电力系统保护与控制Issue(16)：57-64,8.
双馈感应风力发电系统低电压穿越控制策略研究及其分析
Low voltage ride through control strategy and its analysis of doubly fed induction generator
赵霞 1王倩 1邵彬 1何美华1
作者信息
- 1. 西南交通大学电气工程学院，四川 成都 610031
- 折叠
摘要
Abstract
Based on double fed induction generator (DFIG) wind power system model, by analyzing the grid voltage drop under various operational performance, this paper proposes the use of Active Crowbar Circuit and DC-chopper in order to protect the converter and avoid DC-link over-voltages during grid serious faults. Crowbar circuit being into again makes the demand of the reactive power increase during the recovery of the grid voltage; grid-side converter (GSC) in the range of power capacity, a new control strategy for GSC reactive power is proposed to achieve the reactive power support to help the recovery of the grid faults and the stator voltage. Simulation system model is built by using PSCAD/EMTDC and the validity of the proposed control strategy is proved. The control strategy meets low voltage ride through (LVRT) of DFIG, and effectively improves the reliability of the DFIG operation.关键词
双馈电机/电压跌落/Active Crowbar/直流侧卸荷电路/无功支持Key words
DFIG/voltage dips/Active Crowbar/DC-chopper circuit/reactive support分类
信息技术与安全科学引用本文复制引用
赵霞,王倩,邵彬,何美华..双馈感应风力发电系统低电压穿越控制策略研究及其分析[J].电力系统保护与控制,2015,(16):57-64,8.
