An Equivalent Model of Doubly-Fed Wind Generation System
Li Xinran1, Ma Yahui1, Cao Yijia1, Xu Zhenhua2, Liu Weijian1, Hu Longhui1
1. College of Electrical and Information Engineering Hunan University Changsha 410082 China; 2. Electric Power Research Institute of Fujian Electric Power Company Limited Fuzhou 350007 China
Abstract：In order to study the characteristics of generalized integrated load containing distributed doubly-fed wind power generation system in the distribution network, this paper proposes a three-order induction motor comprehensive equivalent model of a doubly-fed wind power generation system. The equivalent circuit, static power characteristics and control strategy of the doubly fed induction generator (DFIG) power generation system are firstly analyzed; on this basis, the structural characteristics and parameter identification of DFIG generation system are discussed. Then, an internal feedback link is introduced in the output equation to improve the equivalent model’s description of dynamic characteristics of DFIG, and the physical meaning of the improved model are explained from mechanic perspective. Finally, the validity of the model is verified through a series of modeling and simulation experiments.
李欣然, 马亚辉, 曹一家, 徐振华, 刘卫健, 户龙辉. 一种双馈式风力发电系统的等效模型[J]. 电工技术学报, 2015, 30(8): 210-217.
Li Xinran, Ma Yahui, Cao Yijia, Xu Zhenhua, Liu Weijian, Hu Longhui. An Equivalent Model of Doubly-Fed Wind Generation System. Transactions of China Electrotechnical Society, 2015, 30(8): 210-217.
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