DocumentCode :
1506434
Title :
Design, Testing, and Validation of a Simplified Control Scheme for a Novel Plug-In Hybrid Electric Vehicle Battery Cell Equalizer
Author :
Cassani, Pablo A. ; Williamson, Sheldon S.
Author_Institution :
Power Electron. & Energy Res. (PEER) Group, Concordia Univ., Montreal, QC, Canada
Volume :
57
Issue :
12
fYear :
2010
Firstpage :
3956
Lastpage :
3962
Abstract :
In order to meet cost targets for hybrid electric (HEV), plug-in hybrid electric (PHEV), and all-electric vehicles (EV), an improvement in the battery life cycle and safety is essential. Recently, lithium batteries, in the form of lithium-ion, lithium-polymer, or lithium iron phosphate have been explored. Despite research initiatives, lithium-based batteries have not yet been able to meet steep energy demands, long lifetime, and low cost of vehicular propulsion applications. One practical approach to improve performance is to use power electronics intensive cell voltage equalizers, in conjunction with on-board energy storage devices. The purpose of this paper is to introduce a simplified control scheme, based on open-circuit voltage estimation, for a novel cell equalizer configuration, with the potential to fulfil expectations of the following: 1) low cost; 2) large currents; and 3) high efficiency. Issues, such as the limitations on maximum and minimum cell voltage, noise, and quantization errors, are explored. Finally, a comprehensive comparison between the theoretical test results and practical equalization test results is presented.
Keywords :
battery powered vehicles; equalisers; hybrid electric vehicles; PHEV; battery cell equalizer; battery life cycle; onboard energy storage devices; open-circuit voltage estimation; plug-in hybrid electric vehicle; power electronics; quantization errors; Battery powered vehicles; Costs; Electrical safety; Equalizers; Hybrid electric vehicles; Iron; Lithium; Testing; Vehicle safety; Voltage; Battery; cell equalizers; electric propulsion; electric vehicles (EV); energy storage; power electronics; vehicle electronics; vehicle power systems;
fLanguage :
English
Journal_Title :
Industrial Electronics, IEEE Transactions on
Publisher :
ieee
ISSN :
0278-0046
Type :
jour
DOI :
10.1109/TIE.2010.2050750
Filename :
5475245
Link To Document :
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