Prediction approaches of deterioration trend of operating stability of wind turbines and systematic research

Abstract

The prediction theories and approaches of stability deterioration trend were proposed through intensive studies against the operating stability and safety of complicated electromechanical systems in new energy equipment represented by conventional wind turbines, which provides the research foundation for improving the technical support level and scientific maintenance level of safety and stability of complicated electromechanical systems. In this research, the development rule of stability deterioration of electromechanical systems was revealed; the signal processing techniques for weak information of development trend of early failure were proposed; the feature extraction method for development trend of operating status of long-course load-variant electromechanical systems was proposed; and the prediction model and system for deterioration trend of operating stability of systems was constructed. The research achievement can be applied to the safety monitoring and fault warning of new energy equipment represented by wind turbines, which not only enhances the R&D level of related safety monitoring instruments, but also ensures safe and reliable operation of equipment and achieves scientific maintenance, improves the operation and management level of equipment, reduces the economic losses caused by failure, and promotes the utilization and development of green energy.