Table of Contents

FOREWORD<br>INTRODUCTION<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Symbols and units<br>5 Power performance method overview<br>6 Preparation for performance test<br>7 Test equipment<br>8 Measurement procedure<br>9 Derived results<br>10 Reporting format<br>Annex A (normative) - Assessment of influences caused<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;by wind turbines and obstacles at the test site<br>Annex B (normative) - Assessment of terrain at the test<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;site<br>Annex C (normative) - Site calibration procedure<br>Annex D (normative) - Evaluation of uncertainty in<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;measurement<br>Annex E (informative) - Theoretical basis for determining<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the uncertainty of measurement using the method of<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;bins<br>Annex F (normative) - Wind tunnel calibration procedure<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;for Anemometers<br>Annex G (normative) - Mounting of instruments on the<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;meteorological mast<br>Annex H (normative) - Power performance testing of small<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;wind turbines<br>Annex I (normative) - Classification of cup and sonic<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;anemometry<br>Annex J (normative) - Assessment of cup and sonic<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;anemometry<br>Annex K (normative) - In-situ comparison of anemometers<br>Annex L (normative) - The application of remote sensing<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;technology<br>Annex M (informative) - Normalisation of power curve data<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;according to the turbulence intensity<br>Annex N (informative) - Wind tunnel calibration procedure for<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;wind direction sensors<br>Annex O (informative) - Power performance testing in cold<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;climate<br>Annex P (informative) - Wind shear normalisation procedure<br>Annex Q (informative) - Definition of the rotor equivalent wind<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;speed under consideration of wind veer<br>Annex R (informative) - Uncertainty considerations for tests on<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;multiple turbines<br>Annex S (informative) - Mast flow distortion correction for lattice<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;masts<br>Bibliography<br>Annex ZA (normative) - Normative references to<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;international publications with their<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;corresponding European publications

Abstract

Defines a procedure for measuring the power performance characteristics of a single wind turbine and applies to the testing of wind turbines of all types and sizes connected to the electrical power network.

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Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	PEL/88
Supersedes	BS EN 61400-12 : 1998 02/207950 DC : DRAFT JULY 2002 15/30267585 DC : 0