Title :
Equalization of EV and HEV batteries with a ramp converter
Author :
Gottwald, T. ; Ye, Zhen ; Stuart, T.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Toledo Univ., OH, USA
Abstract :
Valve regulated lead acid (VRLA) batteries used on EVs and HEVs are subject to voltage imbalances which greatly diminish battery lifetime and vehicle range. An equalizer that is implemented with a high frequency, soft switching converter that corrects this imbalance is described here. Experimental results are presented for a pack of 27 batteries.
Keywords :
electric vehicles; power convertors; secondary cells; EV batteries; HEV batteries; battery lifetime; electric vehicles; ramp converter; soft switching converter; valve regulated lead acid batteries; vehicle range; voltage imbalances; Batteries; Battery management systems; Battery powered vehicles; Biology computing; DC-DC power converters; Electrodes; Equalizers; Hybrid electric vehicles; Linear systems; Low voltage; Monitoring; Neural networks; Phased arrays; Rectifiers; Signal processing algorithms; Sun; Valves;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
