An Improved Control Strategy for Doubly-fed Wind Power Generation Based on Inverse Svstem Theorv

摘要：

Vector control method is the common way in traditional Double-fed Wind Generation, but it is more dependent on motor parameters, once the operational situation changes, the effect of the system control will be affected. This paper proposes a control method based on inverse system, through the inverse system theory, the state equation of doublyfed induction motor (DFIG) and power converter, to construct the structure of the DFIG wind power generation inverse control system. Finally, the corresponding wind power generation closed-loop control system is established. When the system operates in variable speed constant frequency (VSCF) and the phase voltage drops, the simulation results show that the control system can keep the DC link voltage steady, maintain unity power factor, achieve the decoupling of the active and reactive power. It proves that this control method used in VSCF wind power generation is feasible.

关键词： DFIG Vector control Inverse system VSCF

作者: Jiyong Zhang Guohai Liu

作者单位: Electrical Engineering Institute. Jiangsu University,Zhenjiang Jiangsu, China Energy &Power Engineer Electrical Engineering Institute. Jiangsu University,Zhenjiang Jiangsu, China

会议类型: 国际会议

会议名称: 2011 International Conference on Electronics and Optoelectronics(2011电子学与光电子学国际会议 ICEOE 2011)

会议地点: 大连

会议语种:英文

页码: 1098-1101

在线出版日期: 2011-07-29（万方平台首次上网日期，不代表论文的发表时间）