Cooperative control method for loop closing impact current of power distribution network with power supply in consideration of switch delay

The invention relates to the technical field of power distribution network loop closing management and control, in particular to a power distribution network loop closing impact current cooperative control method considering switch delay and provided with a power source. Comprising the steps of acquiring power distribution network operation parameters online; the optimal loop closing moment is calculated online in real time; calculating a closed-loop impact current and a non-periodic component thereof; calculating the maximum value of the non-periodic component of the loop closing impact current before loop closing when the power of the distributed power supply is not adjusted; calculating the distributed power supply power enabling the maximum value of the aperiodic component to be minimum, and taking the distributed power supply power as a power control instruction; and the power distribution control center sends a power control instruction to the distributed power supply, adjusts the output power of the di