摘要
介绍了局部放电超声波检测和定位的方法,并采用基于小波变换的信号压缩处理方法对包含振动噪声干扰的超声波信号进行处理,排除振动干扰信号的影响,精确识别超声波信号到达时刻。
The ultrasonic method of detection and location of partial discharge is introduced. Using the signal processing and compression method based on wavelet transform to analyse mixed vibration noise and ultrasonic signal, the effect of vibration interference signal are eliminated and the arrival time of the ultrasonic signal are accurately identified.
出处
《变压器》
北大核心
2014年第8期59-63,共5页
Transformer
关键词
换流变压器
局部放电
超声波
信号处理
Converter transformer
Partial discharge
Ultrasonic wave
Signal processing
