Authors: Hyers, R. W.; Mcgowan, J. G.; Sullivan, K. L.; Manwell, J. F.; Syrett, B. C.

Source: Energy Materials: Materials Science and Engineering for Energy Systems, Volume 1, Number 3, September 2006 , pp. 187-203(17)

Publisher: Maney Publishing

Included in the following Connect Compilations:

• Volume 1, Number 3: Advanced materials for future nuclear reactors

Abstract:

The state of the art in condition monitoring in wind turbines, and related technologies currently applied in practice and under development for aerospace applications, are reviewed. Condition monitoring systems estimate the current condition of a machine from sensor measurements, whereas prognosis systems give a probabilistic forecast of the future condition of the machine under the projected usage conditions. Current condition monitoring practice in wind turbine rotors involves tracking rotor imbalance, aerodynamic asymmetry, surface roughness and overall performance and offline and online measurements of stress and strain. Related technologies for monitoring of load history and fatigue crack growth in aircraft structures are evaluated for their applicability to wind turbine blades. Similarly, condition monitoring practice in wind turbines is compared with monitoring and prognosis in helicopter gearboxes. The state of the art in condition monitoring of electronic controls, power electronics and towers is also evaluated and compared with the state of the art in aerospace. Based on these comparisons, technology needs and future challenges for the development of condition monitoring and prognosis for large wind machines, both onshore and offshore, are summarised.

Keywords: WIND ENERGY; CONDITION MONITORING; PROGNOSIS

Document Type: Review Article

DOI: http://dx.doi.org/10.1179/174892406X163397

Publication date: 2006-09-01

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• From volume 5 onwards, Energy Materials is published as a virtual journal covering current research on materials for energy generation and storage drawn from the journals of the Institute of Materials, Minerals and Mining. The content reflects the broad range of materials contributions within this increasingly important sector and serves as a focus for the growing community with an interest in energy materials research and applications.
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