Abstract
Over the last 16 years, pioneering research work has resulted in significant progress in the area of acoustic emission condition monitoring of wind turbine blades. From laboratory static tests on small blades to laboratory full-scale fatigue tests, then to static field tests on actual wind turbines, we are now in the position to instrument and monitor in real time the structural integrity of rotating blades on operating machines with multichannel acoustic emission systems, via the Internet.
This chapter provides an overview of the research conducted, the various types of tests carried out, and the milestones in developing the application, and summarizes the recent developments on in-service monitoring of wind turbine blades during operation. Emphasis is given to the difficulties faced, the means these were overcome, the challenges that still need to be dealt with, and propositions for future work and research. Apart from summary results from the initial and subsequent laboratory experiments, characteristic results from recent long-term health monitoring of the blades of an operating machine with acoustic emission are presented. The importance of fusion of acoustic emission data with operational data from the wind turbine (wind speed, torque, RPM, etc.), for the proper assessment of the blade’s condition, is also demonstrated.
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References
H. Sutherland, A. Beattie, B. Hansche et al., The application of non-destructive techniques to the testing of a wind turbine blade. Sand. Natl. Lab. Rep., Ref: SAND93-1380.UC-261, New Mexico, USA, June 1994
A.A. Anastasopoulos, D.A. Kourousis, P. Vionis, V. Kolovos, Acoustic emission NDE of a wind turbine blade during full scale testing. Insight 41(6), 3 (1999)
P.S. Vionis, A.A. Anastasopoulos, V.K. Kolovos, D.A. Kouroussis, Non-destructive testing of full scale wind turbine blade by means of acoustic emission monitoring during controlled static loading, in Wind Energy for the Next Millennium, Proceedings of 1999 European Wind Energy Conference, Acropolis Convention Centre, Nice, France, 1–5 March, 1999, pp. 691–694
D. Kouroussis, A. Anastasopoulos, P. Vionis, V. Kolovos, Acoustic emission monitoring of a 12m wind turbine FRP blade during static and fatigue loading, in Emerging Technologies in NDT, Proceedings of the 2nd International Conference on Emerging Technologies in NDT, Athens, Greece, 24–26 May, 1999, eds. by D. Van Hemelrijck, A.A. Anastasopoulos and T. Philippidis, © 2000 Balkema, Rotterdam, ISBN 90 5809 127 9, pp. 59–66
D. Kouroussis, A. Anastasopoulos, P. Vionis, V. Kolovos, Unsupervised pattern recognition of acoustic emission from full scale testing of a wind turbine blade. J. Acoust. Emission 18, 217–223 (2000)
A.G. Dutton, M. Blanch, P. Vionis, V. Kolovos, D.R. Van Delft, P. Joosse, A. Anastasopoulos, D. Kouroussis, T. Kossivas, J. ter Laak, T. Philippidis, Y. Kolaxis, G. Fernando, G. Zheng, T. Liu, A. Proust, Acoustic emission monitoring from wind turbine blades undergoing static and dynamic fatigue testing. Br. J. NDT Insight 42(12), 805–808 (2000)
A.A. Anastasopoulos, D.A. Kouroussis, V.N. Nikolaidis, A. Proust, A.G. Dutton, M. Blanch, L.E. Jones, P. Vionis, D.J. Lekou, D.R.V. van Delft, P.A. Joosse, T.P. Philippidis, T. Kossivas, G. Fernando, Structural integrity evaluation of wind turbine blades using pattern recognition analysis on acoustic emission data. J. Acoust. Emission 20, 229–237 (2002)
A.A. Anastasopoulos, D.A. Kouroussis, A.G. Dutton, M.J. Blanch, P. Vionis, D.J. Lekou, D.R.V. van Delft, P.A. Joosse, A. Proust, T.P. Philippidis, T. Kossivas, G. Fernando, Real-time evaluation of wind turbine blades with acoustic emission monitoring during certification tests. NDT.net. 7, 9, http://www.ndt.net/v07n09.htm
M.J. Blanch, D.A. Kouroussis, A.A. Anastasopoulos, V.N. Nikolaidis, A. Proust, A.G. Dutton, L.E. Jones, P. Vionis, D.J. Lekou, D.R.V. van Delft, P.A. Joosse, T.P. Philippidis, T. Kossivas, G. Fernando, Analysis of acoustic emission, acousto-ultrasonic and infra red thermography data from ten small wind turbine blade tests. Global Windpower. Paris, France, 2002
D.J. Lekou, P. Vionis, P.A. Joosse, D.R.V. van Delft, D. Kouroussis, A. Anastasopoulos, M.J. Blanch, A.G. Dutton, A. Proust, Full-scale blade testing enhanced by acoustic emission monitoring. EWEC 2003 Proceedings, European Wind Energy Conference and Exhibition, Madrid, Spain, 16–19 June 2003
M.J. Blanch, A.G. Dutton, Acoustic emission monitoring of field tests of an operating wind turbine, damage assessment of structures, Proceedings of the 5th International Conference on Damage Assessment of Structures (DAMAS 2003), Southampton , UK, 1–3 July 2003
D. Lekou, F. Mouzakis, A. Anastasopoulos, D. Kourousis, Fused acoustic emission & vibration techniques for health monitoring of wind turbine gearboxes and bearings. Scientific Proceedings of European Wind Energy Conference, Marseille, France, pp. 78–82
Development and Demonstration of a Novel Integrated Condition Monitoring System for Wind Turbines – NIMO, Seventh Framework Programme of the European Community (2007–2013), Theme: 7, Energy, Activity Code: ENERGY-2007-2.3-04 Demonstration of large scale systems for on-and off-shore wind farms, http://www.nimoproject.eu/
D. Kourousis, D. Lekou, N. Tsopelas, D. Papasalouros, Fr. Mouzakis, A. Anastasopoulos, Health monitoring of wind turbine blades with acoustic emission (in Greek), Proceedings of the 7th Νational Conference of the Hellenic Society of Non-Destructive Testing (HSNT), entitled: The Contribution of Non Destructive Testing for the Safe of Small and Big Works and Constructions, NTUA, Athens, Greece, 15–17 October 2010
N. Tsopelas, D. Kourousis, I. Ladis, A. Anastasopoulos, D.J. Lekou, F. Mouzakis, Health monitoring of operating wind turbine blades with acoustic emission. Proceedings of the 5th International Conference on Emerging Technologies in Non Destructive Testing, UOI, Ioannina, Greece, 19–21 September 2011, pp. 347–352
D. Papasalouros, N. Tsopelas, I. Ladis, D. Kourousis, A. Anastasopoulos, D.J. Lekou, F. Mouzakis, Health monitoring of a NEG-MICON NM48/750 wind turbine blade with acoustic emission. Proceedings of the 30th European Conference on Acoustic Emission (EWGAE) & 7th International Conference on Acoustic Emission, Granada, Spain, 12–15 September 2012, pp. 67–80
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Acknowledgment
Most of the research leading to the results presented herein has received funding from the European Community’s Non-Nuclear energy program under contract number JOR3-CT98-0283 and Seventh Framework Programme (FP7/2009-2013) under grant agreement no. 239462.
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Tsopelas, N.K., Papasalouros, D.G., Anastasopoulos, A.A., Kourousis, D.A., Dong, J.W. (2015). Acoustic Emission for Structural Integrity Assessment of Wind Turbine Blades. In: Shen, G., Wu, Z., Zhang, J. (eds) Advances in Acoustic Emission Technology. Springer Proceedings in Physics, vol 158. Springer, New York, NY. https://doi.org/10.1007/978-1-4939-1239-1_34
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