STRUCTURAL HEALTH MONITORING FOR WIND TURBINE SYSTEMS

Abstract

Wind turbine systems are subjected to different type of faults. These faults have highly impact on decreasing the availability of the wind systems. So, different techniques have been used in renewable energy system to detect these faults and hence reducing the downtime of renewable energy system. Different faults that occurring on the main components of the wind turbine have been discussed in details. In addition, the stages of structural health monitoring as collecting data from sensors and processing the data by using different methods have been explained according to different faults. Recently, new technology for crack detection has been used to detect internal crack for the wind concrete foundation. Moreover, crack has been focused more by determining the types of crack occurring in wind turbine foundation and what are the causes of crack deterioration on wind structures. Finally, experimental part has been done in the lab to investigate the crack deterioration on the modelled beam. Fibre Bragg Grating, FBG sensor has been used in the lab for strain measurements. This type of sensors has many advantages over the other types, which are immunity to the electromagnetic interference, small size, and multiplexing, robustness and having long life capability.