A Novel Real-Time Positive and Negative Sequence Components Detecting Algorithm for PWM Rectifier under Unbalanced Operating Conditions

摘要：

Voltage unbalance in a three-phase system causes performance deterioration of PWM rectifier. Recently, much attention has been paid to the control strategies under such unbalanced operating conditions. However, the detecting of the fundamental positive and negative sequence components with high precision and fast dynamic response is the precondition to guarantee the control effectiveness. In this paper, a novel algorithm for real-time detecting the fundamental positive and negative sequence components has been proposed. Both magnitude and phase angle can be derived by taking advantage of the mathematical relationships among adjacent data in synchronous rotating reference frame. Fast response and high precision enable the proposed method to completely meet the requirements of the unbalance control of PWM rectifier. Simulation results demonstrate the goodness of this algorithm.

作者: Yao CHEN Xinmin JIN Yibin TONG

作者单位: Beijing Jiaotong University, China

会议类型: 国际会议

会议名称: 2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)

会议地点: 哈尔滨

会议语种:英文

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）