Integrated energy system operation considering building thermal inertia and hydrogen storage systems

Abstract

Integrated energy systems can realize multi-energy complementarity and energy cascading. Hydrogen energy storage can promote renewable energy consumption, reduce system operation cost and improve system energy efficiency. The heating building has thermal inertia and maintains a certain temperature for a short period of time after the heating is stopped, which will have an impact on the output of the integrated energy system equipment. Therefore, this paper proposes a method to optimize the operation of the integrated energy system considering the thermal inertia of the building and the hydrogen energy storage system. Firstly, an integrated energy system equipment model considering cogeneration equipment and a hydrogen storage system is constructed. Secondly, with the objective function of minimizing the total operating cost and maximizing energy efficiency, the conventional thermal load real-time balancing constraint is replaced with maintaining the indoor temperature within the desired range to construct an integrated energy system operation optimization model considering building thermal inertia and hydrogen storage systems. Finally, a hybrid particle swarm optimization-cuckoo search algorithm based on a Beetle antennae search strategy (BPSO-CS) is proposed for the solution, and the scenario considering building thermal inertia and hydrogen storage systems reduces the total operation cost by 58.77%, improves energy efficiency by 10.61%, and increases the wind power consumption rate by 45.21%.