Acoustic condition monitoring of wind turbines: Tip faults

Acoustic condition monitoring of wind turbines: tip faults

As a significant and growing source of the world’s energy, wind turbine reliability is becoming a major concern. At least two fault detection techniques for condition monitoring of wind turbine blades have been reported in early literature, i.e. acoustic emissions and optical strain sensors. These require off-site measurement. The work presented here offers an alternative non-contact fault dete...

Quantification of Condition Monitoring Benefit for Offshore Wind Turbines

Condition monitoring (CM) systems are increasingly installed in wind turbines with the goal of providing component-specific information to wind farm operators, theoretically increasing equipment availability via maintenance and operating actions based on this information. In the offshore case, economic benefits of CM systems are often assumed to be substantial, as compared with experience of on...

Online Nonintrusive Condition Monitoring and Fault Detection for Wind Turbines

Developing RCM strategy for wind turbines utilizing e-condition monitoring

Renewable energy sources such as wind energy are available without any limitations. In order to extract this energy efficiency, the reliability of such technologies is critical if pay back periods and power generation requirements are to be met. Due to recent developments in the field of wind engineering and in particular the expansion of installed capacity around the world, the need for reliab...

Observer Based Detection of Sensor Faults In Wind Turbines

An observer based scheme is proposed to detect sensor faults in wind turbines. In the example used for the proposed scheme the wind turbine drive train is considered. A model of the drive train is used to design the observer, and in this model the wind speed is an important input, however, if an unknown input observer the fault detection scheme can be non dependent on the actual wind speed. The...