Box-type transformer flexible starting device based on energy storage

The invention provides a box-type transformer flexible starting device based on energy storage, which comprises an energy storage battery module, a circuit breaker, a converter, an isolation transformer, a contactor and a controller, and is characterized in that the energy storage battery module is connected with a direct current side of a converter module through the circuit breaker; the alternating current side of the converter module is connected with the low-voltage bus side of the box transformer substation through the isolation transformer and the contactor; a communication port of the controller is respectively connected with a communication port of the battery module and a communication port of the converter module, and an analog quantity port and a digital quantity port of the controller are connected with a secondary signal side of the box transformer substation; and the controller is used for correspondingly controlling a switch of the box-type transformer substation when the box-type transformer i