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2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)最新文献

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Bidirectional MHz-switching Multi-cell Converter for Low-voltage Bufferless Power Electronic Transformer (BLPET) 用于低压无缓冲电力电子变压器(BLPET)的双向mhz开关多单元变换器
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570642
Y. Hayashi, Hongliang Su, K. Takao
{"title":"Bidirectional MHz-switching Multi-cell Converter for Low-voltage Bufferless Power Electronic Transformer (BLPET)","authors":"Y. Hayashi, Hongliang Su, K. Takao","doi":"10.23919/epe21ecceeurope50061.2021.9570642","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570642","url":null,"abstract":"Multicellular buffer-less power electronic transformer (BLPET) has been newly proposed to develop high power density industrial control transformers. The bidirectional and unregulated isolated dc-dc converters of over 1 MHz switching frequency are utilized for the cell converters, and the cell converters are stacked based on the ISOP (Input Series Output Parallel) -IPOS (Input Parallel Output Series) connection topology to realize higher voltage multi-cell PET operated at over 1 MHz switching frequency. The high frequency multi-cell PET enables to reverse the power flow derived from the reactive load instantaneously without the large energy buffer capacitors. An ac 100 V-ac 100 V, 1.35 kVA multi-cell BLPET has been fabricated, and the successful circuit operation under the inductive load condition with the power factor of 0.7 has been verified experimentally. The proposed approach has also demonstrated the potential to realize the volume reduction of 1/14 and the weight saving of 1/40 compared with the commercially available ac 100 V line frequency transformer.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134455199","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}
引用次数: 0
Assessment of the AC/DC converters resilience to DC grids fault by electrothermal modelling 用电热模型评估交直流变流器对直流电网故障的恢复能力
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570599
F. Reymond-Laruina, M. Petit, L. Quéval, D. Hadbi, P. Egrot
{"title":"Assessment of the AC/DC converters resilience to DC grids fault by electrothermal modelling","authors":"F. Reymond-Laruina, M. Petit, L. Quéval, D. Hadbi, P. Egrot","doi":"10.23919/epe21ecceeurope50061.2021.9570599","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570599","url":null,"abstract":"In Low Voltage Direct Current (LVDC) grids DC short circuits can generate very high currents and huge stress for electronic power converters. Assessing their withstanding capabilities is critical. The present paper proposes to couple a thermal and electrical model of an AC/DC converter. This method allows to solve coordination issues between protection selection and converter sizing, as well as ensuring a reliable protection whatever the distance the fault occurs.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133006102","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}
引用次数: 0
A PCB based package with thermal resistance improvement 一种基于PCB的热阻改进封装
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570545
R. Perrin, Johan Le Leslé, Julien Morand, G. Lefèvre
{"title":"A PCB based package with thermal resistance improvement","authors":"R. Perrin, Johan Le Leslé, Julien Morand, G. Lefèvre","doi":"10.23919/epe21ecceeurope50061.2021.9570545","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570545","url":null,"abstract":"This paper describes an improvement technique of the interconnection between a die and top and bottom copper layer in a PCB. By multiplying laser drilling steps, the amount of copper in the interconnection is increased, as well as the heat transfer performances. Therefore, it makes this technique suitable for high power applications. For a fair comparison, various copper densities are proposed and analyzed. Thermal measurements are carried out to benchmark the different solutions and a comparison with analytical calculations is performed to corroborate and define the sensitivity of various parameters for further improvements.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133384892","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}
引用次数: 1
Comparison of Losses in Small Star- and Delta-Connected Permanent Magnet Synchronous Machines 小型星型和三角型永磁同步电机的损耗比较
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570519
S. Decker, C. Rollbühler, M. Brodatzki, F. Rehm, A. Liske, M. Hiller
{"title":"Comparison of Losses in Small Star- and Delta-Connected Permanent Magnet Synchronous Machines","authors":"S. Decker, C. Rollbühler, M. Brodatzki, F. Rehm, A. Liske, M. Hiller","doi":"10.23919/epe21ecceeurope50061.2021.9570519","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570519","url":null,"abstract":"Small electric drives with power from a few hundred watts up to one kilo watt, developed for car actuators, drivetrains, electric bikes or scooters, are nowadays often realized as permanent magnet synchronous machine. For mass production, these machines are designed with delta-connected stator windings. But the influence of the delta-connection is often not investigated. Hence, this paper presents a comparison of copper- and iron-losses for star- and delta-connected windings. Testbench measurements are performed over the whole operating range on a built-up prototype machine, which allows switching between a star- and a delta-connected stator winding system. Precise copper-loss detection, especially including the zero-sequence current in delta-connection, is enabled by additional phase-current sensing. A new approach for determining fundamental iron-losses is introduced.The results show that the overall losses are smaller for delta-connection. The consideration of the individual loss components show that, for this prototype, the zero-sequence current at delta-connection leads to lower iron losses. In this case, the smaller amount of iron-loss outweighs the additional copper-losses. Therefore, the delta-connected machine shows a better efficiency than the star-connected machine.