测控技术2017，Vol.36Issue(3)：127-131,5.
基于虚拟电阻的PWM逆变器LC输出滤波器的研究
Research on PWM Inverter LC Output Filter Based on Virtual Resistance
摘要
Abstract
In order to improve the power quality of the PWM inverter output,the filter is generally arranged at the output of the inverter.To solve the problems of the filter oscillation caused by harmonic interference of LC filter and the power loss caused by passive damping resistance,an active damping method is proposed to suppress the oscillation of LC output filter.Through the appropriate control algorithm,LC filter is equivalent to a virtual resistance,which can realize the function of the damping resistance of the LC output filter.Because there is no actual resistive element,the filter does not generate additional losses of electrical energy.Both optimizes the power quality,and improves the efficiency of the inverter.Finally,a simulation experiment carried out in Matlab verifies the effectiveness of the proposed method.关键词
逆变器/LC滤波器/有源阻尼/虚拟电阻Key words
inverter/LC filter/active damping/virtual resistance分类
信息技术与安全科学引用本文复制引用
郑征,高照阳,张展..基于虚拟电阻的PWM逆变器LC输出滤波器的研究[J].测控技术,2017,36(3):127-131,5.基金项目
国家自然科学基金项目(61340015) （61340015）
