基于熵权的高压断路器状态模糊评判

为了克服传统的模糊综合评判中主观赋权的局限性,借助于信息工程学中“熵”的概念,根据各评价指标的差异程度来修正权重,建立了一种新的综合评判模型,并将该模型应用到高压断路器状态评估当中。讨论影响高压断路器状态的各种因素,从评判的模糊性入手,运用模糊数学的原理和方法对各因素从理论上进行定量分析。对因素权重的确定,不是单凭主观判断,而是采用熵权系数法进行客观计算。评价对象的固有信息得到了充分利用。不仅避免了以往评价中只强调过程中的某几项少数指标而忽略其它指标。因此,该模型具有更好的有效性和实用性。

Fuzzy evaluation based on entropy weight for condition of high-voltage circuit breakers

In order to overcome the subjective limitation in traditional fuzzy comprehensive,the weight value is modified based on the differential degree of evaluation indices,a new model for comprehensive evaluation-entropy weight comprehensive evaluation model is established by using the concept of"entropy" in information engineering science,and the model is applied to the condition assessment of high-voltage circuit breakers.All kinds of factors which influence the condition of high-voltage circuit breakers are analyzed.From the view of fuzziness on evaluation,rational analysis and discussion in theory are carrided out for each factor by means of principle and way on fuzzy mathematics.The weight of factor is calculated objectively by the method of entropy weight coefficient,not only by subjedtive judgement.And the inherent information of the evaluated subject is used to a full degree.So the drawback of the traditional evaluation can be avoided that only a few indicators of process are emphasized while others are out of consideration.Thus the model is more effective and feasible.