Benchmark for AC-DC Hybrid System With High Penetration of Renewables(Ⅲ):Voltage Stability Benchmark CSEE-VS
Modern power systems are developing as AC-DC hybrid power systems with high penetration of renewables.The nature of voltage stability of the system is changing profoundly,and has been extensively studied.Existing studies adopt various test systems in simulations and case study.Authenticity and rationality of the test systems are occasionally overlooked.On the other hand,it is hard to compare the studies in different literature.In view of the above,this paper designs a benchmark for voltage stability study,i.e.CSEE-VS,based on the practical engineering of China.It addresses voltage collapse and continuous low-voltage after AC fault,which are typical scenarios of voltage instability.Penetration of renewables in the system is above 50%.Critical factors that influence voltage stability are studied for the benchmark,including penetration of renewables,power level of HVDC,configuration of synchronous condenser,etc.The study has shown that the benchmark is capable to reflect typical performance in voltage instability,and reflect several novel performances in system with high penetration of renewables.It can serve as an effective testbed in related fields.
voltage stabilityrenewable energyAC/DC hybrid power gridbenchmark