基于模糊数学的锂电池组故障诊断

摘要

Recent developments of lithium battery pack make it a very promising alternative power generator in certain applications.However,Due to faults occur as the service time of lithium battery extends or the application conditions change,m any of which are hard to be found,and the relationship between fault phenomenon and cause is obscure,mathematical expression is applied to describe the relationship by means of fuzzy mathematicsto find out the causes of fault.The application indicates that the method applied is in agreem ent w ith others and has high accuracy of diagnosis.%近年来,对锂电池组供电系统的研究有了长远的进步,但由于锂电池组随着使用期限的延长和使用条件的变化会发生多种故障,许多故障现象不易被发现,故障现象与故障原因之间的关系也是模糊不清。因此本文借助模糊数学的方法,把模糊现象与因素之间的关系用数学式进行描述,寻找故障出现的原因。通过实例验证,结果表明,该方法与其他方法有较好的一致性,在故障诊断方面有较高的准确性。