Distributed collaborative optimal dispatch of distribution system with multi-stakeholders

In recent years, to achieve energy conservation and emission reduction and the clean transformation of energy structure, the user-side distributed energy has developed rapidly, and the coupled operation characteristics of cooling, heating and power have become increasingly prominent. The distribution system with multiple stakeholders has received extensive attention. However, the change of distribution pattern will bring many problems to the optimal operation of power system. This paper introduces the analysis target cascading (ATC) theory and proposes a coordinated and optimized scheduling model with distribution network operators, distributed energy providers., and combined cooling heating and power (CCHP) load integrators as the main stakeholders by exchanging contact variable information. Based on the detailed technical model of the internal components of each stakeholder., the linkage variables between each stakeholder and the distribution network operator are decoupled and solved in parallel to improve the computational efficiency. The model considers the access of wind-light-storage and combined cooling., heating and power generation systems., which is conducive to the realization of multi-energy complementary operation of the distribution system and the transformation of energy structure.