摘要
由于电气设备绝缘劣化而发生局部放电,且放电模式与绝缘设备的缺陷类型有关,因此,局部放电检测是有效防止电气设备进一步劣化导致击穿的有效措施,对提高电气设备的安全运行具有重要的实际意义。小波分析法是一种比较新的信号分析方法 ,是信号去噪的重要工具,在有用信号的提取、噪声和突变信号的消除等方面具有较强的实用价值。
Because of the electrical equipment insulation deterioration and the occurrence of partial discharge, the defect type and discharge mode and insulation equipment, therefore, the partial discharge detection is an effective measure to prevent further deterioration of electrical equipment breakdown, it has important practical significance to improve the safe operation of electrical equipment. Wavelet analysis which is a new signal analysis method, is an important tool for signal denoising, the useful signal extraction, noise and mutation signal elimination has a strong practical value.
出处
《自动化技术与应用》
2015年第9期70-74,共5页
Techniques of Automation and Applications
关键词
绝缘劣化
局部放电
小波分析
去噪
检测
insulation deterioration
partial discharge
wavelet analysis
denoising
detection
