变压器局部放电在线监测中的信号处理技术

Signal Processing Techniques Discharge Online Detecting of Power Transformer

抑制干扰是变压器局部放电在线监测的关键技术 .系统地分析了变压器局部放电监测中的干扰信号特征 ,并在此基础上提出了有效的抑制干扰措施 .实验表明 ,提出的信号处理技术能有效地提取局部放电脉冲信号 ,具有良好的应用前景 .

The interference suppressing is the crucial techniquein in online PD detecting of power transformer.The characters of interferece signal in online PD detecting are systematically discussed,based on which,effective signal processing measures for interference suppressing is proposed.Simulation experiment results show that the proposed techniques can be effectively used to extract PD signal and have bright forground in practical application.