Research On Integrated Demand Response Strategy Of Smart Energy Community

Driven by the "third industrial revolution",a new round of energy revolution in the world has entered the era of Energy Internet(EI).The development of EI promotes the upgrading of power grid and the development of China’s energy revolution.As an important means of two-way interaction between load side and grid side,demand response(DR)has been widely concerned in the world.Under the background of EI,the energies of smart energy community(SEC)are coupled and replaced by each other.DR is gradually derived into integrated demand response(IDR),and realize the comprehensive response of multiple types of load demand including electricity,gas and heat.However,the load side of SEC is complex and diverse,with different temporal and spatial characteristics,so it is necessary to carry out the research on IDR strategy.In view of the above problems,the thesis proposed the IDR strategy of SEC.The specific work includes the following two aspects.(1)On the basis of electricity DR mechanism,an IDR classification strategy under the background of EI is established.Aiming at the synergy optimization of longitudinal transition between energy and lateral shift of energy use time of SEC,an energy hub(EH)equation with different response types is established to realize the quantitative expression of response mode and response degree.An IDR strategy including time shift and energy conversion is proposed to realize the unified modeling and synergy optimization of them.(2)In view of the problem that multiple energies are supplied at the same time of the thermoelectric coupling system,an EH model is established based on the electrical equipment to realize the mathematical description of energy supply and electrical equipment.Then,the minimum cost optimization model of daily operation of the system is established.Based on the analysis of the necessity of the generalized inverse transformation in the solution of the model,the objective function is solved by the generalized inverse transformation.Through the above work.the enthusiasm of DR of the load side residents in the SEC has been stimulated,and the potential of DR has been explored.The proposed method not only reduces the operating cost of the system,but also effectively relieves the pressure on the energy supply side,and improves the energy utilization efficiency.A theoretical support for the optimization of energy consumption of SEC taking into account the IDR are provided.