Optimal Operation Strategy of Combined Heat and Power System Considering Demand Response and Household Thermal Inertia

Abstract

With the development of energy Internet and renewable energy, the combined heat and power micro-energy grid (CHPMEG) has become an important carrier for the use of clean energy. In order to improve the living comfort of households and the utilization efficiency of wind power in winter, this paper proposes a coordinated optimal operation strategy of CHPMEG considering the load demand side response and the thermal inertia of the user side. First, the load demand side response is introduced into the optimal operation of CHPMEG, and a load demand response model is proposed based on reward mechanism. Then, the household thermal inertia is taken into account in the system operation, and a heat load model considering thermal inertia is established to describe the corresponding characteristics more exactly. On this basis, an optimization model is further developed and solved to minimize the operation cost of the system. Finally, the case simulations demonstrate the effectiveness of the optimal operation strategy of CHPMEG proposed in this paper.