超高压输电线地面电场的测量、计算及分析

摘要

利用电磁辐射分析仪PMM8053B与工频电磁场探头EHP-50C对某地区500 kV超高压输电线路的电场强度进行了实际测量;应用等效电荷法对该地区空旷地带的电场强度进行了模拟计算.通过Matlab软件对比计算结果与实测结果后得出,采用等效电荷法计算电场强度所得结果与实测数据基本一致;建筑物中以及树林下的电场强度远小于空旷地带.%By PMM8053B electromagnetic radiation analyzer and EHP-50C electromagnetic field probe with power frequency, electric field intensity of 500 kV super high-voltage transmission line was measured in some area and electric field intensity in open zone of the area was calculated by use of equivalent charge method. Through comparing the measured and calculated results by use of Matlab, conclusions were gotten that the calculated results are mainly consistent with the measured ones and electric field intensity in buildings and woods is far less than the one in open zone.