Pub Date : 2023-03-29DOI: 10.1109/ESARS-ITEC57127.2023.10114859
Charbel Zaghrini, G. Khoury, M. Fadel, R. Ghosn, F. Khatounian
Increasing environmental concerns are driving the development of electric vehicles. Permanent Magnet Synchronous Motors (PMSMs) and Electrically Excited Synchronous Motors (EESMs) have been widely sought after for their potential use in these vehicles. This paper presents a comprehensive overview of salient poles rotor EESMs operating areas defined by: Minimum Current Per Torque (minCPT), Field-weakening maximum voltage limit area, Field-weakening maximum current and maximum voltage limit area and Maximum Torque per Voltage (MTPV). The latter are analyzed and showcased in both d-q and torque-speed domains. The minCLPT (Minimum Copper Losses per Torque) novel optimization method, which uses the EESM excitation current as third degree of freedom, is then explored while investigating the impact of applying negative d-axis current results of the latter algorithm. Findings emphasize on the potential benefits of using the EESM excitation current to extend the machine speed range while providing opportunities of experimenting how the optimal reference field current calculated by minCLPT algorithm can affect the forementioned operating areas. The paper provides valuable insight for researchers and engineers working in the field of electric vehicle propulsion systems.
日益增长的环境问题正在推动电动汽车的发展。永磁同步电机(PMSMs)和电励磁同步电机(EESMs)因其在这些车辆中的潜在应用而受到广泛追捧。本文全面概述了凸极转子eesm工作区域的定义:最小电流每转矩(minCPT)，磁场减弱最大电压限制区域，磁场减弱最大电流和最大电压限制区域以及最大扭矩每电压(MTPV)。后者在d-q和转矩-速度域中进行了分析和展示。采用EESM励磁电流作为第三自由度的minCLPT (Minimum Copper Losses per Torque)优化方法，研究了采用负d轴电流对后一种算法的影响。研究结果强调了使用EESM励磁电流扩展机器转速范围的潜在好处，同时提供了实验minCLPT算法计算的最佳参考场电流如何影响上述操作区域的机会。本文为电动汽车推进系统领域的研究人员和工程师提供了有价值的见解。
{"title":"Operating Areas Overview of Electrically Excited Synchronous Motors","authors":"Charbel Zaghrini, G. Khoury, M. Fadel, R. Ghosn, F. Khatounian","doi":"10.1109/ESARS-ITEC57127.2023.10114859","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114859","url":null,"abstract":"Increasing environmental concerns are driving the development of electric vehicles. Permanent Magnet Synchronous Motors (PMSMs) and Electrically Excited Synchronous Motors (EESMs) have been widely sought after for their potential use in these vehicles. This paper presents a comprehensive overview of salient poles rotor EESMs operating areas defined by: Minimum Current Per Torque (minCPT), Field-weakening maximum voltage limit area, Field-weakening maximum current and maximum voltage limit area and Maximum Torque per Voltage (MTPV). The latter are analyzed and showcased in both d-q and torque-speed domains. The minCLPT (Minimum Copper Losses per Torque) novel optimization method, which uses the EESM excitation current as third degree of freedom, is then explored while investigating the impact of applying negative d-axis current results of the latter algorithm. Findings emphasize on the potential benefits of using the EESM excitation current to extend the machine speed range while providing opportunities of experimenting how the optimal reference field current calculated by minCLPT algorithm can affect the forementioned operating areas. The paper provides valuable insight for researchers and engineers working in the field of electric vehicle propulsion systems.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"209 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":"83470867","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-ITEC57127.2023.10114812
J. Prousalidis, F. D’Agostino, Anastasios Manos, D. Bosich
Nowadays, the worldwide implementation of shore-to-ship connection paradigm is hindered by the large variability of requirements on the ships to be powered. In order to solve this issue, a standardized form must be conceived for defining all the characteristics. The paper wants to presents the shore-side electricity (SSE) related information as encoded in an electronically registered ID card (the SSE-ID) of all the ships subjected to cold ironing obligation. As finalized in the IEEE 45.1, the format of SSE-ID is anticipated to facilitate the SSE-connectivity procedures in all the equipped ports.
