ZVZCS双极性高频环节逆变器的分析研究

Research on ZVZCS Double Polarities High frequency Link Inverter

本文提出并分析研究了ZVZCS双极性高频环节逆变器的控制策略及工作原理。采用双载波双极性移相控制,并借助输出滤波电感电流极性选择,该逆变器解决了高频环节逆变器同有的电压过冲问题,以及换流重叠期间周波变换器的环流现象,实现了逆变桥功率器件的ZVS开关和周波变换器功率器件的ZCS开关,输出滤波电感前端得到的是双极性SPWM电压波。仿真与试验结果证实了这种逆变器的可行性。

In this paper.a novel control strategy and the operation principle are presenred and analyzed for ZVZCS double polarities high frequency Link inverter.By adopting double polarities phase-shifting control with double carrier waveforms and polarity selection of the output filtering inductance current,the surge voltage and the surge current of the inverter are overcome,the ZVS switching of power devices in the inverting bridge and ZCS switching of power devices in the cycloconverter are received,and double polarities SPWM voltage waveform is gotten in front of output filtering indectance,Simulation and test results show the feasibility of the inverter.