Optimal Dispatching Method of Integrated Energy System of Electrothermal Interconnection Based on Energy Flow

Abstract

Aiming at the problem that the total amount of coal consumption and the abandoned wind is too high in the actual operation of the current integrated energy system of electric heating and interconnection, this paper studies the design of the optimal dispatching method of the system from the angle of energy flow. The potential energy dissipation rate of the heat source, heat exchanger, heat pipe network, and other structures in the system is described in mathematical form, and a complete system energy flow model is constructed by combining them. On this basis, the heat load of system users is analyzed and predicted from the angle of energy flow. Finally, the system is divided into power and gas grid variables, optimized to realize distributed multi-objective optimal scheduling. By comparing the operation of the system before and after the optimal scheduling, it is found that the total coal consumption and the total abandoned wind during the system operation are reduced after the optimal scheduling, which proves that the optimal scheduling method has a very high practical application value.