ANPC converters is presented in this paper. Simulation results show how easily and efficiently the proposed method can control the voltage of the capacitors for different modulation index values under balanced and unbalanced loads.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"75 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86354499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114863
Xingyu Yan, Yiren Zhu, Zhenyu Wang, Tao Yang, S. Bozhko, P. Wheeler
Dual active bridge converter (DAB) is an important power electronics in the DC distribution system of electric aircraft. It is used to convert generated high DC voltage to lower DC voltage, and it can be used between battery and low voltage bus to stabilize the supplied DC power. This paper proposes a modelling and control method for the DAB converter to regulate the load voltage. It uses a simplified method by focusing only on the fundamental component of the square waves of DAB converter. And the controlled object of this method is the square of load voltage which makes it simpler than the conventional method. The simulated results of the controlled system are also presented in the paper.
{"title":"Simplified Modelling and Control of Dual Active Bridge Converter for Future Electrified Aerospace Application","authors":"Xingyu Yan, Yiren Zhu, Zhenyu Wang, Tao Yang, S. Bozhko, P. Wheeler","doi":"10.1109/ESARS-ITEC57127.2023.10114863","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114863","url":null,"abstract":"Dual active bridge converter (DAB) is an important power electronics in the DC distribution system of electric aircraft. It is used to convert generated high DC voltage to lower DC voltage, and it can be used between battery and low voltage bus to stabilize the supplied DC power. This paper proposes a modelling and control method for the DAB converter to regulate the load voltage. It uses a simplified method by focusing only on the fundamental component of the square waves of DAB converter. And the controlled object of this method is the square of load voltage which makes it simpler than the conventional method. The simulated results of the controlled system are also presented in the paper.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"47 4 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82701726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114836
Alessandro Saldarini, Cristiano Colombo, M. Longo, M. Brenna, S. Miraftabzadeh, W. Yaici
In order to improve the current existing water public transport service, this paper aims to electrification of water taxis in Venice, a widely used means of transportation in the lagoon city by tourists. In particular, the section that connects San Marco square to Marco Polo airport, which is the one with the longest distance, is analyzed. Following a brief introduction to landscape water transport and its infrastructure in the city of Venice, this paper presents the modeling of the electric water taxi taking into account the needs and peculiarities of the boat and of the city itself. Subsequently, an agent-based approach using the AnyLogic software tool simulates the round trip, calculating energy consumption and analyzing the state of charge profile.
{"title":"Water Transport Decarbonization: Preliminary Case Study in Venice","authors":"Alessandro Saldarini, Cristiano Colombo, M. Longo, M. Brenna, S. Miraftabzadeh, W. Yaici","doi":"10.1109/ESARS-ITEC57127.2023.10114836","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114836","url":null,"abstract":"In order to improve the current existing water public transport service, this paper aims to electrification of water taxis in Venice, a widely used means of transportation in the lagoon city by tourists. In particular, the section that connects San Marco square to Marco Polo airport, which is the one with the longest distance, is analyzed. Following a brief introduction to landscape water transport and its infrastructure in the city of Venice, this paper presents the modeling of the electric water taxi taking into account the needs and peculiarities of the boat and of the city itself. Subsequently, an agent-based approach using the AnyLogic software tool simulates the round trip, calculating energy consumption and analyzing the state of charge profile.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"29 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85662432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114861
Regis Nibaruta, P. Venugopal, G. Rietveld, V. Havryliuk, T. Soeiro
Battery packs have become a critical component in various applications from portable electronics to electric vehicles. Accurate voltage measurement is essential for effective battery management, ensuring safety and reliability, which is especially important in high-power battery packs that consist of multiple cells connected in series or parallel configurations, such as Electric Vehicles (EVs). This paper explores the voltage measurement topologies, pack configuration principles, and implementation of cell balancing in a lithiumion battery pack. We review the various types of faults that can occur in lithiumion batteries, different voltage sensor placement strategies, and their impact on the accuracy and robustness of voltage measurement. Our results show that proper cell balancing can improve battery performance, reduce the risk of safety incidents, and extend the battery lifespan.
