Research on Li-ion Battery Charging
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摘要: 均衡与控制是锂离子动力电池充电系统的2项关键技术, 该文详细介绍了均衡与控制在充电系统中所起的作用, 指出了其重要性。在均衡方面, 提出了一种实用的均衡电路, 并对其工作原理进行了分析, 该均衡电路已在实际中采用, 效果良好;在控制方面, 指出了传统PID控制器在锂电池充电中显示出的不足之处, 并针对其不足提出了模糊PID参数自整定的控制方法, 通过与传统PID在不同充电环境下的对比仿真试验表明, 模糊PID参数自整定的控制方法更适合锂离子动力电池充电系统。Abstract: Proper control and charging equalization are two key technologies in Li-ion battery charging system. This paper in troduces the importance of the control and equalization method in Li-ion battery charging process by the Matlab simulation and charging examples, and presents apractical equalization circuit and its principle, which has been applied well in a charging system. As a controller, the traditional proportional integrative derivative(PID) has many shortcomings in Li-ion battery charging process, accordingly, a new control method based on fuzzy PID algorithm is presented. The simulation results proves that the compound fuzzy PID controller is better than the traditional PID controller in Li-ion battery charging system.
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Key words:
- Li-ion battery /
- equalization /
- proportional integrative derivative /
- simulation
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[1] Majima M. Development of Long Life Lithium in Battery for Power Storage[J] . Fuel and Energy Abstracts. Britain: 2002. 43(4): 261. [2] Stephen W. Moore, Peter J. Schneider. A Review of Cell Equalization Methods for LithiumIon and Lithium Polymer Battery Systems[J] . Society of Automotive Engineers. Austral asia: 2001-01-0959. [3] 陈守平, 张军, 方英民, 梁毅. 动力电池组特性分析与均衡管理[M] . 北京: 电池工业出版社, 2003. [4] 戎月莉. 计算机模糊控制原理及应用[M] . 北京: 北京航空航天大学出版社, 1995. -
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