Title :
A 10kW 97%-efficiency LLC resonant DC/DC converter with wide range of output voltage for the battery chargers in Plug-in Hybrid Electric Vehicles
Author :
Guo, Wei ; Bai, Hua Kevin ; Szatmari-Voicu, Gyula ; Taylor, Allan ; Patterson, Jeff ; Kane, James
Author_Institution :
Dept. of Electr. & Comput. Eng., Kettering Univ., Flint, MI, USA
Abstract :
Battery chargers of Plug-in Hybrid Electric Vehicles require high efficiency operation. An LLC resonant DC/DC converter is an excellent choice to reach the high efficiency with reduced current stress. In this paper, a CoolMOS based 10kW full-bridge LLC resonant DC/DC converter with >;97% efficiency is designed. CoolMOS model is utilized to analyze the system loss. Experimental results validate that this charger could charge the load at ~97% efficiency @10kW with output voltage varying from 250V to 400V. When output voltage is between 400V and 450V, the experimental efficiency remains above 95%.
Keywords :
DC-DC power convertors; automotive electrics; battery chargers; bridge circuits; hybrid electric vehicles; CoolMOS; LLC resonant DC-DC converter; battery chargers; efficiency 97 percent; full-bridge resonant converter; plug-in hybrid electric vehicles; power 10 kW; voltage 250 V to 450 V; Batteries; Bridge circuits; DC-DC power converters; Hybrid electric vehicles; Iron; Load modeling; MOSFETs; CoolMOS; LLC resonant; battery charger; plug-in hybrid electric vehicles; soft switching;
Conference_Titel :
Transportation Electrification Conference and Expo (ITEC), 2012 IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
978-1-4673-1407-7
Electronic_ISBN :
978-1-4673-1406-0
DOI :
10.1109/ITEC.2012.6243457
