Deep sliding pressure compressed air energy storage system and operation mode thereof

The invention discloses a deep sliding pressure compressed air energy storage system and an operation mode thereof, and relates to the technical field of compressed air energy storage, the deep sliding pressure compressed air energy storage system comprises an energy storage unit and an energy release unit; the energy storage unit comprises an air filter, a first electric air compression device, a second electric air compression device, a third electric air compression device, a first air-water heat exchanger, a second air-water heat exchanger, a third air-water heat exchanger, a fourth air-water heat exchanger, an air storage device, a hot water tank and a cold water tank; the energy release unit comprises a first water-gas heater, a second water-gas heater, a third water-gas heater, a first turbine unit device, a second turbine unit device, a third turbine unit device, a first generator and a second generator. The compressed air energy storage system in which the two groups of turbines with different slidin