A charging trolley storage battery charge and discharge control system based on an AC-DC conversion device

The invention discloses a charging trolley storage battery charge and discharge control system based on an AC-DC conversion device. The system comprises a flyback switching power supply and a charge and discharge control module connected to the flyback switching power supply. The flyback switching power supply comprises an EMI filter module, an AC / DC conversion device, a high-frequency transformer and a loop compensation module. By analyzing the change of voltage and current in the working process of the storage battery, the system of the present invention reasonably controls the working process of the storage battery so as to ensure and improve the cycle usage life of the storage battery. According to the AC-DC conversion device of the invention, an external starting circuit is omitted, and the power consumption of a starting portion can be substantially reduced. The system of the invention employs a sealed triode to realize starting; the standby power dissipation is low, and the speed is fast. The system