一种谐振直流环逆变控制电路的仿真研究

作者：彭 庆，张德华 日期：2007-12-27/span> 浏览：3949 查看PDF文档

一种谐振直流环逆变控制电路的仿真研究
彭 庆，张德华
(浙江大学 电气工程系，浙江 杭州 310027)

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。
关键词：谐振直流环节;逆变器;仿真;频率分析

Simulated research on a control circuit of resonant DCLink inverter
PENG Qing, ZHANG Dehua
（Department of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract: The output waves of traditional resonant DCLink 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 dualloop control circuit of resonant DCLink 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.
Key words: resonant DCLink; inverter; simulation; frequency analysis

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