A Novel Vibration Frequency Response Analysis Method for Mechanical Condition Detection of Converter Transformer Windings

被引：0
|
作者：
Wu, Shuyu [1 ]
Ji, Shengchang [1 ]
Zhang, Yukun [1 ]
Wang, Shichang [1 ]
Liu, Huadong [1 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2024年 / 71卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Harmonic currents; online detection; vibration frequency response analysis (VFRA); winding mechanical fault;
D O I：
10.1109/TIE.2023.3301514
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Converter transformer harmonic currents are both the main cause of winding looseness and effective information for detecting winding looseness fault. In this letter, an online vibration frequency response analysis (VFRA) method is proposed using high amplitude and wide frequency electromagnetic forces generated by harmonic currents. The vibration frequency response function is defined as the ratio of vibration acceleration to current squared. A harmonic loading system is built to simulate the actual operating situations of the converter transformer. The laboratory experimental results verify that the VFRA can effectively identify winding looseness fault and enable online monitoring of winding mechanical condition.
引用
收藏
页码：8176 / 8180
页数：5
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