{"title":"The SSE-ID Card of Ships in the Sustainable Maritime Framework","authors":"J. Prousalidis, F. D’Agostino, Anastasios Manos, D. Bosich","doi":"10.1109/ESARS-ITEC57127.2023.10114812","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114812","url":null,"abstract":"Nowadays, the worldwide implementation of shore-to-ship connection paradigm is hindered by the large variability of requirements on the ships to be powered. In order to solve this issue, a standardized form must be conceived for defining all the characteristics. The paper wants to presents the shore-side electricity (SSE) related information as encoded in an electronically registered ID card (the SSE-ID) of all the ships subjected to cold ironing obligation. As finalized in the IEEE 45.1, the format of SSE-ID is anticipated to facilitate the SSE-connectivity procedures in all the equipped ports.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"18 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":"83726797","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-ITEC57127.2023.10114869
Andre-Philippe Chamaret, D. Frugier, Luis Maria Alonso, Patrick Henry, Jérôme Deon
For a long time, energy consumption during parking of train was not studied because it was considered insignificant versus energy consumption for traction. This paper will present methods and results of a diagnosis made by French railways to analyze this part of energy consumption for different kinds of trains. After a reminder of current energy situation for railways, state of the art of energy consumption for rail vehicle will be presented. Then. three studies will be explained in detail. At the end, different kind of technical solutions will be addressed.
{"title":"Diagnosis of energy consumption during parking of different rail vehicles and evaluation of energy savings solutions","authors":"Andre-Philippe Chamaret, D. Frugier, Luis Maria Alonso, Patrick Henry, Jérôme Deon","doi":"10.1109/ESARS-ITEC57127.2023.10114869","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114869","url":null,"abstract":"For a long time, energy consumption during parking of train was not studied because it was considered insignificant versus energy consumption for traction. This paper will present methods and results of a diagnosis made by French railways to analyze this part of energy consumption for different kinds of trains. After a reminder of current energy situation for railways, state of the art of energy consumption for rail vehicle will be presented. Then. three studies will be explained in detail. At the end, different kind of technical solutions will be addressed.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"21 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86095046","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-ITEC57127.2023.10114883
E. Grunditz, M. Alatalo
Four permanent magnet electric machines for a typical battery electric city bus (BECB) are compared regarding drive cycle energy consumption during 18 official and one logged bus drive cycle. Two machine types are used; an interior permanent magnet synchronous machine (IPMSM) with a two layer distributed winding (DW), and an IPMSM with tooth coil windings (TCW), both with either copper or aluminum winding material. The results are aimed for a life cycle assessment study of electric machines in a typical BECB. A conducted BECB market survey is shortly summarized, and 40 official bus drive cycles are characterized using the chosen bus dimensions.
{"title":"Drive Cycle Evaluation and Consumption of PM Motors for a Typical Battery Electric City Bus","authors":"E. Grunditz, M. Alatalo","doi":"10.1109/ESARS-ITEC57127.2023.10114883","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114883","url":null,"abstract":"Four permanent magnet electric machines for a typical battery electric city bus (BECB) are compared regarding drive cycle energy consumption during 18 official and one logged bus drive cycle. Two machine types are used; an interior permanent magnet synchronous machine (IPMSM) with a two layer distributed winding (DW), and an IPMSM with tooth coil windings (TCW), both with either copper or aluminum winding material. The results are aimed for a life cycle assessment study of electric machines in a typical BECB. A conducted BECB market survey is shortly summarized, and 40 official bus drive cycles are characterized using the chosen bus dimensions.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"41 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89466437","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-ITEC57127.2023.10114849
I. Boldea, F. Marignetti, G. Graber, M. Porzio, L. Fratelli
The scarcity and the consequent price volatility of high-energy permanent magnets is becoming increasingly evident with the dramatic increase in electric and hybrid electric vehicle and rail powertrains and wind generators more extensive penetration. This overview paper summarizes a few key PM-free electric motor power trains R&D recent efforts concerning their design and control, with case-studies performance of practical interest for road and rail vehicle applications.
