Simulation and Analysis of Resonant Overvoltage of AC System at $\pm 800\mathrm{kV}$ Converter Station based on EMTS/EMTPE

There are a large number of ac filters, reactors and other reactive compensation equipment in the $+800\mathbf{kV}$ converter station. Continuous switching of capacitive and inductive equipment may trigger resonant overvoltage. This article is based on power electronics and electromagnetic transient calculation program established $+800\mathbf{kV}$ ac system for electromagnetic transient model, to start debugging infill transformer and the ac system for filter when possible resonance overvoltage are analyzed in the simulation. The results show that the transient voltage during the start-up and commissioning of ac system of $+800\mathbf{kV}$ converter station is within the national standard limit and no resonant overvoltage is generated.