Improved space vector modulation for neutral-point balancing control in hybrid-switch-based T-type neutral-point-clamped inverters with loss and common-mode voltage reduction

被引：33
作者：
Peng H. [1 ]
Yuan Z. [1 ]
Zhao X. [1 ]
Narayanasamy B. [1 ]
Deshpande A. [1 ]
Emon A.I. [1 ]
Luo F. [1 ]
Chen C. [2 ]
机构：
[1] The Department of Electrical Engineering, University of Arkansas, Fayetteville
[2] The School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Hubei, Wuhan
来源：
CPSS Transactions on Power Electronics and Applications | 2019年 / 4卷 / 04期
关键词：
Electromagnetic interference (EMI); Neutralpoint (NP) voltage balance; Si-SiC hybrid switch; Space vector modulation (SVM); T-type neutral-point-clamped (TNPC) inverter; Wide bandgap (WBG) devices;
D O I：
10.24295/CPSSTPEA.2019.00031
中图分类号：
学科分类号：
摘要：
This paper compares different space vector modulation (SVM) strategies for neutral-point voltage balancing (NPVB) control in three-level (3-L) T-type neutral-point-clamped (TNPC) inverters, and proposes an improved SVM trimmed for NPVB control in hybrid-switch-based 3-L TNPC inverter with the features of loss and common-mode voltage (CMV) reduction. The proposed SVM strategy uses a new principle of small vector selection and vector sequence, and thus, it can balance the neutral point (NP) potential and achieve soft-switching of clamping leg simultaneously. The paper includes detailed analysis for circuit commutation mode, loss breakdown, and common-mode voltage patterns under different operation conditions. The circuit simulations and experiments are carried out in the last part of this paper to validate the proposed SVM strategy. © CPSS Transactions on Power Electronics and Applications 2019. All rights reserved.
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页码：328 / 338
页数：10
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