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《Transactions of China Electrotechnical Society》 2015-01
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Equalization Control Strategy and SOC Estimation for LiFePO_4 Battery Pack

Feng Fei;Song Kai;Lu Rengui;Wei Guo;Zhu Chunbo;Harbin Institute of Technology;  
Due to the different temperature gradients and coulomb efficiencies, the remaining capacity between cells will be inconsistencies, which results in the decrease of the capacity of battery pack. In order to improve the performance of battery pack, an equalization control strategy, which is based on t-SOC decision and k-SOC control, is proposed. Moreover, SOC algorithm of battery pack at balanced/unbalanced state is proposed. Finally, the accuracy of SOC estimation has been verified at balanced/unbalanced state. The results indicate that our method can provide effective equalization.
【Fund】: 国家高技术研究发展计划(863计划)(2012AA111003);; 国家电网公司总部科技(黑电科信[2013]384号);; 国家自然科学基金(51277037)资助项目
【CateGory Index】: TM912
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 CAI Yan-feng;ZHANG Yuan-ming;HUANG Jia-jun;LI Wei-shan;LI Xiao-ping;Engineering Research Center of Materials and Technology for Electrochemical Energy Storage (MOE),Key Laboratory of Electrochemical Technology on Energy Storage and Power Generation of Guangdong Higher Education Institutes,and School of Chemistry and Environment,South China Normal University;Advanced Electronics Energy Limited;;Design and application of over temperature protection system for Li-ion battery[J];Chinese Battery Industry;2013-06
2 XU Shouping;HOU Chaoyong;HU Juan;WANG Huanling;China Electric Power Research Institute;;Li-ion Battery Management System for Large-Scale Energy Storage[J];Electric Power Construction;2014-05
3 LI Yin-chuan;MEI Jun;School of Materials Science and Engineering,Southwest University of Science and Technology;;Synthesis and electrochemical behavior of nitrogen doped carbon nano-tubes for lithium sulfur batteries[J];Journal of Safety and Environment;2014-02
4 ZHONG Qi-shui;LI Shu-jun;HUANG Bo;MA Jian-hua;LI Hui;School of Aeronautics and Astronautics,University of Electronic Science and Technology of China;Sinowatt Dongguan Limited;China Zhenhua Electronic Group Co.Ltd.;;Discharge and Temperature Characteristics of Li-Ion Batteries[J];Journal of University of Electronic Science and Technology of China;2014-02
5 XIONG Yong-hua;YANG Yan;LI Hao;HE Yong;WU Min;School of Information Science and Engineering,Central South University;Hunan Engineering Laboratory for Advanced Control and Intelligent Automation;;Multi-Level Bi-Directional Active Equalization Method in Lithium-Ion Power Battery Based on State-of-Charge[J];Acta Electronica Sinica;2014-04
6 WU Wen-xuan;HU Chen;YANG Kai;CHEN Bin;WU Han;Fujian Electric Power Co., Ltd.;China Electric Power Research Institute;Electric Power Research Institute of Fujian Electric Power Co., Ltd.;;Effects of multi-step current charging on properties of LiFePO_4/C battery pack[J];Chinese Journal of Power Sources;2014-08
7 Li Jian;Guan Yibiao;Fu Kai;Su Yuefeng;Bao Liying;Wu Feng;China Electric Power Research Institute;School of Chemical Engineering and the Environment,Beijing Institute of Technology;National Development Center of High Technology Green Materials;;Applications of Carbon Nanotubes and Graphene in the Energy Storage Batteries[J];Progress in Chemistry;2014-07
8 Lei Zhiguo;Zhang Chengning;Li Junqiu;Fan Guangchong;Lin Zhewei;Beijing Institute of Technology,National Engineering Laboratory for Electric Vehicle;School of Mechanical and Electrical Engineering,Fujian Agriculture and Forestry University;Ningde Entry-Exit Inspection and Quarantine Bureau;;A Study on the Low-temperature Performance of Lithium-ion Battery for Electric Vehicles[J];Automotive Engineering;2013-10
9 XU Shouping;HOU Chaoyong;HU Juan;WANG Huanling;YANG Shuili;China Electric Power Research Institute;;Study on Li-Ion Battery Management System of Energy Storage[J];Power System and Clean Energy;2014-05
10 Zhang Yue;Wang Kun;Liu Dafan;CNOOC Tianjin Chemical Research & Design Institute;;Research progress of production technology of LiBF_4 for rechargeable lithium-ion battery[J];Inorganic Chemicals Industry;2014-03
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1 Zhang Xu;Dong Guang-zhong;Zhang Chen-bin;Chen Zong-hai;Department of Automation,University of Science and Technology of China;;Wavelet Neural Network-Based in Modeling Lithium-ion Battery System[A];[C];2014
2 Wang Yu-jie;Zhang Chen-bin;Chen Zong-hai;Department of Automation,University of Science and Technology of China;;A New Method for State-of-charge Estimation for Li-ion Batteries Based on Improved Interpretative Structural Modeling Method[A];[C];2014
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