高压电晕电流自主供能测量装置

An Independent Power of Corona Current Measurement Device Under High Voltage Environment

为了能够连续检测高压直流输电线路的电晕电流信号,更好地研究高压直流传输线路的电晕电流特性,研制了一种可以通过太阳能进行自主供能的电晕电流测量装置。将太阳能光伏发电技术应用到高压环境检测设备中,通过对光伏电池输出特性的分析,利用ANSYS电场仿真技术优化出工作于高压环境中自主供能检测设备的最优结构,并对其进行了高压放电测试和实际线路测试。研究结果表明:结构优化后的测量装置表面电场强度有效降低,可以在高压复杂电磁环境中稳定工作;自主供能测量装置的供能周期有效延长,可以有效完成电晕电流长时间测量任务,使设备的工作效率得到大幅提高。

A corona current measuring device that can be powered by solar energy is developed in order to better continuously detect the corona current signal of high-voltage direct-current(HVDC)transmission line.The solar photovoltaic power generation technology was applied to high-voltage(HV)environment testing equipment.Based on the analysis of the output characteristics of the photovoltaic battery,the ANSYS electric field simulation technology was used to optimize the testing equipment structure in HVDC environment.The optimal equipment structure was tested by HV discharge test and actual test.The results show that the surface electric field intensity of the measuring device after the structure optimization is reduced effectively,and it can be stable in the HV and complex electromagnetic environment.The power supply cycle of the independent power supply measuring device can be prolonged effectively,which can effectively complete the measuring task of corona current for a long time,and greatly improve the working efficiency of the equipment.