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浙江大学学报(工学版)
JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE)
    
Design of battery-ultracapacitor hybrid energy source applied to pulse current load
WANG Qi1, SUN Yu-kun2, HUANG Yong-hong1
1. School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, 212013, China; 2. School of Electrical Power Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
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Abstract  

The pulse current load had many disadvantages to the cycle life of battery, so we designed a semi-active battery-ultracapacitor hybrid energy source (HES) for powering the pulsed current load. The battery connected with the ultracapacitor in parallel via a DC/DC converter. The control strategy of DC/DC converter was filter power splitting, and the control objective was that battery supplied a nearly constant current, and the value was equal to the average load current, while the ultracapacitor supplied the dynamic component of the load current, so as to reduce the internal loss and prolong the cycle of battery. Comparative studied with single battery, passive structure and semi-active structure HES, the MATLAB 7 simulation results and experimental results indicate that the discharging current of battery in semi-active HES is smoother than the other two structures under pulse current load, and the discharging process of the battery pack is optimized, so the cycle life of battery is obviously prolonged.

Published: 01 August 2015
CLC:  TM   
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WANG Qi, SUN Yu-kun, HUANG Yong-hong. Design of battery-ultracapacitor hybrid energy source applied to pulse current load. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 2015, 49(8): 1537-1543.

URL:

http://www.zjujournals.com/eng/10.3785/j.issn.1008-973X.2015.08.019     OR     http://www.zjujournals.com/eng/Y2015/V49/I8/1537


应用于脉冲电流负载的复合电源设计

 针对脉冲电流负载对蓄电池循环寿命的影响,设计应用于脉冲电流负载的半主动式蓄电池-超级电容器复合电源.超级电容器经过一个DC/DC变换器与蓄电池并联,向脉冲电流负载供电.DC/DC变换器采用滤波器功率分配控制策略,控制目标是：在脉冲电流负载作用的情况下,蓄电池的输出电流尽量平滑,幅值等于负载的平均电流,超级电容器主要承担负载电流中的动态分量,降低蓄电池内部损耗进而延长其循环寿命.对单一电池、被动式结构以及半主动式结构的蓄电池-超级电容器复合电源进行对比分析研究,MATLAB 7下仿真结果以及试验结果均表明：在脉冲电流负载的作用下,半主动式结构的复合电源相比于单一电池和被动式结构,蓄电池的放电电流更平滑,放电过程得到了优化,循环寿命得到延长.

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