Optimal Dispatch of Integrated Energy System Considering Demand Response and Load Inertia

Abstract

Renewable energy has the characteristics of strong anti-peak regulation and uncertainty, which cause severe challenges to system peak shaving and renewable energy accommodation. To cope with the challenges of system peak shaving and renewable energy accommodation, this paper proposes an optimal dispatch model of integrated energy system (IES), which considers the price-based demand response and load inertia. Firstly, the impact of changes in energy price on users’ energy consumption is analyzed, and the cool and heat loads inertias are considered in their unbalanced constraints. Secondly, the objective function of the minimum operation costs of the IES is established, including the penalty cost of wind power and photovoltaics curtailments, and operation costs. Finally, the optimal dispatch model of IES is established and solved by YALMIP and GUROBI, respectively. The proposed model is compared with other conventional models. The accommodation capacity of renewable energy with the proposed model is enhanced.