Coordinated scheduling strategy for power grid's new energy generation output and load regulation characteristics

With the increasing penetration of distributed energy resources, the existing hierarchical scheduling operation mode of networks for transmitting and distributing electricity faces challenges in achieving global optimization. This paper proposes a coordinated scheduling strategy for power grid's new energy generation output and load regulation characteristics. Firstly, the coordination relationship of networks for transmitting and distributing electricity is analyzed, and a demand response scheduling framework and a demand response model for transmission and distribution coordination are constructed. Secondly, considering the risks caused by fluctuations in the system's operation, an uncertainty model for renewable energy and demand-side response is established. Then, the uncertainty model is combined with a robust model to build a robust optimization scheduling model for coordinated distribution of distributed energy resources and demand-side response. A simulation model built upon operational data of a specific transmission and distribution system is used to validate the efficacy of the proposed optimization scheduling approach. This strategy enables interactive coordination between electricity transmission and distribution grids, optimizing operating costs and operating risks synergistically.