Kawamoto, NaokiNaokiKawamotoSusuki, YoshihikoYoshihikoSusukiD'Arco, SalvatoreSalvatoreD'ArcoIshigame, AtsushiAtsushiIshigameMende, DenisDenisMendeStock, David SebastianDavid SebastianStock2022-05-062022-05-062021https://publica.fraunhofer.de/handle/publica/41455710.1587/nolta.12.711The so-called short-term voltage stability is typical of nonlinear problems arising in dynamic performance of electric power systems. This paper reports a simulation result on load margin for short-term voltage stability of the IEEE 9-bus system connected to a multi-terminal DC system based on voltage-source converter (VSC). The simulation shows that the introduction of AC voltage control in VSC increases the load margin under a step change in load on the AC system, thereby showing a clear benefit of the AC voltage control for enhancing the short-term voltage stability without harnessing the AC system.enMulti-terminal DC systemInterconnected power systemShort-term voltage stabilityAC voltage controljournal article