@book{d8f0a385b92f4f7eb565a99d3e15ad14,
title = "ACCUWIND - Classification of five cup anemometers according to IEC 61400-12-1",
abstract = "The characteristics of five cup anemometers were investigated in detail, and data are presented in figures and tables. The characteristics include: normal wind tunnel calibrations; angular response measurements at 5, 8 and 11m/s; torque coefficient curvemeasurements from combined tilt and ramp-gust tests, torque coefficient curve measurements for non-tilted conditions; rotor inertia measurements and measurements of friction of bearings at temperatures -10°C to 40°C. The characteristics are fitted to twodifferent time domain cup anemometer models, and simulations of the cup anemometers are made with artificial wind generators to make classifications according to annex I and J of the standard IEC 61400-12-1 on power performance measurements. Results ofclassification are shown in graphs of systematic deviations and class index tables.",
keywords = "Vindenergi, Ris{\o}-R-1556, Ris{\o}-R-1556(EN)",
author = "{Friis Pedersen}, Troels and J.-{\AA}. Dahlberg and P. Busche",
year = "2006",
language = "English",
isbn = "87-550-3516-7",
series = "Denmark. Forskningscenter Risoe. Risoe-R",
number = "1556(EN)",
}