标题: 利用修正型扩散电量估测法于锂电池电量估测之研究
A Modified Diffusion Laws Method for Estimating Capacity of the Li-Ion Battery
作者: 叶志恒
Tzu-Heng Yeh
董兰荣
Lan-Rong Dung
电机学院电机产业专班
关键字: 锂电池;修正型扩散电量估测法;电量估测;电池容量恢复;Li-Ion battery;modified diffusion laws;estimating capacity;recovery
公开日期: 2008
摘要: 本论文提出一个适用于各种锂电池电量估测的修正型扩散电量估测法。此方法解决了库伦计量测法在有电池容量恢复(Recovery)不准确之问题;也解决文献中提出之扩散电量估测法在负载上升中也就是无Recovery现象出现时,电量估测准确度不高之问题。此模型的设计为利用最小平方误差法估测出电池最佳的初始容量与电池容量恢复(Recovery)参数后,配合修正型扩散电量估测模型,记录电池输出电压、电流、时间,估测出残余电池容量与时间。最后以库伦计量估测法为实验对象,实验结果证明本文所发展之修正型扩散电量估测法能改善库伦计量估测法无法解决电池容量恢复(Recovery)之缺点外,于电池负载持续上升中也能精确预测电池残余电量。
This thesis presents a Modified Diffusion Laws Method for Estimating Capacity which can be applied in all kinds of Li-Ion battery. The model can solve imprecise problems - that is Recovery - the Coulomb Method brings. Besides, it can solve the inaccuracy of estimating capacity, when load continuously increasing in the Diffusion Laws Method according to the documents. The devises of this model is aimed to estimate the best initial capacity of battery and the best capacity recovery parameters. Then we use the Modified Diffusion Laws Method to record the current condition that battery discharge and to estimate the residual capacity and time of battery. Finally, we set the Coulomb Method as a target, the result of experiment prove that the Modified Diffusion Laws Method for Estimating Capacity which this thesis develop can improve the Coulomb Method cannot efficiently solve the drawback of Recovery and can efficiently predict the residual capacity of batteries when the battery load is consistently increasing.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT009593504
http://hdl.handle.net/11536/40120
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