摘要
This study presents an investigation of the impact of the quasi-stationary voltage support provided by a voltage source converter(VSC)connected to a single point of a power system.Based on the directional derivative concept,an analytical method is developed to quantify the sensitivities of the AC bus voltage with respect to the VSC reactive power control modes.Based on a real case study,it is shown that the method applies to VSC units that are part of VSC-HVDC systems,which can operate in a point-to-point or multi-terminal configuration.Time-domain simulations are performed to verify the findings from the application of the analytical method on a reduced size power system.
