Condition monitoring and early fault diagnosis for wind turbines have become essential
industry practice as they help improve wind farm reliability, overall performance and productivity.
If not detected and rectified at early stages, some faults can be catastrophic with significant loss or
revenue along with interruption to the business relying mainly on wind energy. The failure of Wind
turbine results in system downtime and repairing or replacement expenses that significantly reduce
the annual income. Such failures call for more systematized operation and maintenance schemes to
ensure the reliability of wind energy conversion systems. Condition monitoring and fault diagnosis
systems of wind turbine play an important role in reducing maintenance and operational costs and
increase system reliability. This paper is aimed at providing the reader with the overall feature for
wind turbine condition monitoring and fault diagnosis which includes various potential fault types
and locations along with the signals to be analyzed with different signal processing methods