{"title":"PM-free electric motor powertrains in road and rail transport: an overview","authors":"I. Boldea, F. Marignetti, G. Graber, M. Porzio, L. Fratelli","doi":"10.1109/ESARS-ITEC57127.2023.10114849","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114849","url":null,"abstract":"The scarcity and the consequent price volatility of high-energy permanent magnets is becoming increasingly evident with the dramatic increase in electric and hybrid electric vehicle and rail powertrains and wind generators more extensive penetration. This overview paper summarizes a few key PM-free electric motor power trains R&D recent efforts concerning their design and control, with case-studies performance of practical interest for road and rail vehicle applications.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2023-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89610041","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-ITEC57127.2023.10114827
Nicolò Zatta, Giovanni Bonanno, Andrea Trovò, Simone Visonà, Giovanni Cristofoli, Lorenzo Mozzato, P. Mattavelli, M. Guarnieri
Temperature distribution strongly influences the performance and the life cycles of Lithium-ion batteries-based systems. The capability to forecast the temperature behavior is of crucial importance to correctly tune the Battery Management System (BMS). In this paper, an industrial batteries stack is analyzed, where prismatic lithium-titanate-oxide (LTO) cells are used. First, a 3D computational study is conducted to investigate flow and temperature field when the fans-based air-cooling system is on, showing that the BMS temperature sensing system is largely affected by the position of the thermocouples. Then, a zero-dimension lumped model is built for a fast forecast of the cells' temperature both with fans turn on and off. This model, based on an energy balance differential equation, has been obtained through numerical optimization from the experimental data and does not require any thermal characterization techniques. It can predict with a good agreement the cells' temperature in a quick way.
{"title":"A Thermal Investigation on a Commercial Stack of Prismatic Lithium-Ion Batteries","authors":"Nicolò Zatta, Giovanni Bonanno, Andrea Trovò, Simone Visonà, Giovanni Cristofoli, Lorenzo Mozzato, P. Mattavelli, M. Guarnieri","doi":"10.1109/ESARS-ITEC57127.2023.10114827","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114827","url":null,"abstract":"Temperature distribution strongly influences the performance and the life cycles of Lithium-ion batteries-based systems. The capability to forecast the temperature behavior is of crucial importance to correctly tune the Battery Management System (BMS). In this paper, an industrial batteries stack is analyzed, where prismatic lithium-titanate-oxide (LTO) cells are used. First, a 3D computational study is conducted to investigate flow and temperature field when the fans-based air-cooling system is on, showing that the BMS temperature sensing system is largely affected by the position of the thermocouples. Then, a zero-dimension lumped model is built for a fast forecast of the cells' temperature both with fans turn on and off. This model, based on an energy balance differential equation, has been obtained through numerical optimization from the experimental data and does not require any thermal characterization techniques. It can predict with a good agreement the cells' temperature in a quick way.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"129 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":"89623486","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-ITEC57127.2023.10114882
Biebach Jens, Lorenz Michael, Doerr Alfons, Oswald Alexander
The Torqeedo GmbH supplies integrated electric propulsion solutions since 2005. In 2016 Torqeedo introduced a modular, high-power electric drive system with a dedicated power and energy management for commercial and recreational vessels with a power up to 100kW. Since then, the request in power and energy is continuously increasing. It turns out, that this modular concept with proven, off-the-shelf components in connection with a multi-system approach is suitable for creating a distributed, redundant electric drive system with scaling up to 800kW and 2400kWh energy per drive train.
