Browse > Article
http://dx.doi.org/10.12652/Ksce.2015.35.1.0001

Study on Combined Use of Inclination and Acceleration for Displacement Estimation of a Wind Turbine Structure  

Park, Jong-Woong (University of Illinois at Urbana-Champaign)
Sim, Sung-Han (Ulsan National Institute of Science and Technology)
Jung, Byung-Jin (Korea Maritime and Ocean University)
Yi, Jin-Hak (Korea Institute of Ocean Science and Technology)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.35, no.1, 2015 , pp. 1-8 More about this Journal
Abstract
Wind power systems have gained much attention due to the relatively high reliability, good infrastructures and cost competitiveness to the fossil fuels. Advances have been made to increase the power efficiency of wind turbines while less attention has been focused on structural integrity assessment of structural sub-systems such as towers and foundations. Among many parameters for integrity assessment, the most perceptive parameter may be the induced horizontal displacement at the hub height although it is very difficult to measure particularly in large-scale and high-rise wind turbine structures. This study proposes an indirect displacement estimation scheme based on the combined use of inclinometers and accelerometers for more convenient and cost-effective measurements. To this end, (1) the formulation for data fusion of inclination and acceleration responses was presented and (2) the proposed method was numerically validated on an NREL 5 MW wind turbine model. The numerical analysis was carried out to investigate the performance of the propose method according to the number of sensors, the resolution and the available sampling rate of the inclinometers to be used.
Keywords
Wind turbine; Indirect displacement estimation; Structural health monitoring; Measurement data fusion; Parametric study;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Lee, J. J., Ho, H. N. and Lee, J. H. (2012). "A vision-based dynamic rotational angle measurement system for large civil structures." Sensors, Vol. 12, No. 6, pp. 7326-7336.   DOI   ScienceOn
2 Nassif, H. H., Gindy, M. and Davis, J. (2005). "Comparison of laser doppler vibrometer with contact sensors for monitoring bridge deflection and vibration." NDT&E International, Vol. 38, No. 3, pp. 213-218.   DOI
3 Park, J.-W., Sim, S.-H. and Jung, H.-J. (2013). "Displacement estimation using multimetric data fusion." ASME/IEEE transactions on Mechatronics, Vol. 18, No. 6, pp. 1675-1682   DOI
4 Berg, D. and Zayas, J. (2001). "Accurate time-linked data acquisition system field deployment and operational experience." Proceedings of the 2001 ASME Wind Energy Symposium, Reno, Nevada, pp. 153-161.
5 Celibi, M. (2000). "GPS in dynamic monitoring of long-period structures." Soil Dynamics and Earthquake Engineering, Vol. 20, No. 5, pp. 477-483.   DOI
6 Foss, G. and Haugse, E. (1995). "Using modal test results to develop strain to displacement transformations." Proceeding of 13th International Model Analysis Conference, Nashville, Tennessee, pp. 112-118.
7 Jeon, H., Bang, Y. and Myung, H. (2011). "A paired visual servoing system for 6-DOF displacement measurement of structures." Smart Materials and Structures, Vol. 20, No. 4, 045019.   DOI
8 Jonkman, J., Butterfield, S., Musial, W. and Scott, G. (2009). Definition of a 5-MW reference wind turbine for offshore system development. Technical Report NREL/TP-500-38060 February 2009.
9 Jonkman, B. J. and Kilcher L. (2012). TurbSim User's Guide: Version 1.06.00. NREL Technical Report September 2012.
10 Jonkman, J. M. and Buhl, M. L. (2005). FAST User's Guide. Technical Report NREL/EL-500-38230 August 2005.
11 Lee, H. S., Hong, Y. H. and Park, H. W. (2010). "Design of an FIR filter for the displacement reconstruction using measured acceleration in low-frequency dominant structures." International Journal for Numerical Methods in Engineering, Vol. 82, No. 4, pp. 403-434.   DOI
12 Lee, J. J. and Shinozuka, M. (2006). "A vision-based system for remote sensing of bridge displacement." NDT & E International, Vol. 39, No. 5, pp. 425-431.   DOI