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132138716","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}
引用次数: 1
Modelling and minimization of the parasitic capacitance of ring core inductors 环形铁芯电感寄生电容的建模与最小化
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570557
Florentin Salomez, A. Videt, N. Idir
{"title":"Modelling and minimization of the parasitic capacitance of ring core inductors","authors":"Florentin Salomez, A. Videt, N. Idir","doi":"10.23919/epe21ecceeurope50061.2021.9570557","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570557","url":null,"abstract":"High-frequency static converters requires inductors, common and differential mode chokes with a low equivalent parallel capacitance. To reduce it, this paper proposes first a semi-analytical model of this capacitance for inductors made with coated ring cores of nano-crystalline material. This model is based on 2D finite element method to compute the turn-turn and turn-core parasitic capacitances, taking into account loose windings. Then the total capacitance is computed thanks to an energetic approach. The model is validated against measurements performed on one core for several numbers of turns. Since the model shows that the capacitance is almost linear with the parasitic turn-core capacitance, specific devices are proposed to increase the distance between turns and core and thus decrease the capacitance. It is demonstrated that a small increase in overall volume allows to divide the equivalent parallel capacitance of a common mode choke by almost a factor of three while increasing its overall volume by only 37%.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"493 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132235980","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}
引用次数: 1
Passivity characterization of grid-forming converters with fault-ride through capability 具有穿越故障能力的并网变流器无源特性
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570479
M. Beza, M. Bongiorno, Anant Narula
{"title":"Passivity characterization of grid-forming converters with fault-ride through capability","authors":"M. Beza, M. Bongiorno, Anant Narula","doi":"10.23919/epe21ecceeurope50061.2021.9570479","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570479","url":null,"abstract":"Due to the increase in the use of renewable energy sources (RES) and a corresponding reduction in the conventional energy generation systems, there is nowadays a demand from the power-electronic converters to provide grid-forming properties through proper control of the converter systems. This paper aims at evaluating the impact of various control loops of a grid-forming control strategy equipped with a fault-ride through capability on the passivity properties of the converter system. Through the analysis of the frequency-dependent input admittance of the converter, the main factors affecting the passivity property are identified. A simplified analytical model has been derived in order to propose possible control modifications to enhance system’s passivity at various frequencies of interest and the findings are verified through detailed time-domain simulations and experiments.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133816368","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}
引用次数: 0
Highly Dynamic AC Current Control for Modular Multilevel Converters 模块化多电平变换器的高动态交流电流控制
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570617
D. Braeckle, P. Himmelmann, S. Mersche, L. Stefanski, M. Hiller
{"title":"Highly Dynamic AC Current Control for Modular Multilevel Converters","authors":"D. Braeckle, P. Himmelmann, S. Mersche, L. Stefanski, M. Hiller","doi":"10.23919/epe21ecceeurope50061.2021.9570617","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570617","url":null,"abstract":"A highly robust and dynamic control of the MMC grid currents is necessary to ensure grid stability. Based on a state space modelling of the MMC, a real time capable indirect modelbased control is presented. Measurements with a laboratory setup show the reliability even under disturbed grid conditions.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124440042","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}
引用次数: 0
Design Considerations for High-Voltage High-Current Bi-Directional DC Solid-State Circuit Breaker (SSCB) for Aerospace Applications 航空航天用高压大电流双向直流固态断路器(SSCB)的设计考虑
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570659
A. Fayyaz, Zhenyu Wang, Matias Urrutia Ortiz, Tao Yang, P. Wheeler
