辅助谐振换流极逆变器仿真研究

Simulation Research on Auxiliary Resonant Commutated Pole Inverter

随着交流电机调速技术的发展,对逆变器的性能要求也越来越高,但传统的逆变器仍然采用硬开关工作方式,存在着较大的电磁干扰和开关损耗。软开关逆变器可以降低功率开关管开关过程中的电压、电流变化率,从而达到抑制电磁干扰的目的。本文对一种新型的辅助谐振换流极逆变器(Auxiliary Resonant Commutated Pole Inverter,AECPI)进行了理论分析和仿真研究,对该电路结构的优、缺点进行了详细的阐述,分析了对软开关性能产生影响的因素。

With the development of motor drive technique,the requirement for inverter s performance gets higher and higher.But the traditional inverters work in hard-switching mode,as a result,the severe EMI and switching losses come into being.The soft switching inverter can reduce the changing ratio during the switching period,so the EMI gets restrained.This paper demonstrates a novel auxiliary resonant commutated pole inverter,and shows some merits and drawbacks of this topology.The theoretic analysis and simulatio...