传播衬里的极端高电压(UHV ) 的过量电压现象被 EMTDC/PSCAD 模拟分析并且验证。指理论分析和传播在中国和 UHV 传播衬里的额外的高电压(EHV ) 的操作经验在俄国和日本排队,在传播由保护和控制策略衬里的 UHV 压制内部过量电压的方法被讨论。通过在自动开关,分流反应堆,摔倒并且关门的电阻,和金属氧化物之中的合作变阻器(MOV ) ,过量电压能在可接受的水平以内被制止。
The overvoltage phenomena of ultra high voltage (UHV) transmission lines are analyzed and verified by EMTDC/PSCAD simulation. Referring to the theoretical analyses and operating experiences of extra high voltage (EHV) transmission lines in China and UHV transmission lines in Russia and Japan, the methods to suppress the internal overvoltage in UHV transmission lines by protection and control strategies are discussed. Through the cooperation among the recloser, shunt reactor, tripping and closing resistance, and metal oxide varistor(MOV), the overvoltage can be restrained within an acceptable level.