The invention discloses a reliability evaluation method of a pumped storage
system based on multiple
wind power plants. The method includes the following steps: 1, based on relevant characteristics of wind speeds of two adjacent
wind power plants, calculating
wind speed time series of the wind speeds of the two adjacent
wind power plants according to an ARMA method; 2, establishing a reliability evaluation model of the pumped storage
system based on the wind power plants; 3, conducting reliability evaluation on the reliability assessment model, obtained in step 2, of the pumped storage
system based on the wind power plants by using a sequential Monte Carlo method. The method has the advantages that
wind speed related informationis close to that in a real situation, in the evaluation process, the influences of the installed capacity, pumping efficiency and operation strategy of pumped power stations are taken into account, the use of pumped storage system can reduce the abandoned wind amount and improve the wind energy utilizationrate, and the impacts of wind
electricity fluctuation on the security of
electric power security systems are reduced.