Day-ahead Scheduling of Hydro-Wind-Solar Integrated System Through Multiple DC Transmission Channels
With the development of hydro-wind-solar integrated systems including multiple DC delivery channels,how to formulate their day-ahead power generation schedules considering the uncertainties of wind and solar power and complex hydraulic and electric connections is a difficulty in hydro-wind-solar complementary operation.In this study,a day-ahead risk scheduling model of hydro-wind-solar integrated systems applying to multiple DC power delivery is estab-lished.According to the constraint characteristics of this model,a dimension reduction solving method is proposed.The clean energy base in the lower reaches of the Jinshajiang River is selected as a case study.The results indicate that the di-mension reduction solving method can greatly reduce the number of decision variables,and improve the solving efficiency.The formulated power generation schedule can ensure the steadiness of delivered power,and give full play to the peak-shaving performance of the system.Compared with deterministic model,the operational risk of the system decreases by 52.7%,and its reliability can be also improved.
multi-energy complementary systemrisk schedulingday-ahead power generation scheduleUHV DC
NETL
NSTL
万方数据
