摘要
在专家打分的基础上,研究了如何通过灰度理论与层次分析法AHP(analytic hierarchy process)得到专家权重和影响锂离子电池一致性的因素权重。首先基于灰色关联度计算权重的理论,对因子做灰色关联分析,当不存在唯一参考序列时,将每一序列本身既当做比较序列又当做参考序列,得到对应的灰色自关联矩阵,通过计算特征值与特征向量,得到专家权重;然后采用专家打分的方式采集影响电池一致性因素的评定分数,通过指标两两比较的差值法确定AHP的判断矩阵,从而得到因素权重;最后通过加权算数均值法得到影响锂电池一致性的综合指标权重。
On the basis of expert scoring, the way of using grey theory and analytic hierarchy process(AHP) to obtain the weights of experts and factors that influence the consistency of lithium-ion battery is studied in this paper. First,the grey correlation analysis of factors is conducted based on the theory of calculating the weight based on grey relational grade. When there is no unique reference sequence, each sequence itself is used both as a comparison sequence and as a reference sequence, thus the corresponding grey self-correlation matrix is obtained. By calculating the eigenvalues and eigenvectors, the weights of experts are obtained. Then, the scores of factors affecting the consistency of the battery are collected by expert scoring. The judgment matrix of AHP is determined by comparing the differences in every two indexes, and the weights of factors are obtained. Finally, the weighted arithmetic mean method is used to obtain the comprehensive index weight that affects the consistency of the lithium battery.
引文
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