Water-gas coexistence compressed air energy storage system and control method

The invention discloses a water-gas coexistence compressed air energy storage system and a control method.The water-gas coexistence compressed air energy storage system comprises an energy storage device, a first energy conversion device and a second energy conversion device, the energy storage device comprises a first container, a second container and a connecting pipe, the second container is arranged in the first container and communicates with one end of the connecting pipe, and the other end of the connecting pipe communicates with the first container; the other end of the connecting pipe is communicated with the reservoir; the first transduction device is communicated with the power supply end and the first container and used for converting electric energy into high-pressure air to be stored in the first container; the second energy conversion device is communicated with the first container and the power utilization end and used for converting the high-pressure air stored in the first container into ele