An SHM View of a CFD Model of Lillgrund Wind Farm

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Abstract:

Reliability of offshore wind farms is one of the key areas for the successful implementation of these renewable power plants in the energy arena. Failure of the wind turbine (WT) in general could cause massive financial losses but especially for structures that are operating in offshore sites. Structural Health Monitoring (SHM) of WTs is essential in order to ensure not only structural safety but also avoidance of overdesign of components that could lead to economic and structural inefficiency. A preliminary analysis of a machine learning approach in the context of WT SHM is presented here; it is based on results from a Computational Fluid Dynamics (CFD) model of Lillgrund Wind farm. The analysis is based on neural network regression and is used to predict the measurement of each WT from the measurements of other WTs in the farm. Regression model error is used as an index of abnormal response.

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164-169

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June 2014

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[1] J.A. Dahlberg, Assessment of the Lillgrund Windfarm: Power Performance, Wake Effects. Technical report. Vattenfall AB, September, (2009).

Google Scholar

[2] A.C.W. Creech, W. -G. Früh, and P. Clive, Wind Energy Vol. 15 (6) (2012), pp.847-863.

Google Scholar

[3] A.C.W. Creech, W. -G. Früh & A.E. Maguire, Bilbao, Spain (2013).

Google Scholar

[4] A.C.W. Creech, W. -G. Früh & A.E. Maguire: submitted to journal of Fluid Mechanics (2013).

Google Scholar

[5] M.D. Piggott, C.C. Pain, G.J. Gorman, P.W. Power, & A.J.H. Goddard, Ocean modelling Vol. 10 (2004), pp.95-113.

Google Scholar

[6] F. Bertagnolio, N. Sørensen, J. Johansen and P. Fugslang. Wind turbine airfoil catalogue. Technical report, Risø National Laboratory (2001).

Google Scholar

[7] N. Jarrin, S. Benhamadouche, D. Laurence and R. Prosser, Int. Journal of Heat Fluid Flows Vol. 27 (2006), pp.585-593.

Google Scholar

[8] M. Bishop, Neural networks for pattern recognition, Oxford University Press (1995).

Google Scholar

[9] M. Bishop, Pattern recognition and machine learning, Springer Press (2006).

Google Scholar

[10] T. Nabkey, Netlab algorithms for pattern recognition, Springer (2004).

Google Scholar

[11] K. Worden, W.J. Staszewski and J.J. Hensman, Mechanical Systems and Signal Processing Vol. 25 (2011), Issue 1, pp.4-111.

Google Scholar