The Design of Vibration Data Acquisition and Intelligent Fault Diagnostic System for Wind Turbine

In this paper, a vibration data acquisition and intelligent fault diagnostic system is introduced. Firstly, the vibration data acquisition subsystem based on LabView is described in detail. It consists of a wind turbine and a rotor test bed. There are twelve vibration sensors on wind turbine including axial and radial direction. The vibration data acquisition subsystem is including 16 channels. Software analysis modules can realize real-time data acquisition and analysis, off-line data analysis, trend analysis, fault simulation and graphical result display. The familiar vibration faults, unbalance of rotor and radial rubbing of rotor, are produced and tested artificially. Then, a Wavelet Neural Network (WNN) is used to do vibration trend prediction.