Title :
High current battery impedance testing for power electronics circuit design
Author :
Zou, Ke ; Nawrocki, Stephen ; Wang, Renxiang ; Wang, Jin
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
In hybrid electric vehicles, the operation of the power electronics circuits usually generates great amount of switching frequency related current ripple. This current ripple would be absorbed by both the battery and the passive components at the front end of the power electronics circuits. The amount of the current ripple that goes into the battery is largely decided by the battery impedance. So, in this paper, a high power converter based impedance tester and an impedance test of nickel-metal hydride (NiMH) battery at power converter switching frequency with high DC offset current are presented. The test method and test platform introduced in this paper can also be used for other different types of batteries, ultra capacitors, fuel cells, and as well as photovoltaic modules.
Keywords :
automotive electronics; battery powered vehicles; battery testers; electric impedance measurement; hybrid electric vehicles; secondary cells; switching convertors; current ripple; high DC offset current; high current battery impedance testing; hybrid electric vehicles; nickel-metal hydride battery; passive components; power converter; power electronics circuit design; switching frequency; Batteries; Circuit synthesis; Circuit testing; Electronic equipment testing; Hybrid electric vehicles; Impedance; Power electronics; Power generation; Switching converters; Switching frequency; HEV; NiMH; battery; current ripple; fuel cell; impedance;
Conference_Titel :
Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE
Conference_Location :
Dearborn, MI
Print_ISBN :
978-1-4244-2600-3
Electronic_ISBN :
978-1-4244-2601-0
DOI :
10.1109/VPPC.2009.5289802