电动汽车电池组连接松脱故障诊断
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摘要
提出一种基于相关系数法进行连接松脱故障诊断的算法,通过计算相邻单体电池电压采样数列的相关系数进行连接松脱故障诊断,结合数学推导和模型仿真,对算法的灵敏度、有效性、适用性和通用性作出分析。试验结果表明,该算法能准确及时地对电池组不同类型的连接松脱故障进行报警和定位且无硬件冗余,具有完全的通用性和适用性,且满足车载应用对实时性的要求,可在实车电池管理系统中应用。
This paper presents an algorithm for loose connection in battery pack based on the correlation coefficient.By calculating the correlation coefficient of sampling series of adjoining battery cell voltage, loose connection fault analysis is conducted, and with the aid of mathematical derivation and model simulation, the sensitivity, effectiveness, applicability and generality of the algorithm are analyzed. The experiment results indicate that the algorithm can accurately and timely alarm and locate different loose connection faults of battery pack without hardware redundancy. With generality and applicability, the algorithm fully meets the real-time requirements of automotive applications and can be applied in the vehicle battery management system.
This paper presents an algorithm for loose connection in battery pack based on the correlation coefficient.By calculating the correlation coefficient of sampling series of adjoining battery cell voltage, loose connection fault analysis is conducted, and with the aid of mathematical derivation and model simulation, the sensitivity, effectiveness, applicability and generality of the algorithm are analyzed. The experiment results indicate that the algorithm can accurately and timely alarm and locate different loose connection faults of battery pack without hardware redundancy. With generality and applicability, the algorithm fully meets the real-time requirements of automotive applications and can be applied in the vehicle battery management system.
引文
[1]唐溪浩,马骁,邱旦峰,等.电动汽车电池管理系统研究进展[J].电源技术, 2018, 42(2):308-311.
[2] Offer G J, Yufit V, Howey D A, et al. Module Design and Fault Diagnosis in Electric Vehicle Batteries[J]. Journal of Power Sources, 2012, 206:383-392.
[3] Zheng Y, Han X, Lu L, et al. Lithium Ion Battery Pack Power Fade Fault Identification Based on Shannon Entropy in Electric Vehicles[J]. Journal of Power Sources, 2013, 223(1):136-146.
[4] Wang Q, Ping P, Zhao X, et al. Thermal Runaway Caused Fire and Explosion of Lithium Ion Battery[J]. Journal of Power Sources, 2012, 208(24):210-224.
[5]施一新,杨林,杨坤.电动汽车高压电连接电阻故障测试系统开发[J].汽车技术, 2016(8):48-52.
[6]韩冰海,王东梅,李世云.一种基于直流内阻的电池组连接可靠性的检测方法[J].电源技术, 2017, 41(7):981-983.
[7]徐佳宁,梁栋滨,魏国,等.串联电池组接触电阻故障诊断分析[J].电工技术学报, 2017, 32(18):106-112.
[8]张晓琴,刘玲.一种面向粗糙集的相关系数计算方法[J].河南科学, 2017(12):1901-1906.
[9]苏杭.基于大数据背景的相关系数[J].电子技术与软件工程, 2018(7):182.
[10] Ménard L, Fontès G, Astier S. Dynamic Energy Model of a Lithium-Ion Battery[J]. Mathematics&Computers in Simulation, 2014, 81(2):327-339.
[11]王铭,李建军,吴扞,等.锂离子电池模型研究进展[J].电源技术, 2011(7):862-865.
[12] Xia B, Shang Y, Nguyen T, et al. A Correlation Based Fault Detection Method for Short Circuits in Battery Packs[J].Journal of Power Sources, 2017, 337:1-10.
[13]罗新闻,刘卫则,陶炳全.速腾轿车亏电故障诊断与排除[J].汽车技术, 2009(7):59-61.
[2] Offer G J, Yufit V, Howey D A, et al. Module Design and Fault Diagnosis in Electric Vehicle Batteries[J]. Journal of Power Sources, 2012, 206:383-392.
[3] Zheng Y, Han X, Lu L, et al. Lithium Ion Battery Pack Power Fade Fault Identification Based on Shannon Entropy in Electric Vehicles[J]. Journal of Power Sources, 2013, 223(1):136-146.
[4] Wang Q, Ping P, Zhao X, et al. Thermal Runaway Caused Fire and Explosion of Lithium Ion Battery[J]. Journal of Power Sources, 2012, 208(24):210-224.
[5]施一新,杨林,杨坤.电动汽车高压电连接电阻故障测试系统开发[J].汽车技术, 2016(8):48-52.
[6]韩冰海,王东梅,李世云.一种基于直流内阻的电池组连接可靠性的检测方法[J].电源技术, 2017, 41(7):981-983.
[7]徐佳宁,梁栋滨,魏国,等.串联电池组接触电阻故障诊断分析[J].电工技术学报, 2017, 32(18):106-112.
[8]张晓琴,刘玲.一种面向粗糙集的相关系数计算方法[J].河南科学, 2017(12):1901-1906.
[9]苏杭.基于大数据背景的相关系数[J].电子技术与软件工程, 2018(7):182.
[10] Ménard L, Fontès G, Astier S. Dynamic Energy Model of a Lithium-Ion Battery[J]. Mathematics&Computers in Simulation, 2014, 81(2):327-339.
[11]王铭,李建军,吴扞,等.锂离子电池模型研究进展[J].电源技术, 2011(7):862-865.
[12] Xia B, Shang Y, Nguyen T, et al. A Correlation Based Fault Detection Method for Short Circuits in Battery Packs[J].Journal of Power Sources, 2017, 337:1-10.
[13]罗新闻,刘卫则,陶炳全.速腾轿车亏电故障诊断与排除[J].汽车技术, 2009(7):59-61.