A Generalized Discontinuous PWM based Neutral Point Voltage Balancing Method for Three-Level NPC Voltage Source Inverter with Switching Losses Reduction

被引：0

作者：

Li, Kai ^{[1
]}

Wei, Min ^{[1
]}

Xie, Chuan ^{[1
]}

Deng, Fujin ^{[2
]}

Guerrero, Josep M. ^{[2
]}

Vasquez, Juan C. ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Automat Engn, Chengdu 611731, Peoples R China

[2] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark

来源：

2017 THIRTY SECOND ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2017年

关键词：

discontinuous PWM; three level neutral point clamped inverter; common mode voltage; neutral point voltage balancing; MODULATION; CONTROLLER;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In order to control the neutral point voltage of inverter with discontinuous PWM (DPWM), this paper proposed a generalized discontinuous PWM (GDPWM) based neutral point voltage balancing method for three level neutral point clamped (NPC) voltage source inverter (VSI). Firstly, a triangle carrier based (TCB-GDPWM) is proposed. Secondly, the affection on neutral point voltage for the modulation wave are analyzed. Base on the analysis, a bang-bang control is adept to control the neutral point voltage via changing the polarity of the certain part of the common mode voltage (CMV). Finally, the proposed method is verified by simulation and experiment. The results show that the propose method has good performance at neutral point voltage control and switching losses reduction.

引用

页码：1816 / 1820

页数：5

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