电测与仪表2024，Vol.61Issue(4)：73-80,8.DOI:10.19753/j.issn1001-1390.2024.04.011
基于误差状态模糊分析的电容式电压互感器内绝缘状态评价方法
Internal insulation condition evaluation method for capacitor voltage transformer based on fuzzy analysis of error condition
摘要
Abstract
The internal insulation condition of capacitor voltage transformer(CVT)is a key factor to ensure its measure-ment accuracy and operation stability.However,during the long-term operation,the internal insulation condition of CVT would be degraded by electrical aging,thermal aging and system overvoltage.Aiming at this problem,a data-driven CVT internal insulation condition evolution method is proposed in this paper.This method constructs the feature parameters of error condition based on the electrical connection relationship between the high-voltage CVT groups,and the fuzzy analysis is utilized to match the internal insulation condition and error condition of CVTs according to their correlations,therefore,the degree and type of CVT abnormal internal insulation could be evaluated online.关键词
电容式电压互感器/误差状态/内绝缘状态/模糊分析Key words
capacitor voltage transformer/error condition/internal insulation condition/fuzzy analysis分类
动力与电气工程引用本文复制引用
王欢,王忠东,卢树峰,陆子刚,刘俭..基于误差状态模糊分析的电容式电压互感器内绝缘状态评价方法[J].电测与仪表,2024,61(4):73-80,8.基金项目
国家电网有限公司科技项目(5600-201918181A-0-0-00) （5600-201918181A-0-0-00）
