电测与仪表2018，Vol.55Issue(3)：7-12,19,7.
基于振动信号分形维数的变压器松动诊断方法
Transformer fault diagnosis method based on fractal dimension of vibration signals
赵莉华 1丰遥 1谢荣斌 2薛静 2张霖 2王仲1
作者信息
- 1. 四川大学电气信息学院,成都610065
- 2. 贵州电网有限责任公司贵阳供电局,贵阳550000
- 折叠
摘要
Abstract
Based on the change of non-linear characteristics of vibration signals before and after the transformers looseness,a transformer fault diagnosis method based on the fractal dimension of the vibration signals time domain waveform was proposed to adopt as the diagnostic characteristic of iron core and winding looseness.This paper discussed the feasibility of the application of fractal dimension in the analysis of transformer vibration signals.In this paper,kinds of transformers vibration signals were measured and the fractal dimension of the vibration signals was calculated according to fractal theory.The results show that the fractal dimension of different kinds of winding signals of focus on 1.19 under normal state.The fractal dimension of iron core vibration varied with transformers,while it became stable with the same transformer.The fractal dimension of iron core and winding vibration signals significantly increased after the transformer looseness,it can accurately reflect the normal and loose state of transformer.关键词
分形维数/振动信号/变压器/故障诊断Key words
fractal dimension/vibration signal/transformer/fault diagnosis分类
信息技术与安全科学引用本文复制引用
赵莉华,丰遥,谢荣斌,薛静,张霖,王仲..基于振动信号分形维数的变压器松动诊断方法[J].电测与仪表,2018,55(3):7-12,19,7.
