Method and system for protecting alternating current charging pile based on current control

The invention relates to the technical field of circuit protection, in particular to an alternating current charging pile protection method and system based on current control, and the method comprises the steps: recording a temperature value, larger than a temperature threshold value, of environment temperature data of an alternating current charging pile; calculating a temperature correction coefficient according to the temperature threshold, the temperature value and the acquisition period; recording a humidity value, greater than the humidity threshold value, of the environment humidity data of the AC charging pile; calculating a humidity correction coefficient according to the humidity threshold, the humidity value and the acquisition period; calculating a current adjustment coefficient according to the temperature correction coefficient and the humidity correction coefficient; obtaining an initial charging current according to a historical output current of the AC charging pile; and the charging current