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所属单位：自动化学院

发表刊物：2017 IEEE TRANSPORTATION ELECTRIFICATION CONFERENCE AND EXPO, ASIA-PACIFIC (ITEC ASIA-PACIFIC)

关键字：Lithium-ion batteries open circuit voltage (OCV) battery management system (BMS) relaxation time equivalent circuit model (ECM) incremental OCV test

摘要：The open circuit voltage (OCV) of a battery cell is critical in many aspects of the battery management. However, the conventional OCV test methods are time consuming due to the need for a long relaxation period to approach the equilibrium state. In this paper, a rapid OCV test method is proposed to obtain the static OCV by employing two couples of current excitations, with parameters predetermined based on a second order equivalent circuit model (ECM). Due to the current excitations imposed after the SoC variation step, the polarization voltage shows faster convergence speed in comparison to the conventional self-rest method. Furthermore, the accuracy and the rapidity of the proposed method are verified through simulation and experiment results.

是否译文：否

发表时间：2017-01-01

合写作者：Yang, Jufeng,Xia, Bing,Mi, Chris

通讯作者：Mi, Chris,黄文新