Title :
The random PWM based bi-directional buck-boost cascade converter for electric vehicles
Author :
Zhang, Xiubin ; Wang, Zheng ; Cheng, Ming ; Ding, Shichuan ; Wang, Wei
Author_Institution :
Sch. of Electr. Eng., Southeast Univ., Nanjing, China
Abstract :
The use of a bi-directional buck-boost cascade converter in electric vehicles allows the suitable control of both motoring and regenerative braking operations. Based on the bidirectional buck-boost cascade converter, the random pulse width modulation (RPWM) scheme is implemented to reduce the conducted electromagnetic interference (EMI). Compared with the fixed frequency PWM (FPWM), the proposed RPWM scheme can suppress the peaky EMI as well as provide the bidirectional power transfer capability. Simulation and experimental results are given to support the validity.
Keywords :
PWM power convertors; electric vehicles; electromagnetic interference; machine control; regenerative braking; road traffic control; EMI; electric vehicle; electromagnetic interference; random PWM based bidirectional buck-boost cascade converter; random pulse width modulation; regenerative braking operation control; regenerative braking operation motoring; Batteries; Bidirectional control; Capacitors; Electromagnetic interference; Inductors; 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.2011.6073802
