TITLE:
A Novel Voltage Balancing Method of Modular Multilevel Converters
AUTHORS:
Zunfang Chu, Zixin Li, Ping Wang, Yaohua Li
KEYWORDS:
Modular Multilevel Converter; Voltage Balancing
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
15,
2013
ABSTRACT: In this paper, a novel voltage balancing method of modular multilevel converters (MMCs) is proposed. This method divides the voltages of sub-module capacitors in each arm into several groups and the voltage balancing is based on these groups. The proposed method can save sorting time greatly compared with the conventional method. Simulation results on a MMC based three-phase inverter show validity of the proposed method.