To address the issue of non-linear correlation between SCADA data of wind turbine units
a feature crossover mechanism was introduced and improved
and used for monitoring status of wind turbine gearboxes. Firstly
a two-stage cross feature selection method was proposed
which comprehensively considered the causality
correlation and data distribution differences among variables to screen features with strong hidden associations and low redundancy for cross-selection. Secondly
the factorization machine was improved by crossing only the benchmark variables within the cross feature group with the remaining variables
significantly shortened the generation time while generating reasonable cross features. Finally
the improved feature crossover algorithm was applied to the condition monitoring task of gearboxes in a certain wind farm. The results show that the proposed method
combined with five models
can achieve excellent effects and significantly improve the models' monitoring performance.
关键词
Keywords
references
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