IEC 61400-50-3:2022/COR1:2023

© IEC 2023
INTERNATIONAL ELECTROTECHNICAL COMMISSION
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
IEC 61400-50-3 IEC 61400-50-3
Edition 1.0  2022-01 Édition 1.0  2022-01

WIND ENERGY GENERATION SYSTEMS – SYSTÈMES DE GÉNÉRATION D'ÉNERGIE
ÉOLIENNE –
Part 50-3: Use of nacelle-mounted lidars for wind
measurements Partie 50-3: Utilisation de lidars montés sur
nacelle pour le mesurage du vent

CO RRI G E NDUM 1
Corrections to the French version appear after the English text.
Les corrections à la version française sont données après le texte anglais.

4 Symbols and abbreviated terms
In the table, in the 22nd row before the end of the table (corresponding to ΔV ), replace "deg"
hor
with "m/s".
7.6.2.2 Horizontal wind speed uncertainty
After Formula (17), in "u is the calibration uncertainty of the reference sensor used to
cal
measure …", replace "V − u " with "V . u ".
hor cal hor cal
Table 1 – Summary of calibration uncertainty components
Renumber the entries in the table as follows, replacing the second "4" with a "5" and inserting
a "10" after "9":
IEC 61400-50-3:2022-01/COR1:2023-11(en-fr)

– 2 – IEC 61400-50-3:2022/COR1:2023
© IEC 2023
No. Component Type Description
Reference anemometer
1 B Calibration uncertainty of the reference
Calibration uncertainty, u
cal
anemometer sensor according to IEC 61400-
12-1:2017
2 B Anemometer class according to IEC 61400-12-
Operational characteristics, u
ope
1:2017
3 B Mounting uncertainty of the anemometer
Mounting,
u
mast
4 B Uncertainty of the reference anemometer due
Lighting finial, u
lgh
to due to lightning finial
B Data acquisition system uncertainty
Data acquisition, u
daq
Lidar probe length
6 B Horizontal wind flow variation within the lidar
Site effects, u
probe
probe volume
Height error Measurement errors due to wind shear
7 B Height difference between reference
Installation, u
vert _pos
anemometer and LOS due to installation of
optical head
8 B Height difference between reference
Measurement range, u
inc
anemometer and LOS due to measurement
range error
u
θ
r
Relative wind direction,
9 B Deviation from linearity and other instrument
Reference wind direction sensor, u
θ
uncertainties
10 B Uncertainty in the procedure of 7.5.6
Determination of line of sight, u
θ
los
Projection error Errors in the angle used in projection
11 B The inclinometers’ calibration uncertainty
Installation, u
φ
or the uncertainty of the direct measurement
of ϕ (e.g. theodolite)
12 B Uncertainty due to neglecting the contribution
Flow inclination, u
ψ
of Wsinϕ
Calibration measurements
13 Statistical uncertainty A
σN/
dev
Annex A − Example calculation of uncertainty of reconstructed parameters for
WFR with two lines of sight
A.2 Uncertainty propagation through WFR algorithm
In the second paragraph, replace fx ,, x .
...