Float-Charging Characteristics of Lithium Iron Phosphate Battery Based on Direct-Current Power Supply System in Substation
Publication: Journal of Energy Engineering
Volume 142, Issue 1
Abstract
A battery pack system composed of 32 lithium iron phosphate () batteries and a battery management system (BMS) were assembled according to the actual load demand of a standard 110 kV power substation. Float-charging characteristics of the system were investigated and the results showed that 97% of its initial capacity was retained after a 1-year float-charging test. Even though the voltages of two batteries showed abnormal changes, which indicated that internal changes had occurred after long-term float charging, 94% of the batteries remained stable. All of the results suggested that the use of a lithium iron phosphate battery holds promise as a substitute for the conventional valve-regulated lead-acid (VRLA) battery in a direct-current power supply system.
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Published In
Journal of Energy Engineering
Volume 142 • Issue 1 • March 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Sep 2, 2014
Accepted: Feb 3, 2015
Published online: May 27, 2015
Discussion open until: Oct 27, 2015
Published in print: Mar 1, 2016
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