摘要
为了提高染污绝缘子污秽程度预测的准确性,分析了常用的几种泄漏电流去噪方法所存在的缺陷,引入了数学形态学算法,对绝缘子运行过程中安全区和预报区的泄漏电流进行了降噪处理,确定了相应的形态学结构元素,构造了新型广义多结构元素串行复合形态滤波器。实验表明:该滤波器较好地改善了泄漏电流信号的波形,易于在实际工程中实现,可进一步提高对绝缘子污秽程度预测的准确性。
The mathematical morphology algorithm is introduced to the leakage current monitoring in the security zone and the forecast zone of insulators for advanced the veracity of pollution degree forecast. The disadvantage of several common leakage current monitoring methods is analyzed. The corresponding morphology structuring elements is confirmed, and a class of generalized serial complex morphological filter with multiple structuring elements is constructed. Simulation results indicated that this filter could improve wave of leakage current signal, which is easily applied in actual project and advanced the veracity of insulators pollution degree forecast.
出处
《电网与清洁能源》
2011年第11期20-24,共5页
Power System and Clean Energy
关键词
绝缘子
泄漏电流
数学形态学
在线监测
噪声
insulator
leakage current
mathematical morphology
online monitoring
noise
