Quantitative Analysis of Complementary Benefits of Cooling, Heating and Electricity in Regional Integrated Energy System Based on Operation Simulation

Energy Internet is a new energy utilization system characterized by the deep integration of new energy technology and information technology to solve the gradual depletion of fossil fuels and the environmental pollution caused by them. As an important part of the integrated energy system, it can realize the optimal utilization of all kinds of energy and effectively solve the problems of environmental pollution and energy waste. This paper focuses on the quantitative analysis of the complementary benefits of combined cooling, heating and power (CCHP) based regional integrated energy system. On the basis of analyzing the energy supply structure of typical combined cooling, heating, power supply and storage systems, this paper studies the relationship between the heat and cold and power energy flow and the mathematical model of the equipment, and establishes the economic dispatching model of the combined cooling, heating and power supply system based on time-sharing electricity price. Finally, the complementary benefits of cooling, heating and power of regional integrated energy system are quantitatively analyzed. Through an example of an eco-city in North China, the equipment output and load balance of cooling, heating and power in the comprehensive energy system of each region are analyzed, and the economic comparison is made with the situation that there is no coupling of cooling, heating and power in the region, so as to quantify the complementary benefits of cooling, heating and power.