Common-Mode Voltage Elimination for Medium-Voltage Three-Level NPC Inverters Based on an Auxiliary Circuit

被引：5
|
作者：
Le, Quoc Anh [1 ]
Lee, Sangmin [1 ]
Lee, Dong-Choon [1 ]
机构：
[1] Yeungnam Univ, Dept Elect Engn, Gyeongsangbuk, South Korea
来源：
JOURNAL OF POWER ELECTRONICS | 2016年 / 16卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
Active circuit; Common-mode voltage; High-power medium-voltage drives; Neutral-point clamped inverter; Space vector modulation; CLAMPED INVERTER; PWM; CANCELLATION; REDUCTION;
D O I：
10.6113/JPE.2016.16.6.2076
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 paper, a novel scheme to eliminate common-mode voltage (CMV) is proposed for three-level neutral-point clamped (NPC) inverters. In the proposed scheme, a low-power full-bridge converter is utilized to produce compensatory voltage for CMV, which is injected into an NPC inverter through a single-phase four-winding transformer. With the proposed circuit, the power range for applications is not limited, and the maximum modulation index of the inverter is not reduced. These features are suitable for high-power medium-voltage machine drives. The effectiveness of the proposed method is verified by simulation and experimental results.
引用
收藏
页码：2076 / 2084
页数：9
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