Title :
Study on a hybrid PWM method under low switching frequency
Author :
Kekang, Wei ; Zheng, Trillion Q. ; Wang, Ran ; Chenchen, Wang
Author_Institution :
Sch. of Electr. Eng., Beijing Jiaotong Univ., Beijing, China
Abstract :
This paper presents a hybrid PWM method under a low switching frequency based on SVPWM and SHEPWM, which use asynchronous carrier modulation SVPWM at low frequency, and SHEPWM at high frequency, a square wave after rated conditions. The transitive strategy is proposed to realize smooth transition of individual modes including SVPWM, SHEPWM and square wave. Simulation and experimental results confirm this hybrid modulation method and their transition is reasonable and corrected.
Keywords :
asynchronous machines; pulse width modulation; SHEPWM; SVPWM; asynchronous carrier modulation; hybrid PWM method; hybrid modulation method; low switching frequency; square wave; Frequency modulation; Harmonic analysis; Inverters; Space vector pulse width modulation; Switches;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6073535
