An Optimal Dispatching Model for Interconnected Power Grid Based on Security Region

With the construction of new power systems, more and more new energy is connected to the power grid, and at the same time, the connections between regional power grids are becoming increasingly close. However, the regulation and operation of power grids between different regions are relatively independent, making it difficult to solve them using a unified optimization approach. Therefore, this article aims to propose a multi region power grid coordination optimization model based on security region, equating each regional power grid into a low dimensional model that can be directly dispatched. On the one hand, it can reduce the scale of problem solving, and on the other hand, it conforms to the interactive mechanism of actual scheduling. Finally, validation was conducted on a standard example system. The results of the example show that it can meet the effectiveness of the calculation, greatly reduce the complexity of the problem, and improve computational efficiency.