Control method of wing-shaped sail boosting system under complex marine meteorological condition

A wing-shaped sail boosting system control method under the complex marine meteorological condition comprises the steps that a sail is rotated to the angle with the minimum stress, an action mechanism of the sail is controlled to achieve rising of the sail, and according to the angle where the sail is rotated to be capable of providing the maximum boosting force, the ship motion load of one year of the northern Atlantic Ocean is taken as the standard; the actual motion load of a ship is monitored, whether sail descending is needed or not is judged, the current working state of a sail and the state of the ship are evaluated, whether changes of conditions such as the working condition, the meteorological environment, the ship motion and the abnormal condition exist or not is judged, and sail descending needs to be conducted according to a corresponding control method. And rotating the sail to an angle with the minimum stress to prepare to descend the sail, controlling an action mechanism of the sail to realize