Fault early warning method for double-fed fan main shaft
A fault warning and main shaft technology, which is applied in the monitoring of wind turbines, wind turbines, prediction, etc., can solve the problem that the constant threshold warning cannot meet the warning requirements, and achieve the goal of ensuring the accuracy of fault prediction, occupying less memory, and improving the accuracy of prediction Effect
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[0049] In order to illustrate the technical solutions of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The embodiments of the present invention and their descriptions are only for explaining the present invention, and are not intended to limit the present invention.
[0050] The flow chart of a fan shaft failure early warning method based on the improved LightGBM described in the embodiment of the present invention is as follows figure 1 As shown, the specific implementation steps are as follows:
[0051] S1: Select the main shaft temperature and its related data from the fan equipment, and perform data preprocessing to form the original data set: the specific steps include:
[0052] S1.1: The data related to the main shaft temperature comes from a doubly-fed fan;
[0053] S1.2: For the missing data in the original data set, an artificial experience value within ...
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