Abstract: Integrated community energy system（ICES）based on energy router （ER）and common DC bus not only realizes the complementarity of many forms of energy such as electricity, heat and cooling, but also realizes the electric energy sharing among integrated energy systems in the community. In order to improve the operation flexibility, two kinds of thermal energy storage are considered in the integrated energy system: thermal storage system and thermal storage links in the combined heat and power concentrating solar power. On the basis of this system, an energy sharing based operation optimization model is established. The objective function is to minimize the operation cost of integrated community energy system. Compared with the non-cooperative mode, the energy sharing between integrated energy systems can reduce the operating cost and CO2 emissions. In order to ensure that the coalition benefits of integrated community energy system are fairly distributed among the participants in the coalition, Nash bargaining method is proposed. In addition, in view of the situation that the new participant joins the coalition after the initial coalition is established, the optimal operation model of the new coalition is proposed. A case study verifies the feasibility and effectiveness of the proposed optimal operation model.

Key words: integrated community energy system（ICES）, energy router（ER）, energy sharing, Nash bargaining