摘要
为有效评估变压器绝缘老化状态,提出了基于模糊理论的绝缘老化评价模型。首先利用4种不停电检测变压器绝缘状态的方法进行参数测量,然后建立各参数的隶属度函数并将所测参数模糊化后得到4组独立的判据,再利用模糊综合评判法对多种因素进行整合计算并得出最终的诊断结果。最后通过多组实例证明该模型的有效性。
In order to evaluate the insulation aging of transformer effectively,this paper proposes an insula-tion aging evaluation model based on fuzzy theory.Four parameters measured by the method for testing the in-sulation state of the transformer without power failure are passed to establish the membership function of each parameter.After the parameters were blurred,4 groups of independent evidence are obtained.Then the final diagnosis result is obtained by using the fuzzy comprehensive evaluation method.Finally,the validity of this model is proved by multiple examples.
作者
许寅卿
XU Yinqing(Maintenance Company of State Grid Shanghai Municipal Electric Power Company,Shanghai 200063,China)
出处
《浙江电力》
2018年第3期12-16,共5页
Zhejiang Electric Power
关键词
电力变压器
模糊理论
绝缘老化
评判模型
power transformer
fuzzy theory
insulation aging
evaluation model
