DC converter control method, control terminal and storage medium

The invention provides a DC converter control method, a control terminal and a storage medium. The input end of the direct-current converter is connected with the uncontrolled rectifier, and the output end of the direct-current converter is used for supplying power to a load; the direct-current converter adopts a voltage loop and current loop control mode; the control method comprises the following steps: acquiring an output current and a voltage loop error of the DC converter; if the output current is smaller than the first preset current and the voltage loop error is smaller than a preset error value, determining a target integral coefficient according to the output current and the voltage loop error; setting an integral coefficient of the current loop PI controller as a target integral coefficient; wherein the preset error value is a negative value. When the load of the direct-current converter is suddenly unloaded, the integral coefficient of the current loop PI controller is adjusted according to the out