Studies on Prediction Method of Multi-transform Domains and Non-linear Fault Trend Oriented to Wind Turbine

摘要

Chinese wind power industry is in the ascendant.The hidden fault development trend prediction technology will become increasingly important for improving the efficiency of wind turbines.Faced to the changing condition and non-stationary character of equipment,this paper proposed a data-based multi-transform domains non-linear fault trend prediction technique.The mechanical systems physical information and failure prediction value information was integrated in this technique.Multi-transform domains and non-linear dimensionality reduction method used to analysis equipment working state and extract failure feature of topology domain.This technique try to solve the problem that fault development information is often flooded by irregular state change information.