Dynamic modeling and regulation control of advanced adiabatic compressed air energy storage under all operating conditions

Advanced adiabatic compressed air energy storage (AA-CAES) can improve the rate of new energy consumption and ensure the stable operation of microgrids, which is a key technology for building comprehensive energy microgrids. Existing research lacks modeling methods that adequately reflect the dynamic characteristics of the AA-CAES system, making it challenging to reflect the coupling relationship between the integrated energy microgrid and the energy storage system. This paper proposes a component-level dynamic modeling approach for the AA-CAES system under variable operating conditions and constructs a system-level dynamic model of the compressor subsystem and turbine subsystem. Finally, the accuracy of the dynamic model developed in this paper is verified in combination with existing models. The simulation results demonstrate that the dynamic model of the AA-CAES system developed in this paper is both accurate and practical, and it can precisely capture the thermodynamic dynamic process of compressed air energy storage.