【摘要】 气体绝缘开关设备(gas insulated switchgear, GIS)操作产生的瞬态地电位抬升（transient ground potential rise,TGPR）以及空间电场，对站内人员安全以及二次设备的稳定运行构成严重威胁。GIS操作中电弧模型会对TGPR和空间电场的仿真计算精度产生影响。因此，文中建立GIS三维瞬态电场仿真模型，基于时域有限积分法，研究不同的开关电弧模型及其参数对TGPR和空间电场仿真结果的影响。分析结果表明，采用理想开关模型和定值电阻模型，TGPR和空间电场的仿真波形幅值较高，而采用类双曲线模型，TGPR和空间电场的仿真脉冲波形幅值最低。采用指数模型和分段电阻模型，TGPR和空间电场的仿真波形及其幅值与实测结果几乎一致。在分段电阻模型中，随着稳态电阻增大，TGPR和空间电场的脉冲幅值降低；然而，当电弧模型的等效长度和等效半径变化时，TGPR和空间电场的脉冲幅值基本保持不变。更多还原

【Abstract】 Transient ground potential rise(TGPR) and transient electromagnetic field generated by the switching operation of gas insulated switchgear(GIS) pose a great threat to the safety of the personnel in the station as well as the stable operation of the secondary equipment. The arc model has a great influence on the simulation calculation of TGPR and transient electromagnetic field. In this paper, a three-dimensional transient electromagnetic simulation model of GIS is established, and the effects of different arc models and model parameters on the simulation results of TGPR and spatial electric field are investigated by applying the finite integration time domain method. Through the analysis, it is found that the simulated waveform amplitude is higher under the ideal switching model and constant resistance model, and the simulated waveform amplitude is lowest under the hyperbola-like model. The simulated waveforms and pulse amplitudes under the exponential and segmented resistance models are almost the same. In the segmented resistance model, the amplitudes of TGPR and spatial electric field tend to decrease when the variable parameter of steady resistance increases. The waveform amplitudes of TGPR and spatial electric field are almost unaffected when the equivalent length and equivalent radius of the arc model change.更多还原