高压电器2025，Vol.61Issue(4)：230-238,9.DOI:10.13296/j.1001-1609.hva.2025.04.026
基于振动信号的油浸式铁心电抗器典型缺陷诊断方法研究
Research on Typical Defect Diagnosis Method of Oil-immersed Iron Core Reactor Based on Vibration Signal
摘要
Abstract
During the normal operation of the oil-immersed iron core reactor,its vibration is caused by the winding stressing,the magnetostrictive effect of the iron core and the Maxwell force between the iron cores.The axial and radi-al vibration response distributions of the reactor under three loads are analyzed by constructing a three-dimensional model of the magnetic-solid coupling of the reactor.On this basis,a reactor vibration test platform is set up to obtain the vibration signal of the reactor housing.The vibration signal of the housing is collected by adjusting the axial com-pression force of the iron core.It is known by extracting the vibration spectrum characteristic under various mechani-cal states that with the reduction of the axial compression force of the reactor core,the vibration signal spectrum of the housing is changed.Three kinds of Bayesian optimized network classifier models are adopted to identify the me-chanical state under different compression forces,and the accuracy rate has reached 94.5%,94.2%and 95.0%respec-tively,and the high efficiency of the spectrum feature in combination with the optimization algorithm for the looseness judgement of the reactor core is verified further.关键词
铁心电抗器/磁—固耦合/振动响应/频谱特征Key words
core reactor/magnetic-solid coupling/vibration response/spectral features引用本文复制引用
孟令明,高树国,张玉焜,柳树青,汲胜昌,田源,张宁..基于振动信号的油浸式铁心电抗器典型缺陷诊断方法研究[J].高压电器,2025,61(4):230-238,9.基金项目
国家电网有限公司总部科技项目资助(5200-201913054A-0-0-00). Project Supported by State Grid Corporation Limited Headquarters Technology Project(5200-201913054A-0-0-00). （5200-201913054A-0-0-00）
