A Two-Stage Annual Dispatch Model of Multi-region System Considering Daily Typical Periods Calibration

As the proportion of renewable energy increases, the adjustment capacity of the system becomes insufficient. Therefore, how to realize the optimal allocation of resources in a wider range is an important topic in the power system. In this paper, to conduct more accurate power electricity balance measurement on medium and long-term time scales, a two-stage annual dispatch model of a multi-region system considering daily typical periods calibration is established. In the first stage, the maintenance scheduling of each region and tie-line scheduling of the system are arranged. In the second stage, the decision variables of the first stage are used as the boundary, and the generation plan of every region's units is formulated. Then, we add four daily typical periods calibration constraints to this basic model to ensure the feasibility of the annual plan within a day. Finally, the model is validated by the XJTU-ROTS system with high renewable energy penetration.