Improved Strategy to Reduce Common-mode Voltage for Matrix Converter

Authors

Weizhang Song, 1. Xi'an University of Technology, Xi'an 710048, China;;2. State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049, China;
Li Xi, 1. Xi'an University of Technology, Xi'an 710048, China;;
Minyuan Li, 1. Xi'an University of Technology, Xi'an 710048, China;;
Yanru Zhong, 1. Xi'an University of Technology, Xi'an 710048, China;;

Abstract

Abstract: Aiming at the large instantaneous common-mode voltage in traditional space vector modulation strategy for two-stage matrix converter (TSMC), on the basis of analyzing the laws of common-mode voltage, an improved modulation strategy to reduce common-mode voltage was proposed. To suppress common-mode voltage effectively, in this strategy, the rectification stage sector was subdivided into twelve sectors from six sectors, according to the sector of the reference current vector and dc-side voltage, the switching points of inverter stage were redefined and reallocated, and zero vector of inverter was selected and distributed reasonably, instantaneous maximum value of common-mode voltage was reduced to 57.7% of the original value in TSMC, so negative effects were suppressed effectively. The feasibility and validity of the proposed method has been verified by simulation results.

Recommended Citation

Song, Weizhang; Xi, Li; Li, Minyuan; and Zhong, Yanru (2020) "Improved Strategy to Reduce Common-mode Voltage for Matrix Converter," Journal of System Simulation: Vol. 27: Iss. 2, Article 6.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol27/iss2/6

First Page

255

Revised Date

2014-08-06

DOI Link

https://doi.org/

Last Page

261

CLC

TP391.9

Recommended Citation

Song Weizhang, Li Xi, Li Minyuan, Zhong Yanru. Improved Strategy to Reduce Common-mode Voltage for Matrix Converter[J]. Journal of System Simulation, 2015, 27(2): 255-261.