Control method for safe propeller retracting of variable propeller system

The invention provides a control method for safe pitch collection of a pitch control system. The control method comprises the steps that data of the pitch control system are collected; processing the data of the variable pitch system by adopting the fault prediction model to obtain a predicted fault degree; when the predicted fault degree is a major fault, the variable pitch system carries out a pitch retracting operation; according to the method, the problem that the current fault degree of the variable pitch system cannot be predicted under the condition that the signals cannot be synthesized when the propeller retracting control is carried out by judging that the abnormal degree of the signals exceeds the threshold value in the prior art is solved. 本发明提供了一种变桨系统的安全收桨的控制方法，包括：采集变桨系统的数据；采用故障预测模型处理变桨系统的数据，得到预测故障程度；在预测故障程度为重大故障时，变桨系统进行收桨操作；本发明解决了现有通过判断信号的异常程度超过阈值的方式进行收桨控制，存在无法综合各信号的情况，对变桨系统当前的故障程度进行预测的问题。