| 基于工作电压的动力电池剩余容量动态估算 |
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| 引用本文： | 李蓓,叶玮琼,王耀南,陈正龙,王映林. 基于工作电压的动力电池剩余容量动态估算[J]. 变流技术与电力牵引, 2008, 0(4): 46-50 |
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| 作者姓名： | 李蓓 叶玮琼 王耀南 陈正龙 王映林 |
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| 作者单位： | [1]湖南工业大学冶金学院信息工程系,湖南株洲412000 [2]湖南大学电气与信息工程学院,湖南长沙410082 |
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| 摘 要： | 以单体蓄电池为研究对象，为解决电动汽车动力电池在工作状态下的剩余容量（SOC）进行实时估算的难题，提出了一种新的动力电池剩余容量估算方法。通过外接一个处于工作状态下电池周期性的恒定电流负载，测得一系列的电池工作电压，这些工作电压采用阶段斜率的计算方法求电池该时刻的剩余时间，从而推算出电池的SOC。证明了动态工作点折算到静态工作点的可行性。该方法的相对误差最大不超过7％，通过软件可实施对温度、老化等因素的补偿。误差分析结果表明，该方法误差小，测量精度高。
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| 关 键 词： | 工作电压 动力电池 剩余容量 动态估算 |
SOC Estimation of Traction-Battery for Electric Vehicle Using Terminal Voltage |
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| LI Bei,,YE Wei-qiong,WANG Yao-nan,CHEN Zheng-long,WANG Ying-lin. SOC Estimation of Traction-Battery for Electric Vehicle Using Terminal Voltage[J]. Converter Technology & Electric Traction, 2008, 0(4): 46-50 |
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| Authors: | LI Bei YE Wei-qiong WANG Yao-nan CHEN Zheng-long WANG Ying-lin |
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| Affiliation: | LI Bei1,2,YE Wei-qiong1,WANG Yao-nan2,CHEN Zheng-long2,WANG Ying-lin1(1.Hunan University of Technology,school of metallurgical science Department of Information Technology,Zhuzhou,Hunan 412000,China,2.Hunan University,College of Electrical , Information Engineering,Changsha,Hunan 410082,China) |
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| Abstract: | Taking battery cell as the research object, a dynamic state -of -charge (SOC) estimation for traction -battery is presented tosolve the problems of SOC real-time calculating for traction battery of electric vehicle in running state. By supplying a constant current load forthe lead-acid batteries periodically, multiple terminal voltages can be measured. Therefore, the surplus time of the battery at the moment willbe calculated with slop calculation, and then SOC is achieved. The feasibility of dynamic workin... |
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| Keywords: | terminal voltage traction-battery state-of-charge dynamic estimation |
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