基于振动信号的变压器故障分析
Transformer Fault Analysis Based On Vibration Signal
叶开迪 1万前宏 2张师3
作者信息
- 1. 国网浙江省电力有限公司乐清市供电公司,浙江 温州 325600
- 2. 国网浙江省电力有限公司瑞安市供电公司,浙江 温州 325200
- 3. 东北电力大学电气工程学院,吉林 吉林 132012
- 折叠
摘要
变压器振动信号可以分析出变压器的运行状态,变压器故障的提前预警可以为电网的安全稳定运行提供保障.基于振动信号的小波包分析,研究了变压器不同运行状态的特点.通过分析可知,变压器发生故障时,振动信号分解后的各频谱信号波高频部分所占的比例比正常时增加了一些,而低频部分所占的比例减少了 一些.
Abstract
The transformer vibration signal can analyze the operation state of the transformer,and the early warning of the transformer fault can provide a guarantee for the safe and stable operation of the power grid.Based on the a-nalysis of the wavelet packet of the vibration signal.Through the analysis of this paper,it is known to see that when the transformer fails,the proportion of the high frequency part of each spectrum signal wave after the vibration signal decomposition is more than that of normal,while the proportion of the low frequency part is reduced.
关键词
变压器/振动信号/小波包/能量特征值Key words
transformer/vibration signal/wavelet packet/energy characteristics引用本文复制引用
出版年
2024
NETL
NSTL
万方数据