Research on the Stability of the Three-Phase-Voltage-Source PWM Rectifier

摘要：

The stability of the three-phase-voltage-source PWM rectifier which works in rectifying and regenerative operating modes is studied in this paper. Through small signal perturbation analysis near the static state work point,the linear mathematics model is established.With the closed loop transfer function it would be found that a changeful pole which can move with the load exists in the system and the dynamic performance would change with the load.When the PWM rectifier works on regenerative operating mode the changeful pole would become an unstable pole. The system stability caused by the gain of the PI regulator is discussed,and it is pointed out that the proportion gain can not get too large in rectifying operating mode and too small in regenerative operating mode,so the design of the control parameter for the PWM rectifier must be comprehensive.

关键词： PWM Rectifier Stability Control Root locus Transfer function

作者: Yanping Zhong Yaqjun Chen

作者单位: Air Force Radar Academy,Wuhan 430019 China

会议类型: 国际会议

会议名称: 2009 International Conference on Information,Electronic and Computer Science(2009 国际信息、电子与计算机工程学术会议)

会议地点: 青岛

会议语种:英文

页码: 265-268

在线出版日期: 2009-11-21（万方平台首次上网日期，不代表论文的发表时间）