Common and Differential Mode Harmonic Analyses of Modulations for Three-Phase Three-Level Converter With Unbalanced DC Link Voltages

被引：0
作者：
Ding, Wenlong [1 ]
Ming, Lei [1 ]
Yin, Changqing [1 ]
Loh, Poh Chiang [1 ]
Xu, Yinghui [2 ]
Duan, Bin [2 ]
Zhang, Chenghui [2 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Peoples R China
[2] Shandong Univ, Sch Control Sci & Engn, Jinan, Peoples R China
来源：
2020 CHINESE AUTOMATION CONGRESS (CAC 2020) | 2020年
关键词：
Three-level converter; harmonic analysis; common-mode voltage; differential-mode voltage; PD method; APOD method; BALANCE;
D O I：
10.1109/CAC51589.2020.9327153
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents comprehensive harmonic analyses of sinusoidal pulse width modulations (SPWM) for the three-phase three-level converter with unbalanced dc-link voltages. An analytical model is established to calculate the precise harmonics of common-mode (CM) and differentialmode (DM) voltages. With the developed model, the impacts of unbalanced dc-link voltages on harmonic characteristics for the phase disposition (PD) method and alternative phase opposition disposition (APOD) method are studied. The analysis provides guidelines for the balance control based on the harmonic mechanism with unbalanced dc-link voltages. The analysis is confirmed by extensive simulation and experimental studies.
引用
收藏
页码：3053 / 3057
页数：5
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