基于改进AHP的电磁能装备运行状态评估方法

An evaluation method of electromagnetic energy equipment operation state based on improved AHP

为及时准确地评估电磁能装备的运行状态,提出了基于改进层次分析法(analytic hierarchy process,AHP)的电磁能装备运行状态评估方法。首先,以电磁能装备的数据特点和组成结构为依据,提出了评估指标获取方法和评估指标体系构建方法;然后,针对AHP在评估电磁能装备运行状态时受主观因素影响较大且无法适用于系统非线性变权重需求的缺陷,利用熵权法对AHP所得的主观权重进行客观修正,减少了主观因素对指标权重的影响,并依据评估指标偏离正常值的程度定义一种动态变权机制,以动态修正指标权重;最后,基于电磁能装备中的先进阻拦装置开展评估实验。研究结果表明:相对于传统的AHP,所提改进方法的评估精度大幅提升,能够有效反映电磁能装备的真实运行状态,具有较好的可行性和工程实用价值。

To timely and accurately evaluate the operation status of electromagnetic energy equipment,an operation state evaluation method of electromagnetic energy equipment based on the improved analytic hierachy process(AHP)was proposed.First of all,based on the data characteristics and composition structure of electromagnetic energy equipment,the evaluation index acquisition method and evaluation index system construction method were proposed.And then,considering the defect that AHP is greatly affected by subjective factors when evaluating the operation state of electromagnetic energy equipment and that it cannot be applied to the non-linear variable weight demand of the system,the entropy weight method was used to objectively modify the AHP′s subjective weight and to reduce the influence of subjective factors on the index weight.Furthermore,according to the degree of deviation of the evaluation index from the normal value,a dynamic variable weight mechanism was defined to dynamically modify the index weight.Finally,an evaluation experiment was carried out based on the advanced arresting gear in the electromagnetic energy equipment.The results of study show that compared with the traditional AHP,the improved method can greatly improve the accuracy of evaluation,and can effectively reflect the real operation state of the electromagnetic energy equipment,which has strong feasibility and engineering practical value.