Coordinated Control Strategy for a DFIG Generation System Under Unbalanced Grid Voltage Conditions Based on Direct Resonant Regulation
Wang Jianliang1,2,Zhang Yihuang1,Cheng Peng3,Nian Heng3
1. Beijing Jiaotong University Beijing 100044 China; 2. CSR Zhuzhou Electric Motor Co. Ltd． Zhuzhou 412001 China; 3. Zheiang University Hangzhou 310027 China
Abstract：In order to develop the operation performance of the overall DFIG generation system, taking into account the GSC’s auxiliary control, a coordinated control strategy with the direct resonant regulation has been presented in this paper. The selected electromagnetic quantities according to the target are used as the controlled variables for the resonant regulator in the positive synchronous reference frame so as to approach the commanded voltages. As a result, the rotor and GSC currents can be regulated without sequential separations and reference calculations. Besides, the proposed method can enhance the adaptability to generator parameters variations. Simulated and experiment results demonstrate the availability of the proposed direct resonant control methods for grid- and rotor-side converter.
王建良,张奕黄,程鹏,年珩. 电网电压不平衡时基于直接谐振调节的双馈感应风电系统联合控制策略[J]. 电工技术学报, 2015, 30(12): 204-212.
Wang Jianliang,Zhang Yihuang,Cheng Peng,Nian Heng. Coordinated Control Strategy for a DFIG Generation System Under Unbalanced Grid Voltage Conditions Based on Direct Resonant Regulation. Transactions of China Electrotechnical Society, 2015, 30(12): 204-212.
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2015, Vol. 30 
