Research on Intraday Rolling Optimal Dispatch Including Pumped Storage Power Station

Based on the intraday trading of power spot market and the current operation mode of pumped storage power station, a rolling coordinated dispatching strategy for new energy and pumped storage combined power generation system is proposed. After pumped storage power plants enter the power market. Taking the maximum overall benefit of the joint system as the objective function, a 0 -1 mixed-integer linear programming model with pumped storage participating in intra-day rolling optimal scheduling is constructed. The analysis part of the calculation example takes a provincial power grid as an example. Based on the unit operation plan made the day before the operation, the ultra-short-term prediction information updated in real-time was used to conduct rolling correction and clear the planned operation curve of the next period. The results show that the new energy is well absorbed after the pumped storage power station participates in the intraday market, which makes the system operator obtain greater overall expected income.