I.S. EN 61400-12-1:2017/AC:2021-06
Current
The latest, up-to-date edition.
Wind energy generation systems - Part 12-1: Power performance measurement of electricity producing wind turbines
Hardcopy , PDF
English
02-07-2021
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FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Power performance method overview
6 Preparation for performance test
7 Test equipment
8 Measurement procedure
9 Derived results
10 Reporting format
Annex A (normative) Assessment of influences caused by wind turbines and obstacles at the test site
Annex B (normative) Assessment of terrain at the test site
Annex C (normative) Site calibration procedure
Annex D (normative) Evaluation of uncertainty in measurement
Annex E (informative) Theoretical basis for determining the uncertainty of measurement using the method of bins
Annex F (normative) Wind tunnel calibration procedure for anemometers
Annex G (normative) Mounting of instruments on the meteorological mast
Annex H (normative) Power performance testing of small wind turbines
Annex I (normative) Classification of cup and sonic anemometry
Annex J (normative) Assessment of cup and sonic anemometry
Annex K (normative) In-situ comparison of anemometers
Annex L (normative) The application of remote sensing technology
Annex M (informative) Normalisation of power curve data according to the turbulence intensity
Annex N (informative) Wind tunnel calibration procedure for wind direction sensors
Annex O (informative) Power performance testing in cold climate
Annex P (informative) Wind shear normalisation procedure
Annex Q (informative) Definition of the rotor equivalent wind speed under consideration of wind veer
Annex R (informative) Uncertainty considerations for tests on multiple turbines
Annex S (informative) Mast flow distortion correction for lattice masts
Bibliography
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