Two-Level Optimal Dispatching Strategy for Regional Integrated Energy System Considering Demand Response

Demand response aggregator aggregates users’ transferable loads and reducible loads through demand response to improve the flexibility and economy of regional integrated energy system. Considering the interactive game relationship between the integrated energy system operators and the demand response aggregators, a two-level optimal dispatching model of the regional integrated energy system is established with consideration of the demand response. By taking the maximum economic benefits of the regional integrated energy system operators and the demand response aggregators as objective respectively for the upper and lower layers, the KKT conditions and linearization method are used to convert the two-layer model into a single-layer mixed integer linear optimization model for solution. The results show that using the time-of-use electricity price and the demand response compensation price to guide users to adjust their energy use plans can increase the profits of integrated energy system operators and demand response aggregators while achieving peak load shaving and reducing the impact on the safe and stable operation of the power grid.