Proceedings of the 2011 14th European Conference on Power Electronics and Applications最新文献

A review of parallel operation of active power filters in the distributed generation system 分布式发电系统中有源滤波器并联运行的研究进展

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.21427/D75F9N

S. Khadem, M. Basu, M. Conlon

引用次数: 28

Principle and basic characteristics of hybrid variable-magnetic-force motors 混合变磁力电动机的原理和基本特性

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1541/IEEJIAS.131.1112

K. Sakai, H. Hashimoto, S. Kuramochi

{"title":"Principle and basic characteristics of hybrid variable-magnetic-force motors","authors":"K. Sakai, H. Hashimoto, S. Kuramochi","doi":"10.1541/IEEJIAS.131.1112","DOIUrl":"https://doi.org/10.1541/IEEJIAS.131.1112","url":null,"abstract":"Reduction in power consumed by motors is required for energy saving in electrical appliances and electric vehicles. The motors used in such appliances and vehicles operate at variable speeds. For reducing energy consumption of electrical appliances, the flux-weakening current that depresses the voltage at high speed leads to significant copper and core losses. Therefore, we have developed a new technique for controlling the magnetic force of a permanent magnet on the basis of the load or speed of the motor. In this paper, we propose a novel motor that can vary the magnetic flux of permanent magnets and clarify the principle and basic characteristics of the motor. Our motor has a permanent magnet magnetized by magnetizing coils of the stator. The results show that the motor can vary magnetic flux linkage from 37% to 100% and produce high torque. In addition, when positive field current flow in the magnetizing coils as a field coil, maximum torque increases by 25 %. Also, the induced voltage can decrease to 0 V by negative field current. The results of our analysis prove that our novel motor can vary the flux of a permanent magnet on the load and can be used in a variable-speed drive with high performance.","PeriodicalId":320140,"journal":{"name":"Proceedings of the 2011 14th European Conference on Power Electronics and Applications","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115830954","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: 27

First principle and electrical simulation with characterization of GaN/(4H)SiC heterostructure vertical PN power diode GaN/(4H)SiC异质结构垂直PN功率二极管的原理及电学仿真

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1166/jolpe.2013.1243

S. Bose, S. Mazumder

引用次数: 2

Fault ride through capability for solar inverters 太阳能逆变器的故障穿越能力

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2012.11463821

K. Fujii, N. Kanao, T. Yamada, Y. Okuma

引用次数: 36

Development of a modular high-power converter system for battery energy storage systems 用于电池储能系统的模块化大功率变换器系统的研制

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2013.11463844

Stephan Thomas, M. Stieneker, R. D. De Doncker

{"title":"Development of a modular high-power converter system for battery energy storage systems","authors":"Stephan Thomas, M. Stieneker, R. D. De Doncker","doi":"10.1080/09398368.2013.11463844","DOIUrl":"https://doi.org/10.1080/09398368.2013.11463844","url":null,"abstract":"The integration of storage systems into the grid is becoming increasingly important due to the growing amount of volatile power sources. This paper shows how to design a modular battery energy storage system (BESS) for medium voltage grids. Typically, this system is scalable in power rated from 5 MW up to 100 MW with a storage capacity of several hours. Using power electronic building blocks (PEBBs) a converter for dc grids and ac grids can be built. In this paper, the chosen topology for the ac solution is the cascaded cell converter. The focus is to determine the optimum number of levels, the modulation technique to avoid microcycles of the batteries and to present the efficiency. A formula to calculate the parasitic capacitance of lead-acid batteries is shown and verified by measurements, which is important for the design of such a converter system. Moreover, a new charging strategy for LiFePO4 — the chosen battery technology for the proposed storage system — is introduced, which prolongs the battery's life, reduces the charging time and decreases the life cycle cost. The proposed charging strategy and battery technology compared to lead-acid batteries is also economically evaluated.","PeriodicalId":320140,"journal":{"name":"Proceedings of the 2011 14th European Conference on Power Electronics and Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125576612","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: 45

Thermal modeling of a high-speed switched reluctance machine with axial air-gap flow for vacuum cleaners 真空吸尘器用轴向气隙流高速开关磁阻电机的热建模

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2012.11463820

H. Brauer, R. D. De Doncker

{"title":"Thermal modeling of a high-speed switched reluctance machine with axial air-gap flow for vacuum cleaners","authors":"H. Brauer, R. D. De Doncker","doi":"10.1080/09398368.2012.11463820","DOIUrl":"https://doi.org/10.1080/09398368.2012.11463820","url":null,"abstract":"Knowing the precise thermal behavior of switched reluctance machines is important to increase the power density of such machines. Up to now, literature is lacking about how to model in detail switched reluctance machines at high speed with axial air-gap flow. The aim of this paper is to present a model showing the effects of varied air-gap flow on temperature distribution in vacuum cleaner machines with a power of 1kW and 60, 000rpm. First, a simulation model was set up, illustrating various operating points of the drive. Then the results of this model were verified on a test bench. Hereby, a simulation was found for high-speed switched reluctance machines that ideally reflects the temperature distribution within the machine and also depicts the effects of changing axial air-gap flow. In conclusion, this presented model indicates that even at high speed and with reduced air-gap flow, these switched reluctance machines can be operated within established temperature limits. Ultimately, this model is very good for predicting the thermal behavior of similar switched reluctance machines with air-gap flow.","PeriodicalId":320140,"journal":{"name":"Proceedings of the 2011 14th European Conference on Power Electronics and Applications","volume":"21 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132602828","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: 10

Operation and control of VSC-HVDC multiterminal grids for offshore wind 海上风电用VSC-HVDC多终端电网运行与控制

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2013.11463851

A. Egea-Àlvarez, A. Junyent-Ferré, O. Gomis‐Bellmunt, Jun Liang, J. Ekanayake, N. Jenkins

引用次数: 28

Fault tolerant operation of power converter with cascaded cells 级联单元功率变换器的容错操作

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2013.11463842

F. Dijkhuizen, S. Norrga

引用次数: 25

Connection and disconnection transients for micro-grids under unbalance load condition 负载不平衡条件下微电网的连接与断开瞬变

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2014.11463875

J. Rocabert, G. Azevedo, I. Candela, F. Blaabjerg, P. Rodríguez

引用次数: 13

High performance stationary frame AC current regulation incorporating transport delay compensation 包含传输延迟补偿的高性能固定框架交流电流调节

Proceedings of the 2011 14th European Conference on Power Electronics and Applications Pub Date : 2011-09-15 DOI: 10.1080/09398368.2012.11463835

B. Mcgrath, S. Parker, D. G. Holmes

引用次数: 24