Multi-level Allocation Strategy for Integrated Energy Based on Energy Storage Capacity Allocation

Energy distribution is an essential component of an integrated energy system to meet the load demand. However, most current energy distribution strategies rely heavily on the forecasting techniques with limited accuracy. With the objective of real-time distribution of the integrated energy, a multi-level allocation strategy for the integrated energy based on the energy storage capacity allocation is proposed. Firstly, considering the economy, different scenarios are differentiated based on the gas and time-sharing tariffs. Secondly, a multi-level distribution strategy is developed for different scenarios based on the conversion capability of the integrated energy equipment and the load-side demand response capability to determine the output sequence of the output terminals. Finally, the above energy allocation strategy is embedded into the multi-objective heat exchange optimization algorithm as a constraint, and the comprehensive energy economic scheduling problem is transformed into the energy storage capacity allocation problem. Simulation results show that the economic cost of the integrated energy is lower than the traditional energy allocation strategies due to the consideration of multiple scenarios and the synergistic effect of the power and heat storage, while the satisfaction rate of energy using within the integrated energy system of the campus is also improved. © 2023 Power System Technology Press. All rights reserved.