同走廊双回直流线路地面合成电场计算Calculation of Total Electric Field at Ground Level Underneath Double-Circuit HVDC Transmission Lines in the Same Corridor
杨勇;陆家榆;雷银照;
摘要(Abstract):
我国部分地区输电走廊非常紧张,为了提高单位走廊的电能输送能力,可以采用更有效率的输电线路方式,同走廊双回直流线路是一种备选方案,然而双回直流线路同走廊架设在世界上尚无工程应用先例。文中给出了一种同走廊双回直流线路地面合成电场的计算方法,考虑了影响此种线路地面合成电场的多种重要因素,并使用该方法分析了同走廊双回直流线路地面合成电场的分布特点。结果表明:不同的极导线布置方案不会显著影响地面最大合成电场的大小,但会影响其分布位置;同走廊双回直流线路地面最大合成电场的绝对值与单回直流线路的差别不大;同走廊双回直流线路能在一定程度上提高单位走廊的电能输送能力。
关键词(KeyWords): 高压直流线路;同走廊;合成电场;布置方案
基金项目(Foundation):
作者(Author): 杨勇;陆家榆;雷银照;
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参考文献(References):
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