METHOD AND SYSTEM FOR MONITORING WIND TURBINE GENERATOR VIBRATION

摘要

The present invention provides a method and system for monitoring vibrations in a wind turbine generator, and in the method a rule base for the range of vibration characteristic values is established on the basis of a large quantity of historical data by a data mining method based on a rough set, then the range of vibration characteristic values is predicted (S22) from the real-time operation data of the wind turbine generator according to the rules extracted from the rule base, the threshold of the vibration characteristic values is calculated S24), and finally a judgment for a false alarm is made by comparing the real-time data of the wind turbine generator' s operation characteristic values with the above-mentioned threshold of the vibration characteristic values (S26).