{"title":"Design Considerations for High-Voltage High-Current Bi-Directional DC Solid-State Circuit Breaker (SSCB) for Aerospace Applications","authors":"A. Fayyaz, Zhenyu Wang, Matias Urrutia Ortiz, Tao Yang, P. Wheeler","doi":"10.23919/epe21ecceeurope50061.2021.9570659","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570659","url":null,"abstract":"Design of a high-voltage and high-current solid-state circuit breaker (SSCB) for aerospace applications is highly challenging, as the overall system should comply with the most stringent operating environment. In addition, the implemented power semiconductor devices within the SSCB would require excellent thermal performance and efficiency with minimised conduction losses as they always operate during on-state and only break current when there is a fault. The newer generation of the more electric aircraft architecture has a proposed DC link voltage of 2.4 kV (+/- 1.2 kV) which is much higher than the presently used DC link voltage of 540 V (+/- 270 V). The proposed DC SSCB would be rated at 2.4 kV with a nominal current rating of 100 A and would be used for protection and controllability to protect the aircraft’s DC grid transmission network. A brief overview of the different elements of a DC SSCB have been discussed here followed by a discussion about the different viable bi-directional SSCB topology configurations. The thermal simulations were carried out in PLECs, which provide the conduction losses and junction temperature dynamics for different switch (Si devices and SiC MOSFETs) types and topologies. Moreover, different figures of merit such as conduction losses, semiconductor weight, and power density are also discussed.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121379616","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}
引用次数: 1
Charging Strategy for Battery Electric Vehicles with a Battery Modular Multilevel Management (BM3) Converter System using a PR controller 基于PR控制器的电池模块化多级管理(BM3)转换系统的纯电动汽车充电策略
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570669
Johannes Buberger, A. Kersten, Manuel Kuder, A. Singer, Alireza Mashayekh, Julian Estaller, T. Thiringer, Richard Eckerle, T. Weyh
{"title":"Charging Strategy for Battery Electric Vehicles with a Battery Modular Multilevel Management (BM3) Converter System using a PR controller","authors":"Johannes Buberger, A. Kersten, Manuel Kuder, A. Singer, Alireza Mashayekh, Julian Estaller, T. Thiringer, Richard Eckerle, T. Weyh","doi":"10.23919/epe21ecceeurope50061.2021.9570669","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570669","url":null,"abstract":"Modular Multilevel Converters (MMC) with integrated battery packs have been proven to be a viable option for various electric power applications. In novel applications, fully charged battery packs are used to form flexible output voltage waveforms. Nonetheless, the charging of the batteries after the actual usage has previously not been described for MMC based inverters with integrated battery packs. This paper presents an approach of power grid compliant electric vehicle battery charging for Battery Modular Multilevel Management (BM3) converter systems with three-switch modules using a PR controller when directly connected to the AC grid. By using such a system, the conventional battery electric vehicle’s on-board charger and any additional battery balancing circuitry become obsolete. It is demonstrated, that the analyzed approach is able to charge the battery modules with a current total harmonic distortion of less than 5% at any charging power level without the usage of a dedicated grid filter. Furthermore, the power factor angle can be freely adjusted.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128917901","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}
引用次数: 8
Rotor air-friction loss and thermal analysis of high-speed rotor for axial flux PM motor 轴向磁通永磁电机高速转子空气摩擦损耗及热分析
2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe) Pub Date : 2021-09-06 DOI: 10.23919/epe21ecceeurope50061.2021.9570562
Ting Zhu, Yu Wang, Weiwei Geng, Qiang Li
{"title":"Rotor air-friction loss and thermal analysis of high-speed rotor for axial flux PM motor","authors":"Ting Zhu, Yu Wang, Weiwei Geng, Qiang Li","doi":"10.23919/epe21ecceeurope50061.2021.9570562","DOIUrl":"https://doi.org/10.23919/epe21ecceeurope50061.2021.9570562","url":null,"abstract":"This paper focuses on the air-friction loss and its effect on temperature of high-speed disc rotor for an axial flux PM motor with double rotors and sandwiched stator. The air-friction loss and the heat transfer coefficient on the rotor surface at different speed are obtained based on the formula method and Fluid-Solid coupling analysis. The rotor temperature distribution based on the coupling analysis of temperature and fluid field is obtained considering various losses and the impact of heat dissipation of air flowing in the motor cavity. Finally, the variation of rotor disc temperature with the rotating speed is presented for the high speed AFPM motor in this paper. The heat dissipation mechanism of rotor disc for the axial flux PM motor are revealed. Thus, it provides a significant guideline for the cooling structure design and the efficiency enhancement of high speed AFPM motor.","PeriodicalId":236701,"journal":{"name":"2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128822513","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}
引用次数: 1
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