Title :
High-efficiency soft-switching PWM DC-DC converter for electric vehicle battery chargers
Author :
Min-Kwon Yang ; Hyoung-Sup Cho ; Seung-Jae Lee ; Woo-Young Choi
Author_Institution :
Div. of Electron. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
This paper proposes a high-efficiency softswitching dc-dc converter for electric vehicle battery chargers. All power switches achieve zero-voltage switching with the complementary pulsewidth modulation. Power switches can be actively-clamped with no increase in conduction losses. All output diodes achieve zero-current switching without any voltage oscillations. Thus, the proposed converter has a high-efficiency and compact structure. A charging strategy is also suggested. The battery charging controller is digitally implemented. The performance of the proposed converter is verified by experimental results for a 2.0 kW prototype circuit.
Keywords :
DC-DC power convertors; PWM power convertors; battery chargers; battery powered vehicles; switching convertors; zero voltage switching; PWM DC-DC converter; battery charging controller; complementary pulsewidth modulation; conduction loss; electric vehicle battery chargers; high-efficiency soft-switching converter; power 2.0 kW; power switch; zero voltage switching; Batteries; Oscillators; Prototypes; Pulse width modulation; RLC circuits; Voltage control; Zero voltage switching; DC-DC converter; Electric vehicle (EV); battery charger; softswitching;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2013 IEEE
Conference_Location :
Denver, CO
DOI :
10.1109/ECCE.2013.6646826
