Circulating Harmonic Currents Prediction for VSI Fed Dual Three-phase IPMSM

被引：0

作者：

Ye, Donglin ^{[1
]}

Li, Jian ^{[1
]}

Qu, Ronghai ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Elect & Elect Engn, State Key Lab Adv Electromagnet Engn & Technol, Wuhan, Peoples R China

来源：

2019 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE (IEMDC) | 2019年

基金：

中国国家自然科学基金;

关键词：

Asymmetrical six-phase machine; circulating harmonic current; prediction; pulse-width modulation; parallel three-phase inverters; CURRENT-RIPPLE PREDICTION; DRIVE;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The circulating harmonic currents of the voltage-source inverter (VSI) fed dual three-phase machines cause copper losses and deteriorate current THDs. Although many works have been made to reduce low-order harmonic currents, the harmonics near the switching frequency have not been addressed, which usually have high amplitude and would cause extra high-frequency vibrations and noise. In order to suppress these harmonic currents, the influence of PWM methods on harmonic currents is needed. This paper provides a circulating harmonic current prediction method of the general six-phase PWM for parallel three-phase inverters. The harmonic currents are analyzed based on the inverter switching state. By decomposing the voltage in a sampling period into an average voltage and voltage ripple, the equation of harmonic voltage ripple is derived, and then the variation rate of harmonic current can be obtained by combing voltage vectors.

引用

页码：1778 / 1783

页数：6

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