Optimize the Capacity Configuration of the Integrated Energy System with Cold and Heat Energy Storage

Abstract In the background of carbon neutrality and carbon peak, integrated energy system (IES) is widely concerned as an efficient and clean form of energy utilization. In this study, an office building in Nanjing was taken as a research scenario to build a comprehensive energy system of photovoltaic, cold-heat-electric combined energy storage. Optimize the capacity configuration of each equipment in the system according to the user load requirements of the three typical working conditions, and two scenarios are set to explore the impact of heat storage and cold storage devices on the system performance. The simulation results show that the total carbon emission of the system is reduced by 5.18%, the fuel cost is reduced by 102,236 million yuan, and the total cost is reduced by 1.44% through considering the heat and cold storage device. The economic flexibility and environmental performance of the system have been improved.