A New Method to IMprove the LVRT of DFIG Based on the Current Compensation

摘要：

Doubly fed induction generator (DFIG)has been widely used as its converter capacity is small.However,the low voltage ride through (LVRT)of DFIG is still a problem.This paper proposed a new LVRT controller based on the philosophy of current compensation.First,base on the Laplace Transform,this paper analyzes the rotor and stator current transients under the grid fault,focused on the influence of the stator DC flux.And then,it proposes a combination control strategy consisting of current compensation control and DC crowbar control improve the LVRT of DFIG.The simulation with the RTDS verified the effectiveness of the proposed control strategy.

作者: CHEN Jinmei XUE Ancheng TIAN Chunguang BI Tianshu GAO Changzheng

作者单位: State Key Laboratory for Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power Research Institute,Jilin Electric Power Company Limited,Changchun 130021,P.R.China

会议类型: 国际会议

会议名称: The 30th Chinese Control Conference(第三十届中国控制会议)

会议地点: 烟台

会议语种:英文

页码: 1-5

在线出版日期: 2011-07-01（万方平台首次上网日期，不代表论文的发表时间）