Research on integrated energy system of multi-energy joint supply is of great significance to achieving China's carbon peak and carbon neutral goals. Absorption of new energy and complementation of multiple energy sources are important advantages of cryogenic liquid air energy storage(LAES) system. In order to improve the flexibility and reliability of the integrated energy system

and to be able to absorb more new energy

in this paper

the LAES system is added to the integrated energy system to establish an integrated energy system that considers the LAES and build a mathematical model of the system. With the goal of minimizing operating costs and based on actual load data

an economic dispatch optimization model for the integrated energy system is established. Finally

the system is simulated by MATLAB

and the commercial software CPLEX is used for optimization

so as to verify the feasibility of the integrated energy system planning. The simulation results show that

the addition of new energy storage equipment improves the economic benefits

new energy consumption rate

primary energy saving rate and carbon emission reduction of the integrated energy system

and helps coping with fluctuations in energy prices steadily.