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A Novel Hybrid Five-Level Voltage-Source Converter Based on T-Type Topology for High-Efficiency Applications.

Authors :
Xu, Shuai
Zhang, Jianzhong
Hu, Xing
Jiang, Yongjiang
Source :
IEEE Transactions on Industry Applications; Sep/Oct2017, Vol. 53 Issue 5, p4730-4743, 14p
Publication Year :
2017

Abstract

A novel hybrid five-level voltage-source converter for high-efficiency applications is investigated in this paper. Compared with traditional multilevel converters, this hybrid multilevel converter generates desired staircase voltage levels with a reduced number of power devices and isolated drivers at higher voltage levels. It has redundant switching state combinations in hybrid multilevel converter, which makes it easy to balance flying capacitor voltages and realize fault-tolerant operation. A voltage-balancing control strategy based on switching state redundancies is presented for the hybrid multilevel converter to generate desired levels and also keep voltage balance of flying capacitors at the same time. The performance of the hybrid multilevel converter under various operating conditions is investigated in MATLAB/Simulink. The effectiveness of the proposed hybrid multilevel converter is validated by experiment results. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00939994
Volume :
53
Issue :
5
Database :
Complementary Index
Journal :
IEEE Transactions on Industry Applications
Publication Type :
Academic Journal
Accession number :
125381707
Full Text :
https://doi.org/10.1109/TIA.2017.2713762