Optimization of Regional Integrated Energy System with Load Aggregator

The conversion relationship of the Integrated Energy System between input and output energy can be decoupled based on the Energy Hub model. Meanwhile, the demand side response of various types of loads can further improve the comprehensive utilization efficiency of energy and reduce operating costs. Thus, this paper introduces the Load Aggregator into the Regional Integrated Energy System of District, which can integrate the elastic load of small and medium load and centrally control and fully exploit the Demand Response potential. Firstly, according to the characteristics of Energy Hub model and the Demand Response resources, the Regional Integrated Energy System of District and Load Aggregator model are established respectively. Then the optimization model of Regional Integrated Energy System established, which object is lowest operating cost, and the constraints of network constraints, equipment constraints and power balance constraints are considered. Finally, taking the integrated energy system of a commercial district's summer typical day as an example, the effects of different load aggregators on the integrated energy system and different load reductions on energy cost were analyzed, which confirmed the effectiveness of model.