In order to achieve high-precision monitoring of battery current requirements,this paper proposes a monitoring method for abnormal output current status of lithium iron phosphate batteries in power applications.Using current sen-sors,the output current signal of lithium iron phosphate batteries are collected and converted.Using extended Kalman fil-tering technology,noise reduction and normalization are achieved,thereby correcting signal errors,extracting abnormal current characteristics,and identifying abnormal states.Experimental results have shown that the undetected rate of the proposed method is within 1％.
关键词
磷酸铁锂电池/输出电流/异常状态/扩展卡尔曼滤波技术/归一化/异常特征
Key words
lithium iron phosphate battery/output current/abnormal state/extended Kalman filtering technology/normalization/abnormal characteristic
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