A Comparative research of two modulation strategies widely applied in Modular Multilevel Converter

Author

Jin Liu ; Ping Wang ; Zixin Li ; Yaohua Li

Author_Institution

Key Lab. of Power Electron. & Electr.Drive, Inst. of Electr. Eng., Beijing, China

fYear

2013

fDate

26-29 Oct. 2013

Firstpage

1683

Lastpage

1687

Abstract

The Modular Multilevel Converter (MMC) has become a very important topology in many applications for its unique advantages. Modulation strategy is very important to MMC converter because it will affect the output characteristics and switching loss. In this paper, two widely applied modulation strategies, submodule unified pulse width modulated (SUPWM) and carrier-phase-shifted PWM (CPSPWM), are analyzed and compared. Simulations are conducted in different number of submodules and different frequencies. The results will provide a useful consultation for selecting the appropriate modulation strategy in different applications.

Keywords

PWM power convertors; CPSPWM; MMC converter; SUPWM; applied modulation strategies; carrier-phase-shifted PWM; modular multilevel converter; modulation strategies; output characteristics; submodule unified pulse width modulated; switching loss; topology; Capacitors; Frequency modulation; Insulated gate bipolar transistors; Switching loss; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2013 International Conference on

Conference_Location

Busan

Print_ISBN

978-1-4799-1446-3

Type

conf

DOI

10.1109/ICEMS.2013.6713333

Filename

6713333