A Three-phase Voltage-Source PWM Inverter System Characterized by Sinusoidal Output Voltage With Neither Common-mode Voltage nor Normal-mode Voltage-Design and Performance of a Passive EMI Filter-
A Three-phase Voltage-Source PWM Inverter System Characterized by Sinusoidal Output Voltage With Neither Common-mode Voltage nor Normal-mode Voltage-Design and Performance of a Passive EMI Filter-
复制标题
无共模电压和常模电压的正弦输出电压的三相电压源 PWM 逆变系统-无源 EMI 滤波器的设计和性能-
DOI：
10.1541/ieejias.122.845
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发表时间：
2002
影响因子：
--
通讯作者：
H. Hasegawa
中科院分区：
文献类型：
--
作者：
H. Hasegawa
本文研究了一种集成小功率无源EMI滤波器和三相电压源PWM逆变器的逆变系统。电磁干扰滤波器的目的是消除逆变器输出电压中的共模和正模电压。这项研究的动机是基于一个众所周知的事实，即载波或开关频率越高，EMI滤波器越小，越有效。搭建了一个由5kva逆变器、3.7 kw感应电机和专门设计的无源EMI滤波器组成的实验系统，验证了该滤波器的可行性和有效性。因此，实验表明，三相线对线和线对中性的输出电压看起来都是纯正弦的，从电机端看，好像逆变器系统是一个理想的变电压、变频电源。这就彻底解决了逆变器产生的共模和正模电压相关的严重问题。
This paper deals with an inverter system integrating a small-rated passive EMI filter with a three-phase voltage-source PWM inverter. The purpose of the EMI filter is to eliminate both common-mode and normal-mode voltages from the output voltage of the inverter. The motivation of this research is based on the well-known fact that the higher the carrier or switching frequency, the smaller and the more effective the EMI filter. An experimental system consisting of a 5-kVA inverter, a 3.7-kW induction motor, and a specially-designed passive EMI filter was constructed to verify the viability and effectiveness of the EMI filter. As a result, it is shown experimentally that both three-phase line-to-line and line-to-neutral output voltages look purely sinusoidal as if the inverter system were an ideal variable-voltage, variable-frequency power supply when viewed from the motor terminals. This results in completely solving serious issues related to common-mode and normal-mode voltages produced by the inverter.