标题: 锂电池电量模拟平台之研究
On Discharging Modeling and Capacity Estimation of Li-Ion Battery
作者: 林士人
Shih-Jen Lin
董兰荣
Lan-Rong Dung
电机学院电机与控制学程
关键字: 锂电池;放电平台;Li-Ion Battery;Discharging Modeling
公开日期: 2006
摘要: 从低功率可携式行动电话到高功率消耗的电器产品,其工作原理及工作目的都不尽相同,但有一共通的特性,就是电力来源都是使用可重复使用的二次电池,而高能量密度的锂电池就成为首选。低功率消耗和最大值电池运行时间(Run Time)是可携式的电子产品运用的关键。准确和高效率的取得电池相关特性,电路回路设计者能预测和最佳化电池运行时间去评估效率。本论文提出一个准确,直觉和全面电子电池模型提议和被实施。这个模型模拟电池的动态特征,使用脉冲放电的方法获得非线性的开路电压和内阻值。这个简化的模型忽略自动放电、使用周期, 和温度的作用,被确认用于磷酸铁锂电池和聚合物锂离子电池的实验性资料。提出的模型准确地预言电池I-V 特性。模型可能容易地并且延伸到其它电池和能源管理技术。
High-energy density solid-state lithium-ion batteries are increasingly used in many application from low-power mobile telephones to high-power traction. Low power dissipation and maximum battery runtime are crucial in portable electronics .With accurate and efficient circuit and battery models in hand , circuit designers can predict and optimize battery circuit performance. In this thesis , an accurate, intuitive , and comprehensive electrical battery model is proposed and implemented in a Matlab environment. This model accounts for all dynamic Characteristics of the battery, using pulse discharge manner to get nonlinear open-circuit voltage and impedance of the battery . A simplified model neglecting the effects of self-discharge, cycle number, and temperature, which are non consequential in low-power Li-ion-supplied applications, is validated with experimental data on C-LiFePO4 and polymer Li-ion batteries. Proposed model predicts the battery I–V performance accurately. The model can also be easily extended to other battery and power sourcing technologies.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT009167544
http://hdl.handle.net/11536/63624
显示于类别:Thesis


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