High-order sliding mode control method for doubly-fed wind power generator under unbalanced grid voltage

被引:0
作者
Zhang H.-Y. [1 ,2 ]
Wang J. [1 ]
机构
[1] Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai
[2] School of Electrical Engineering, Shanghai Electric Institute, Shanghai
来源
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2019年 / 23卷 / 04期
关键词
Doubly fed induction generator; Electric power quality; High-order sliding mode control; Lyapunov function; Unbalanced grid voltage;
D O I
10.15938/j.emc.2019.04.005
中图分类号
学科分类号
摘要
A high-order sliding mode control method was proposed for doubly-fed induction generator (DFIG) under unbalanced grid voltage. Firstly, the strategy of improving electric power quality under constant and variable wind speed was proposed, and six power compensation strategies were proposed to achieve the selective control target. Then the high-order sliding mode control method was utilized to control the output active/reactive power of DFIG. Meanwhile, the super-twisting algorithm was employed for physical realization. In the controller parameter design, the Lyapunov function method was used to select the controller parameters. Subsequently, the effectiveness of the proposed method was verified by experiments, and comparison with the PI based method and the first order sliding mode control based method was conducted. The experimental results verify the effectiveness of the proposed method in improving the power quality and the superiority over the existing methods. © 2019, Harbin University of Science and Technology Publication. All right reserved.
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页码:37 / 48
页数:11
相关论文
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