Optimal Modeling of Integrated Energy System Demand Response Operation Considering Wind Power Absorption

In this paper, the demand response is applied to the integrated energy system. Through the switching of transferrable load and heat storage device, a large number of loads are transferred to the period when wind power resources are abundant and conventional loads are relatively low, so as to absorb the forced wind abandonment, thus improving the utilization rate of wind power resources through transferrable load and heat storage device. Based on the further study of how to improve wind power absorption, this paper discussed the influence of wind power absorption system based on transferable load and heat storage devices to the traditional scheduling schemes. The objective function is established with the minimum forced wind abandonment volume and the minimum cost of the comprehensive operating system. The multi-objective genetic algorithm is used to solve the problem, and the optimal solution set can be obtained. Then the single objective optimization function is established by weighting method, and the optimal compromise solution and the final scheduling scheme is finally obtained. This paper takes a power grid operation system as simulation example, and shows that the dispatching scheme of using transferrable load and heat storage devices can greatly reduce the operating cost of the system and enhance the wind power absorption capacity of the system, compared with the traditional dispatching scheme.