Title :
The alternative pulse reduction algorithm for three-phase voltage-source inverter
Author :
Takeda, K. ; Ichinose, M. ; Taniguchi, M. ; Miyata, H.
Author_Institution :
Hitachi Res. Lab., Hitachi Ltd., Hitachi, Japan
Abstract :
Our purpose is to reduce the power loss in three-phase voltage-source inverters. We describe a switching algorithm that uses the conventional PWM method in the low modulation range and alternative discontinuous PWM (ADPWM) in the high modulation range to reduce the switching loss in three-phase inverters. The algorithm reduces the switching loss to 40% that of the conventional PWM method. The experimental and simulated results of a prototype are presented. A way of controlling the shapes of voltage applied ADPWM is provided.
Keywords :
PWM invertors; alternative discontinuous PWM; alternative pulse reduction algorithm; low modulation range; three-phase voltage-source inverter; Control systems; Power electronics; Pulse inverters; Pulse modulation; Pulse width modulation; Pulse width modulation inverters; Shape control; Space vector pulse width modulation; Switching loss; Voltage control; PWM inverter; harmonic analysis; over modulation;
Conference_Titel :
Power Electronics Conference (IPEC), 2010 International
Conference_Location :
Sapporo
Print_ISBN :
978-1-4244-5394-8
DOI :
10.1109/IPEC.2010.5543895
