How to apply compressed air energy storage technology in power systems?

　　Compressed air energy storage technology has broad application prospects in power systems. Typical application scenarios include the following aspects.

　　Compressed air energy storage technology has broad application prospects in power systems. Typical application scenarios include the following aspects.　　 1) Peak cutting and valley filling. The single unit capacity of the centralized large-scale CAES power station can reach the order of hundreds of megawatts, and the power generation time can reach several hours. The role of valley filling, thereby promoting the economic operation of the power system.　　2) Consumption of new energy. The capacity of the decentralized CAES power station is configured from several megawatts to tens of megawatts. It can be built with photovoltaic power plants, wind farms, small hydropower stations, etc., to store intermittent renewable energy, and release it during peak power consumption to alleviate the current The dilemma of abandoning wind, abandoning light and abandoning water.　　3) Build an independent power system. CAES can also be used in power systems in special occasions such as deserts, mountainous areas, and islands. Such areas have special requirements for the life of the energy storage system and environmental protection. In this case, if combined with clean energy such as wind power, photovoltaic power, and tidal power, combined with the characteristics of non-supplementary combustion CAES combined cooling, heating and power, it is expected to build a low-carbon and environmentally friendly combined cooling, heating and power independent power system.　　4) Emergency backup power supply. Since the non-supplementary combustion CAES technology is not restricted by the external power grid, fuel supply and other conditions, the application of this technology will ensure that important load units such as government agencies, military facilities, The normal operation of hospitals, etc.　　5) Auxiliary function. Compressed air energy storage has a synchronous power generation system with adjustable power and voltage, and responds quickly. Its large number of applications can increase the spinning reserve and reactive power support capabilities of the entire power system, and improve the power quality and safety and stability of the system.