基于分数阶噪声滤波器的特高频局部放电检测抗噪声分析  

Anti Noise Processing for UHF Partial Discharge Detection Based on Fractional Order Noise Filter

作　　者：王桐 刘畅 王雍会 WANG Tong;LIU Chang;WANG Yonghui(State Grid Materials Co..Ltd.,Beiing 100120,China;State Grid Hebei Extra High Voltage Company,Shijiazhuang 050051,China)

机构地区：[1]国网物资有限公司,北京100120 [2]国网河北省电力有限公司超高压分公司,河北石家庄050051

出　　处：《河北电力技术》2024年第1期61-65,共5页Hebei Electric Power

摘　　要：内置式特高频局部放电检测中存在通信与电磁叠加产生的高频复合噪声,对局部放电信号产生干扰及掩盖,无法获取精准的局部放电波形。因此,结合分数阶噪声滤波器的特点和滤波原理,提出基于分数阶噪声滤波器的内置式特高频局部放电检测噪声控制方法,并通过有限元仿真和试验验证了该方法的有效性、稳定性与可靠性。In the built-in ultra-high frequency partial discharge detection,there is high-frequency composite noise generated by communication and superposition,which interferes and masks the partial discharge signal,making it difficult to obtain accurate partial discharge waveform.Combined with the characteristics of the fractional noise filter and the filtering principle,this paper focuses on the fractional order noise filter and proposes a noise control method for ultra-high frequency partial discharge detection based on the fractional order noise filter.The effectiveness,stability,and reliability of this method in controlling high-frequency composite noise in ultra-high frequency partial discharge detection have been verified through finite element simulation and experiments.

关 键 词：内置式特高频 局部放电检测 复合噪声 分数阶噪声滤波器 噪声控制 

分 类 号：TM51[电气工程—电器]