{"title":"An Integrated Approach to Lithium-Ion Battery Cell Management through Accurate Voltage Measurement and Cell Balancing","authors":"Regis Nibaruta, P. Venugopal, G. Rietveld, V. Havryliuk, T. Soeiro","doi":"10.1109/ESARS-ITEC57127.2023.10114861","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114861","url":null,"abstract":"Battery packs have become a critical component in various applications from portable electronics to electric vehicles. Accurate voltage measurement is essential for effective battery management, ensuring safety and reliability, which is especially important in high-power battery packs that consist of multiple cells connected in series or parallel configurations, such as Electric Vehicles (EVs). This paper explores the voltage measurement topologies, pack configuration principles, and implementation of cell balancing in a lithiumion battery pack. We review the various types of faults that can occur in lithiumion batteries, different voltage sensor placement strategies, and their impact on the accuracy and robustness of voltage measurement. Our results show that proper cell balancing can improve battery performance, reduce the risk of safety incidents, and extend the battery lifespan.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"53 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82644058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114908
J. Pomilio, André Faria Hernandes, D. P. Damasceno, M. P. Dias, J. I. Yutaka Ota, Gustavo Ortenzi, Rafael K. Carneiro
This article discusses the occurrence of high-frequency interactions among power electronics converters in dc distribution grids. Dc grids are becoming common also in aircrafts and ships. The main reason is the ease of interconnection of energy sources and storage devices and the fact that the vast majority of electronic loads operate on dc. The analyzed phenomena can occur in dc distribution networks, either in low voltage (usually in airplanes and buildings) or medium voltage (in ships). The interactions depend on the front-end filters that connect the converters to the dc bus, resulting in resonances that, under certain conditions, may coincide with the converters switching frequencies. In such a situation there is an amplification of voltage or current, affecting the voltage along the feeder, resulting in a large circulation of current at high frequency. This is an issue that can affect loads and converters connected to the grid and that is difficult to identify since it occurs in frequencies beyond the frequency range usually identifies by the power quality analyzers. Simulation and experimental results are shown, based on typical converter values used in low voltage dc microgrids.
{"title":"High-Frequency Interactions Among Power Converters in Built-in dc Networks","authors":"J. Pomilio, André Faria Hernandes, D. P. Damasceno, M. P. Dias, J. I. Yutaka Ota, Gustavo Ortenzi, Rafael K. Carneiro","doi":"10.1109/ESARS-ITEC57127.2023.10114908","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114908","url":null,"abstract":"This article discusses the occurrence of high-frequency interactions among power electronics converters in dc distribution grids. Dc grids are becoming common also in aircrafts and ships. The main reason is the ease of interconnection of energy sources and storage devices and the fact that the vast majority of electronic loads operate on dc. The analyzed phenomena can occur in dc distribution networks, either in low voltage (usually in airplanes and buildings) or medium voltage (in ships). The interactions depend on the front-end filters that connect the converters to the dc bus, resulting in resonances that, under certain conditions, may coincide with the converters switching frequencies. In such a situation there is an amplification of voltage or current, affecting the voltage along the feeder, resulting in a large circulation of current at high frequency. This is an issue that can affect loads and converters connected to the grid and that is difficult to identify since it occurs in frequencies beyond the frequency range usually identifies by the power quality analyzers. Simulation and experimental results are shown, based on typical converter values used in low voltage dc microgrids.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"14 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85248944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114844
H. J. Kaleybar, M. Brenna, F. Castelli-Dezza, M. Carmeli
During the last years, implementing the smart grid concept in railway networks has received more attention so experts are working on innovative solutions to increase energy efficiency and decrease air pollution in such a high-consumption system. One of these promising solutions is the integration of renewable energy sources and EV charging stations with existing railway networks. In this paper, the concept of smart hybrid electric railway grid (SHERG) is presented to improve power flow capabilities, and energy efficiency and mitigate power quality issues in existing traditional AC railway networks. Different architectures of SHERG based on joint DC bus are presented and studied for AC railway systems update taking advantage of interfacing static converters. The study can provide a road map and give a general view regarding the modernization and reconstruction of existing railway networks towards smart grid technologies.
{"title":"Smart Hybrid Electric Railway Grids: A Comparative Study of Architectures","authors":"H. J. Kaleybar, M. Brenna, F. Castelli-Dezza, M. Carmeli","doi":"10.1109/ESARS-ITEC57127.2023.10114844","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114844","url":null,"abstract":"During the last years, implementing the smart grid concept in railway networks has received more attention so experts are working on innovative solutions to increase energy efficiency and decrease air pollution in such a high-consumption system. One of these promising solutions is the integration of renewable energy sources and EV charging stations with existing railway networks. In this paper, the concept of smart hybrid electric railway grid (SHERG) is presented to improve power flow capabilities, and energy efficiency and mitigate power quality issues in existing traditional AC railway networks. Different architectures of SHERG based on joint DC bus are presented and studied for AC railway systems update taking advantage of interfacing static converters. The study can provide a road map and give a general view regarding the modernization and reconstruction of existing railway networks towards smart grid technologies.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"25 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83776962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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