{"title":"Scaling of hybrid propulsion in respect of power, energy and redundancy","authors":"Biebach Jens, Lorenz Michael, Doerr Alfons, Oswald Alexander","doi":"10.1109/ESARS-ITEC57127.2023.10114882","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114882","url":null,"abstract":"The Torqeedo GmbH supplies integrated electric propulsion solutions since 2005. In 2016 Torqeedo introduced a modular, high-power electric drive system with a dedicated power and energy management for commercial and recreational vessels with a power up to 100kW. Since then, the request in power and energy is continuously increasing. It turns out, that this modular concept with proven, off-the-shelf components in connection with a multi-system approach is suitable for creating a distributed, redundant electric drive system with scaling up to 800kW and 2400kWh energy per drive train.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"16 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":"74024847","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-ITEC57127.2023.10114891
D. Tran, B. Cougo, Gilles Segond, H. Sathler
This paper presents the design procedure to minimize loss and weight of a three-phase 540V/70kVA SiC inverter used to drive a 50kW motor for modern aircraft applications. This design procedure is validated by experimental results. Different SiC power modules are evaluated concerning conduction and switching losses. Efficiency and power density are evaluated for different switching frequencies and PWM (Pulse Width Modulation) techniques, which have a significant impact on the size of DC bus capacitors and cooling system. Precise calculation of losses in the SiC power module is done using the datasheet data as well as data from precise characterization of SiC module. The optimization process to determine the minimum weight of DC bus capacitors and forced air aluminum fin heat sinks is presented in detail. Experimental results on a first assembled converter show small deviations from the estimated losses. However, the total weight of this first version significantly exceeds the calculated one, which leaves a significant path for improvement for the final version of the inverter.
{"title":"Optimal design of a three-phase 540V/70kVA SiC inverter for aircraft applications","authors":"D. Tran, B. Cougo, Gilles Segond, H. Sathler","doi":"10.1109/ESARS-ITEC57127.2023.10114891","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114891","url":null,"abstract":"This paper presents the design procedure to minimize loss and weight of a three-phase 540V/70kVA SiC inverter used to drive a 50kW motor for modern aircraft applications. This design procedure is validated by experimental results. Different SiC power modules are evaluated concerning conduction and switching losses. Efficiency and power density are evaluated for different switching frequencies and PWM (Pulse Width Modulation) techniques, which have a significant impact on the size of DC bus capacitors and cooling system. Precise calculation of losses in the SiC power module is done using the datasheet data as well as data from precise characterization of SiC module. The optimization process to determine the minimum weight of DC bus capacitors and forced air aluminum fin heat sinks is presented in detail. Experimental results on a first assembled converter show small deviations from the estimated losses. However, the total weight of this first version significantly exceeds the calculated one, which leaves a significant path for improvement for the final version of the inverter.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"53 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":"74437027","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-ITEC57127.2023.10114839
Xin Wang, J. Atkin, S. Yeoh, S. Bozhko
With the development of More Electric Aircraft (MEA), novel power distribution systems (PDSs) are required to meet significantly increased electrical load demands onboard. Nevertheless, newer designs must comply with the strict flight operational and safety requirements, while achieving optimisation aims, such as reducing aircraft weight and energy consumption. This paper proposes a two-stage optimisation design method for a novel PDS investigated for MEA. Two optimal power scheduling-based models for minimising power losses and PDS weight are formulated in Mixed-Integer Linear Programming (MILP). The first model considers varying load demands and is solved for all flight stages simultaneously in the first design stage for weight minimisation. The obtained architecture is further optimised for all faulty scenarios and selected typical fight stages simultaneously in the second design stage to improve the PDS reliability. Consequently, a low power loss, light weighted, and fault-tolerant PDS architecture is obtained. A case study is provided to exemplify the improvement in the PDS by adopting the proposed method.
