Multi-time-scale optimization operation method and device for hydrogen-electricity coupling system

The invention relates to a multi-time-scale optimization operation method and device for a hydrogen-electric coupling system. The method comprises the steps that S1, the structure of the hydrogen-electric coupling system is obtained; s2, on the basis of the obtained hydrogen-electricity coupling system and the model thereof, on the premise that the load side cooling heating and power demand is met, the output of each device is coordinated, and a day-ahead optimization scheduling model is established with the goal of ensuring that the operation cost of the hydrogen-electricity coupling system is the lowest; s3, obtaining a predicted value of each equipment output interval in the hydrogen-electricity coupling system, and distributing the output of each equipment by adopting a day-ahead optimization scheduling model based on the predicted value; and S4, obtaining the actual measurement value of the output interval of each device in the hydrogen-electricity coupling system, and optimizing the output of each devic