Design and Implementation of a Residual Capacity Estimator for Lead-Acid Batteries

摘要：

This paper proposes a residual capacity estimator with higher accuracy for lead-acid batteries. The calculation method is using different discharge capacity rate of a battery in different discharge current to calculate state of charge. Therefore, Curve Fitting state of charge estimation has the ability of revising value of state of charge with the changing of lode, and this improves Coulomb state of charge estimation. Thus more reliable state of charge estimation value can be obtained when battery discharge in heavy loads and the proposed method is more suitable for different discharge lode. The control core of state of charge estimation of the plan is the Digital Signal Processor (TMS320F240). The DSP gets the battery of discharge current and voltage signal, in order to estimate state of charge and discharge end respectively

关键词： Curve Fitting State of Charge Estimation Coulomb State of Charge Estimation

作者: Chih-chiang HUA Tzung-you TASI Chih-wei CHUANG Wen-bin SHR

作者单位: National Yunlin University of Science and Technology, Taiwan

会议类型: 国际会议

会议名称: 2nd IEEE Conference on Industrial Electronics and Applications(ICIEA 2007)(第二届IEEE工业电子与应用国际会议)

会议地点: 哈尔滨

会议语种:英文

在线出版日期: 2007-05-23（万方平台首次上网日期，不代表论文的发表时间）