Title :
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
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;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2013 International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4799-1446-3
DOI :
10.1109/ICEMS.2013.6713333
