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http://dx.doi.org/10.3795/KSME-B.2013.37.8.789

Development of Programs to Analyze Mechanical Load Data of Wind Turbine Generator Systems and Case Studies on Simulation Data  

Bang, Je-Sung (Mechanical Systems Safety Research Division, Korea Institute of Machinery and Materials)
Han, Jeong-Woo (Mechanical Systems Safety Research Division, Korea Institute of Machinery and Materials)
Gil, Kyehwan (Pohang Accelerator Laboratory, Pohang Univ. of Science and Technology)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.8, 2013 , pp. 789-798 More about this Journal
Abstract
The procedures and relevant programs developed for analyzing mechanical load data of wind turbine generator systems, which are obtained through type certification tests, are verified. The following issues according to IEC 61400-13 are covered in the developed programs: data validation, time series analysis, summary load statistics, generation of fatigue load spectra, and estimation of equivalent loads. A capture matrix for normal power production is generated to determine whether the collected data sets are sufficient to carry out fatigue analysis. Fatigue load spectra are obtained through the rainflow counting method using 50 load ranges; finally, equivalent loads are calculated using different S-N curve slopes, m, according to the relevant materials. Case studies are performed using aero-elastic simulation data of the NREL 5 MW baseline wind turbine with a monopile foundation.
Keywords
Mechanical Load; Type Certification; Fatigue Load; Equivalent Load; Sensor Sensitivity; Zero Point Offset; Capture Matrix; Rainflow Counting Method; Turbulence Intensity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 IEC/TS 61400-13 ed. 1, 2001, "Wind Turbine Generator Systems - Part 13: Measurement of Mechanical Loads," IEC.
2 IEC 61400-12-1 ed. 1, 2005, "Wind Turbines - Part 12-1: Power Performance Measurements of Electricity Producing Wind Turbines," IEC.
3 Wagner, R., 2010, Accounting for the speed shear in wind turbine power performance measurement, PhD thesis, RisO National Laboratory for Sustainable Energy.
4 Cho, J., Hong, H., Bang, J., Park, J. and Ryu, J., 2007, "The Study of Load Measurement on U50 Wind Turbine," Journal of The Korean Society for New and Renewable Energy, Vol. 3, No. 4, pp.114-122.   과학기술학회마을
5 International Standard ISO 2533 ed. 1, 1975, "Standard Atmosphere."
6 Ryu, J., et al., 2007, A Study on Field Test for 750kW Gearless Type Wind Turbine, final report, Unison Co. Ltd..
7 Bannantine, J. A., Comer, J. J. and Handrock, J. L., 1990, "Fundamentals of Metal Fatigue Analysis," Prentice Hall, Englewood Cliffs, New Jersey 07632, pp. 184-196.
8 MATLAB R2012a Programming Fundamentals.
9 Jonkman, J., Butterfield, S., Musial, W. and Scott, G., 2009, "Definition of a 5-MW Reference Wind Turbine for Offshore System Development," NREL/TP-500-38060.
10 http://wind.nrel.gov/designcodes/preprocessors/turbsim/.
11 http://wind.nrel.gov/designcodes/simulators/fast/.