Decentralized Coordinated Robust Dispatch of Multi-Area Interconnected Integrated Electricity and Heating System

With the continuous expansion of wind power generation, wind power curtailment is becoming increasingly serious. In order to improve wind power accommodation capacity, more flexibility resources that can be utilized by electrical power system (EPS) need to be identified. This paper proposed a decentralized coordinated robust dispatch model of multi-area integrated electricity and heating system (IEHS), considering the dynamic characteristics of district heating network (DHN) and flexibility from interconnected IEHS transferred though tie-line. Meanwhile, the risk of wind power accommodation is also considered to balance the operational costs and risk costs. The alternating direction multiplier method (ADMM) is applied to solve the coordinated robust dispatch of multi-area IEHS. The results of the case studies show that the proposed model can optimize the allocation of power generation and flexibility resources in multi-area interconnected system, realize multi-area interconnected system flexibility sharing and effectively reducing operating costs.