Charging and discharging integrated system for energy storage system

A charging and discharging integrated system for an energy storage system comprises a first bidirectional conversion circuit, a high-frequency transformer, a second bidirectional conversion circuit, an inversion discharging output channel and an alternating current charging input channel. The second bidirectional conversion circuit is an H-bridge conversion circuit composed of four first power tubes; during discharging, the first bidirectional conversion circuit converts a direct-current power supply output by the energy storage system into a pulse power supply, and a parasitic diode of a first power tube of the second bidirectional conversion circuit rectifies the pulse power supply output by the high-frequency transformer; during charging, the second bidirectional conversion circuit converts a direct-current power supply signal output after rectification of the alternating-current charging input channel into a pulse power supply, and the first bidirectional conversion circuit is used for rectifying the puls