Title :
Carrier PWM algorithm in overmodulation range for Multileg Multilevel Inverter
Author :
Van Nho, Nguyen ; Lee, Hong Hee
Author_Institution :
Hochiminh City Univ. of Technol., Ho Chi Minh City
Abstract :
This paper presents a new carrier based overmodulation method in multiphase multilevel inverters for unbalanced DC voltage sources. Two-mode overmodulation in multiphase multilevel inverters is deduced in a similar way as in three-phase two-level inverter. It is different from 3-phase inverter, the overmodulation range in multiphase inverters is larger and therefore it is efficient to utilise this range for applications. The offset voltage can be properly designed for achieving required performance. The method will be demonstrated by simulation results.
Keywords :
PWM invertors; PWM algorithm; multileg multilevel inverter; overmodulation range; three-phase two-level inverter; Cities and towns; Leg; Motor drives; Paper technology; Phase modulation; Pulse width modulation inverters; Space vector pulse width modulation; Topology; Voltage control; Wire;
Conference_Titel :
Power Electronics and Drive Systems, 2007. PEDS '07. 7th International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0645-6
Electronic_ISBN :
978-1-4244-0645-6
DOI :
10.1109/PEDS.2007.4487799
