Power supply auxiliary system of energy storage converter

The invention discloses a power supply auxiliary system of an energy storage converter. The power supply auxiliary system comprises a power supply part, a power supply adjusting module, a bus, an output voltage adjusting module arranged at the output end of the bus, an acquisition module arranged at the power supply part, and a controller connected with the acquisition module, the power supply adjusting module and the output voltage adjusting module. According to the application, the power supply part is arranged to be the multiple power supply circuits, the acquisition modules are arranged on the power supply circuits, the power supply adjusting modules are arranged between the multiple power supply circuits and the bus, the power supply adjusting modules and the acquisition modules are connected with the controller, and the controller controls the power supply adjusting modules according to the acquired power supply voltages of the power supply circuits. The stability and flexibility of power taking are ens