中国电气工程学报(英文) ›› 2017, Vol. 3 ›› Issue (1): 51-62.

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  • 发布日期:2019-11-01

Control Strategy of Wind Turbine Based on Permanent Magnet Synchronous Generator and Energy Storage for Stand-Alone Systems

Fujin Deng1,*, Dong Liu2, Zhe Chen2, Peng Su1   

  1. 1.Department of Electrical Engineering, Southeast University, Nanjing, 210096, China;
    2. Department of Energy Technology, Aalborg University, Aalborg, 9220, Denmark
  • Published:2019-11-01
  • Contact: E-mail: fde@et.aau.dk.
  • About author:Fujin Deng received the B. Eng. degree in electrical engineering from China University of Mining and Technology, Jiangsu, China, in 2005, the M. Sc. Degree in electrical engineering from Shanghai Jiao Tong University, Shanghai, China, in 2008, and the Ph. D. degree in energy technology from the Department of Energy Technology, Aalborg University, Aalborg, Denmark, in 2012. From 2013 to 2015, he was a Postdoctoral Researcher with the Department of Energy Technology, Aalborg University, Aalborg, Denmark. From 2015 to 2017, he was an Assistant Professor with the Department of Energy Technology, Aalborg University, Aalborg, Denmark. Since 2017, he joined the School of Electrical Engineering, Southeast University, China, as a Professor. His research interests include wind power generation, high-power conversion, power electronics, DC grid, high-voltage direct-current(HVDC) technology, and offshore wind farm-power systems dynamics. Dong Liu received the B.Eng. degree and M.Sc. degree in electrical engineering from South China University of Technology, Guangdong, China, in 2008 and 2011 respectively. He is currently working toward the Ph. D. degree in the Department of Energy Technology, Aalborg University, Denmark. From 2011 to 2014, he was a R&D Engineer in Emerson Network Power Co., Ltd., Shenzhen, China. His main research interests include renewable energy technology, multilevel converters, and DC/DC converters. Zhe Chen received the B. Eng. and M. Sc. degrees from the Northeast China Institute of Electric Power Engineering, Jilin, China, and the Ph.D. degree from University of Durham, U.K. He is a full Professor with the Department of Energy Technology, Aalborg University, Aalborg, Denmark. He is the Leader of Wind Power System Research Program at the Department of Energy Technology, Aalborg University, and the Danish Principle Investigator for Wind Energy of Sino-Danish Centre for Education and Research. He has led many research projects and has more than 360 publications in his technical field. His research areas are power systems, power electronics, and electric machines, and his main current research interests include wind energy and modern power systems. Dr Chen is an Editor of the IEEE Transactions on Power Systems, an Associate Editor (Renewable Energy) of the IEEE Transactions on Power Electronics, a Fellow of the Institution of Engineering and Technology (London, U.K.), and a Chartered Engineer in the U.K. Peng Su was born in Henan, China, in 1988. He received the B. Sc. and M. E. degrees in electrical engineering from Henan Polytechnic University, Henan, China in 2011 and 2013, respectively. Since 2013, he has been with the School of Electrical Engineering, Southeast University, Nanjing, China, where he is currently working toward the Ph.D. degree. His current research interests include the design and analysis of novel permanentmagnet brushless electrical machines for application in electric vehicles.

Abstract: This paper investigates a variable speed wind turbine based on permanent magnet synchronous generator and a full-scale power converter in a stand-alone system. An energy storage system(ESS) including battery and fuel cell-electrolyzer combination is connected to the DC link of the full-scale power converter through the power electronics interface. Wind is the primary power source of the system, the battery and FC-electrolyzer combination is used as a backup and a long-term storage system to provide or absorb power in the stand-alone system, respectively. In this paper, a control strategy is proposed for the operation of this variable speed wind turbine in a stand-alone system, where the generator-side converter and the ESS operate together to meet the demand of the loads. This control strategy is competent for supporting the variation of the loads or wind speed and limiting the DC-link voltage of the full-scale power converter in a small range. A simulation model of a variable speed wind turbine in a stand-alone system is developed using the simulation tool of PSCAD/EMTDC. The dynamic performance of the stand-alone wind turbine system and the proposed control strategy is assessed and emphasized with the simulation results.

Key words: Variable speed wind turbine (VSWT), permanent magnet synchronous generator (PMSG), stand-alone system, energy storage system (ESS)