An Improved Simplified PWM for Three-Level Neutral Point Clamped Inverter Based on Two-Level Common-Mode Voltage Reduction PWM

被引：43

作者：

Zhang, Xiao ^{[1
]}

Wu, Xiang ^{[1
]}

Geng, Chengfei ^{[1
]}

Ping, Xiuyuan ^{[2
]}

Chen, Shuo ^{[1
]}

Zhang, Hui ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Elect & Power Engn, Xuzhou 221008, Jiangsu, Peoples R China

[2] China Min Drives & Automat CO LTD, Xuzhou 221001, Jiangsu, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2020年 / 35卷 / 10期

关键词：

Switches; Inverters; Space vector pulse width modulation; Voltage control; Software; Common-mode voltage; NPC; PWM; three-level; SPACE-VECTOR PWM; ALGORITHM; SCHEME; 3-PHASE; BALANCE;

D O I：

10.1109/TPEL.2020.2978724

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：

In this article, a common-mode voltage reduction pulsewidth modulation (CMV-R PWM) for three-level neutral point clamped inverter based on the simplification of the three-level space-vector diagram into that of a two-level inverter is studied. By replacing the switching sequence of two-level space-vector PWM with that of CMV-R PWM, the common-mode voltage of the proposed method can be restricted to one-sixth of the dc-link voltage. With the new switching sequences, the neutral-point voltage control by calculating an optimized injected zero-sequence voltage is introduced. Simulation and comparative analysis is given to illustrate the features of the proposed method. The effectiveness and correctness of the proposed method is verified by experiment.

引用

页码：11143 / 11154

页数：12

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