Abstract
The paper describes the implementation of a dynamic monitoring system at a 2.0 MW onshore wind turbine. The system is composed by two components aiming at the structural integrity and fatigue assessment. The first component enables the continuous tracking of modal characteristics of the wind turbine (natural frequency values, modal damping ratios and mode shapes) in order to detect abnormal deviations of these properties, which may be caused by the occurrence of structural damage. On the other hand, the second component allows the estimation of the remaining fatigue lifetime of the structure based on the analysis of the measured cycles of structural vibration.
Highlights
Wind power is one of the most attractive alternatives to conventional energy solutions
In that sense, monitoring systems developed to remotely assess the condition of these structures could be very useful to attest the real condition of the wind turbine
The monitoring system is based on Operational Modal Analysis (OMA) techniques [1], in which the modal properties of the structure are continuously tracked over the different operating conditions of the wind turbine
Summary
Wind power is one of the most attractive alternatives to conventional energy solutions. In that sense, monitoring systems developed to remotely assess the condition of these structures could be very useful to attest the real condition of the wind turbine. The monitoring system is based on Operational Modal Analysis (OMA) techniques [1], in which the modal properties of the structure (natural frequencies, modal damping ratios and mode shapes) are continuously tracked over the different operating conditions of the wind turbine. This strategy has already proven to be suitable to be installed both in onshore and offshore [2]
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