This paper describes a model free method for monitoring and fault diagnosis of the elements in a rotor system for a wind turbine. The diagnosis as well as the monitoring is done without using any model of the wind turbine and the applied controller or a description of the wind profile. The method is based on available standard sensors on wind turbines. The method can be used both on-line as well as off-line. Faults or changes in the rotor system will result in asymmetries, which can be monitored and diagnosed. This can be done by using the multi-blade coordinate transformation. Changes in the rotor system that can be diagnosed and monitored are: actuator faults, sensor faults and internal blade changes as e.g. change in mass of a blade.
|Title of host publication||Proceedings of the American Control Conference (ACC 2016)|
|Publication status||Published - 2016|
|Event||American Control Conference (ACC 2016) - Boston, United States|
Duration: 6 Jul 2016 → 8 Jul 2016
|Conference||American Control Conference (ACC 2016)|
|Period||06/07/2016 → 08/07/2016|