Microgrid secondary control clock synchronization method with delay robustness

The invention relates to the technical field of micro-grid operation control, and discloses a micro-grid secondary control clock synchronization method with delay robustness. The method comprises the following steps: establishing a local hardware clock model of each distributed power supply, and introducing a correction coefficient to obtain a corrected logic clock reading; transmitting local information to a neighbor node, when a certain node receives neighbor node information, sampling the local information, estimating the relative frequency of a local clock and a neighbor clock by applying a random approximation method, calculating auxiliary variable information, and on the basis, if the neighbor clock is faster than the local clock or is closer to the same reference node, and when an event triggering condition is met, updating a local clock correction coefficient to realize synchronization with a neighbor clock, and finally, determining a secondary control moment according to the corrected logic clock, an