摘要
由于传统谐振直流环节逆变器只能采用离散脉冲调制方式,输出波形中含有丰富的低次谐波,严重影响输出性能。基于双幅谐振直流环节逆变技术,提出了一种谐振直流环节逆变器的双环控制方案,给出了双环控制方案的工作原理,并通过仿真分析揭示了各工作频率间的关系,谐波成分主要集中于调制频率整数倍周围,随着谐振频率与开关频率比值的增大,低次谐波分量越来越小,并向主同频段转移。
The output waves of traditional resonant DC-Link inverter have too much low frequency harmonic waves which affect the output performance, because it can only use DPM control. Based on the TACRLI technique, a dual-loop control circuit of resonant DC-Link inverter was presented. Working principle was given and relation of different frequency was found by simulation research. Harmonic of harmonic waves was concentrated by times of modulation frequency. As the ration of harmonic frequency increases, low frequency harmonic waves become lower, and transfer to high frequency segment.
出处
《机电工程》
CAS
2007年第11期21-23,共3页
Journal of Mechanical & Electrical Engineering
关键词
谐振直流环节
逆变器
仿真
频率分析
resonant DC-Link
inverter
simulation
frequency analysis
