电流跟踪型PWM逆变器的SVPWM控制策略研究  

Study on SVPWM Control Strategy for Current-tracking PWM Inverter

作　　者：李锋[1] 罗安[1] 汤赐[1] 罗卓伟[1] 

机构地区：[1]湖南大学,湖南长沙410082

出　　处：《电力电子技术》2008年第4期77-79,共3页Power Electronics

摘　　要：通过对电流跟踪型PWM逆变器的研究,提出了一种新型基于误差电流矢量的SVPWM控制策略。该控制策略能在稳态时抑制电流高频开关谐波,在动态时又能保证电流快速响应。通过仿真,从定子磁链轨迹、定子电流谐波含量和电磁转矩脉动3个方面,将新的控制策略与双滞环电流控制策略进行了对比研究。实验结果证明了新控制策略的正确性和有效性。After analyzing the current-tracking PWM inverter,this paper proposes a novel SVPWM control strategy.It has a quick current response in transient state and a low harmonic current content in steady state.The effect of this new control strategy is simulated and compared with traditional double hysteresis control strategy presented in refer- ence.Some simulation and experiment results have done to verify the validity of this new SVPWM control strategy for current-tracking PWM inverter.

关 键 词：逆变器 异步电动机 脉宽调制 控制 矢量 

分 类 号：TM464[电气工程—电器]