随着多电动飞机(MEA)的发展，需要新型配电系统(pds)来满足机载电力负荷的显著增加。然而，新的设计必须符合严格的飞行操作和安全要求，同时实现优化目标，如减少飞机重量和能源消耗。本文提出了一种针对MEA研究的新型PDS的两阶段优化设计方法。在混合整数线性规划(Mixed-Integer Linear Programming, MILP)中，提出了两个基于功率调度的最优功率损耗和PDS权值最小模型。第一个模型考虑了不同的载荷需求，并在第一个设计阶段同时解决了所有飞行阶段的重量最小化。在第二设计阶段，针对所有故障情况和选择的典型战斗阶段，进一步优化获得的体系结构，以提高PDS的可靠性。因此，获得了低功耗、轻权重和容错的PDS体系结构。通过实例分析，说明了采用该方法对PDS系统的改进效果。
{"title":"Optimised architecture design for an MEA power distribution system considering load profile and fault-tolerance","authors":"Xin Wang, J. Atkin, S. Yeoh, S. Bozhko","doi":"10.1109/ESARS-ITEC57127.2023.10114839","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114839","url":null,"abstract":"With the development of More Electric Aircraft (MEA), novel power distribution systems (PDSs) are required to meet significantly increased electrical load demands onboard. Nevertheless, newer designs must comply with the strict flight operational and safety requirements, while achieving optimisation aims, such as reducing aircraft weight and energy consumption. This paper proposes a two-stage optimisation design method for a novel PDS investigated for MEA. Two optimal power scheduling-based models for minimising power losses and PDS weight are formulated in Mixed-Integer Linear Programming (MILP). The first model considers varying load demands and is solved for all flight stages simultaneously in the first design stage for weight minimisation. The obtained architecture is further optimised for all faulty scenarios and selected typical fight stages simultaneously in the second design stage to improve the PDS reliability. Consequently, a low power loss, light weighted, and fault-tolerant PDS architecture is obtained. A case study is provided to exemplify the improvement in the PDS by adopting the proposed method.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"51 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":"80265386","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-ITEC57127.2023.10114872
D. Flumian, P. Ladoux, J. Fabre
Due to the increase in rail traffic, the 25 kV/50 Hz single-phase substations can cause an unbalance in the phase voltages of the upstream three-phase network. This situation becomes unacceptable for the electricity transmission system operator and the implementation of an unbalance compensator is inevitable. In recent years, several power electronic solutions have been proposed. They are based on Power Electronic Building Blocks (PEBB) which can be connected in series or in parallel in order to achieve the required power level. They offer advantages in terms of modularity and implementation of low voltage power devices which thus improve the global system efficiency. In this paper, the authors present two modular topologies based on the principle of the Steinmetz load-balancing circuit. The first topology relies on cascaded AC choppers and the second one is based on cascaded H-bridge inverters. Analytical calculations and simulations allow a comparative analysis of these two topologies in terms of power semiconductor losses and stored energy in reactive devices.
{"title":"Comparison of Two Cascaded Converter Topologies for Voltage Balancing in AC Railway Substations","authors":"D. Flumian, P. Ladoux, J. Fabre","doi":"10.1109/ESARS-ITEC57127.2023.10114872","DOIUrl":"https://doi.org/10.1109/ESARS-ITEC57127.2023.10114872","url":null,"abstract":"Due to the increase in rail traffic, the 25 kV/50 Hz single-phase substations can cause an unbalance in the phase voltages of the upstream three-phase network. This situation becomes unacceptable for the electricity transmission system operator and the implementation of an unbalance compensator is inevitable. In recent years, several power electronic solutions have been proposed. They are based on Power Electronic Building Blocks (PEBB) which can be connected in series or in parallel in order to achieve the required power level. They offer advantages in terms of modularity and implementation of low voltage power devices which thus improve the global system efficiency. In this paper, the authors present two modular topologies based on the principle of the Steinmetz load-balancing circuit. The first topology relies on cascaded AC choppers and the second one is based on cascaded H-bridge inverters. Analytical calculations and simulations allow a comparative analysis of these two topologies in terms of power semiconductor losses and stored energy in reactive devices.","PeriodicalId":38493,"journal":{"name":"AUS","volume":"1 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":"82335505","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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