An Energy-based Method for the Assessment of Battery and Battery-Ultracapacitor Energy Storage Systems in Pulse-load Applications

被引：0
作者：
He, Yiou [1 ]
Zhang, Richard Y. [1 ]
Kassakian, John G. [1 ]
机构：
[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
来源：
2015 THIRTIETH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC 2015) | 2015年
关键词：
Pulse load applications; battery; ultracapacitor; NiMH; LiFePO4; Li-ion; energy measurement; POWER;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A new energy-based method is described for studying the performance of battery or battery-ultracapacitor energy storage systems (ESS) in pulse load applications. The method estimates the total energy available in each ESS from a small number of discrete measurements at different states-of-charge. This considerably reduces experiment time, when compared to slowly depleting the ESS over the course of several hours. To illustrate the use of this method, experiments are performed for nickel-metal hydride (NiMH) batteries and lithium-iron phosphate (LiFePO4) batteries as well as their corresponding battery-ultracapacitor paralleled systems, under various pulse-load profiles and with different ratios of capacitor rating to battery energy. The results show accuracy of the method on the order of 0.5% and the improvements in total energy by incorporating ultracapacitors range from 3% to 47%, depending upon load profiles, experimental conditions and battery-ultracapacitor combinations.
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页码：2412 / 2419
页数：8
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