基于在线量测数据的低压配电变压器状态评价方法  

A Method for Evaluating the Condition of Low-voltage Distribution Transformers Based onOnline Measurement Data

作　　者：孙文辉 潘明 徐梦潇 朱宁 李国艺 沈剑韬 SUN Wenhui;PAN Ming;XU Mengxiao;ZHU Ning;LI Guoyi;SHEN Jiantao(Shanghai Zhixin Intelligent Electric Co.,Ltd.,Shanghai 200335,China)

机构地区：[1]上海置信电气有限公司,上海200335

出　　处：《电工技术》2025年第5期52-57,共6页Electric Engineering

摘　　要：配电变压器作为配电系统中最为关键的设备,其运行工况决定着用户的电能质量以及配电系统的安全稳定运行,因此对运行中的变压器进行状态评价具有重要意义。提出一种基于在线量测数据的配电变压器状态评价方法,首先确定配电变压器状态评价指标,并通过配电变压器各类传感器、智能表计、相关调研等方式获得各个指标的参量值;其次通过层次分析法对各个指标的权重进行重新分配;最终通过模糊隶属度函数确定各状态评价指标的隶属度并与各指标的对应权重相结合,由此可以得出变压器综合状态评价结果。As the most critical equipment in the distribution system,the operating conditions of distribution transformers determine the power quality of users and the safe and stable operation of the distribution system.Therefore,it is of great significance to evaluate the status of transformers in operation.This article proposes a method for evaluating the status of distribution transformers based on online measurement data.Firstly,a system for evaluating the status of distribution transformers is established,and the numerical values of the status indicators of distribution transformers are obtained through intelligent oil level gauges,intelligent meters,and related research methods;secondly,the weights of each indicator are redistributed through the analytic hierarchy process(AHP);finally,the membership degree of each status evaluation indicator is determined through the fuzzy membership function and combined with the corresponding weights of each indicator,thereby obtaining the comprehensive status evaluation results of the transformer.

关 键 词：配电变压器 在线量测 层次分析法 模糊综合评价 

分 类 号：TM406[电气工程—电器]