A Carrier-Based Common-Mode Voltage Elimination Method for Back-to-Back Three-Level NPC Converters

被引：16
|
作者：
Xu, Xiaona [1 ]
Zheng, Zedong [1 ]
Wang, Kui [1 ]
Yang, Bo [2 ]
Li, Yongdong [1 ]
机构：
[1] Tsinghua Univ, State Key Lab Power Syst, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Xian Univ Technol, Dept Elect Engn, Xian 710048, Peoples R China
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2022年 / 37卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Inverters; Voltage; Rectifiers; Space vector pulse width modulation; Electric potential; Switches; Wind power generation; Back-to-back three-level neutral-point clamped (NPC) converter; common-mode voltage (CMV) elimination; neutral-point potential (NPP) balance; zero-sequence voltage (ZSV); PWM STRATEGY; REDUCTION; MODULATION; VECTOR;
D O I：
10.1109/TPEL.2021.3112697
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：
As the increase of power and voltage level of back-to-back three-level neutral-point clamped (NPC) converters, the high-amplitude and high-frequency common-mode voltage (CMV) has become an urgent problem. To address this, a CMV elimination method based on pulsewidth modulation pulse alignment for back-to-back three-level NPC converter is proposed. On this basis, a neutral-point potential balance method based on zero-sequence voltage (ZSV) is also proposed. In order to decouple the CMV elimination and the neutral-point potential balance, the same optimal ZSV is injected into both the rectifier and inverter sides, and the CMV elimination will not be affected. Simulation and experiments are presented to verify the effectiveness of the proposed method.
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页码：3040 / 3052
页数：13
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