Abstract:Demand response (DR) has played an important role in assisting the park integrated energy system (PIES) to absorb distribution generation (DG), but its uncertainty has brought huge challenges to the economic operation of PIES. In view of this, a PIES economic dispatch model based on information gap decision theory (IGDT) is proposed. First of all, with the objective function of minimizing the operating cost of the PIES, an economic dispatch model of PIES with DR combined cooling/heating/electricity is constructed. On this basis, using IGDT to deal with the uncertainties of DR and DG, in view of the problem that traditional IGDT is only suitable for single-factor deviation coefficients, different weights are given to DR and DG , to taking all the uncertainties into account to analysis the impact of economic operations of PIES; a risk aversion robustness model and a risk seeker opportuneness model were established for different types of decision makers to meet the needs of different types of decision-making. Then, the GAMS software is used to solve the problem and quantitatively analyze the equivalent deviation coefficients of the uncertainties corresponding to the two different decision-making models under different operating cost targets. Finally, the validity of the proposed model is verified by a calculation example, which provides a quantitative decision-making basis for the PIES scheduling planner to make plans.