Title :
A PWM modulation method for five-leg inverter
Author :
Yang Mei ; Lipeng Wang ; Lina Wang ; Jia Liu
Author_Institution :
Power Electron. & Motor Driving Eng. Center, North China Univ. of Technol., Beijing, China
Abstract :
A five-leg inverter can be used to feed two motors, which reduce the system cost and realize fault-tolerant operation of dual motor drive system. In this paper, a PWM modulation method is developed for the five-leg inverter, in which the control period is divided into two parts and the traditional Space Vector PWM (SVPWM) technology is adopted in both parts. This PWM method is suitable to be implemented by digital signal processor (DSP). Through experiments, the developed method is proved to be effective, which realizes the independent control of the two motors in the drive system.
Keywords :
PWM invertors; fault tolerance; motor drives; DSP; PWM modulation method; SVPWM technology; control period; digital signal processor; dual motor drive system; fault-tolerant operation; five-leg inverter; independent control; space vector PWM technology; Induction motor drives; Inverters; Pulse width modulation; Vectors; Voltage control;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
