电气技术Issue(10)：1-1,2-4,9,5.
电网不对称故障下双馈风力发电机组的LVRT研究
Research on Asymmetrical Faults Ride-through Control of Doubly Fed Induction Generator
摘要
Abstract
Based on the effect of the asymmetric grid voltage on DFIG and the positive and negative sequence mathematical model of DFIG, this paper analyses the structure of output active and reactive power of system under asymmetric grid voltage condition, the positive and negative sequence components separation control and bond with the traditional Crowbar circuit control in the rotor side and the net side is proposed, then we analyses the resistance and switching time of crowbar. Finally, the control strategy is simulated by Matlab, and the simulation results demonstrate that the control strategy can eliminate the effect of the negative sequence current and realizes the asymmetrical faults ride-through.关键词
双馈风力发电机/不对称故障/故障穿越Key words
doubly fed induction generation/asymmetrical faults/fault ride through分类
信息技术与安全科学引用本文复制引用
孟晓凯,韩如成,潘峰..电网不对称故障下双馈风力发电机组的LVRT研究[J].电气技术,2012,(10):1-1,2-4,9,5.
