高压绝缘子泄漏电流检测装置的设计

Design of Detection Device of HV Insulator's Leakage Current

高压绝缘子的污秽程度直接影响铁道供电系统的安全和稳定。设计了一种基于ARM微处理器的高压绝缘子泄漏电流检测装置,该装置能同时检测绝缘子的泄漏电流、环境温度和湿度等参数。通过小波变换滤除噪声,由模糊神经网络判断绝缘子的绝缘情况。它能较精确地检测出高压绝缘子的泄漏电流,准确地判断高压绝缘子的污秽绝缘情况。

The contamination of HV insulator directly affects the safety and stability of the railway power supply system. A detection device of HV insulator＇ s leakage current was designed based on ARM microprocessor. The device could detect the leakage current of the insulator and the temperature and humidity parameter of the environment at the same time. The noises were filtered through wavelet transform and the insulation conditions were determined by fuzzy neural network. The designed device more accurately detect the HV insulator＇s leakage current and judges the contaminant insulation conditions of HV insulators.