摘要:
本文以南方某550 kV GIS电站为研究对象，从GIS结构出发，建立相应的GIS内部结构模型，在单机单出线工况下，对GIS隔离开关操作引起的快速暂态过电压进行仿真。研究GIS的结构参数对快速暂态过电压的影响，并从GIS内部、外部等多角度来分析VFTO的影响因素。 Taking a 550kV Gas Insulation Switchger (GIS) substation in the South as the object of study, the corresponding GIS internal structure model was established according to the structure of GIS in the paper. In the single motor single line conditions, very fast transient overvoltage (VFTO) caused by disconnector in GIS are simulated. In the paper, the effect of structure parameters of GIS on VFTO was studied, and the influence factors of VFTO were analyzed from multiple perspectives, such as GIS internal and external factors, and so on.