DocumentCode :
3507993
Title :
The use of equalizing converters for serial charging of long battery strings
Author :
Hopkins, D.C. ; Mosling, C.R. ; Hung, S.T.
Author_Institution :
Dept. of Electr. Eng., Auburn Univ., AL, USA
fYear :
1991
fDate :
10-15 Mar 1991
Firstpage :
493
Lastpage :
498
Abstract :
The authors present a technique that uses DC-DC converters to shunt energy from cells (or groups of cells) while the entire string of cells is being charged. The amount of charging of each cell can be controlled by varying the amount of diverted energy. The technique does not exclude the use of different capacity cells within the string nor exclude the use of different types of energy storage elements. If a cell fails, the converter across it will automatically regulate the voltage across the failed cell during charging and allow current to flow in the whole battery string. For energy discharge, the converters across the functional cells can be used in the traditional fashion with their outputs in parallel while the open-cell voltage is still maintained
Keywords :
battery chargers; power convertors; DC-DC converters; energy discharge; open-cell voltage; serial charging; Aging; Battery charge measurement; Circuits; DC-DC power converters; Degradation; Electric vehicles; Manufacturing; Power supplies; Threshold voltage; Uninterruptible power systems;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1991. APEC '91. Conference Proceedings, 1991., Sixth Annual
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-0024-6
Type :
conf
DOI :
10.1109/APEC.1991.146221
Filename :
146221
Link To Document :
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