10-min SCADA · Q4 2024 · n=288
24 h rolling signal, T07
Avg Wind Speed
11.4
m/s · hub height
Avg Power Out
2,314
kW · rated 3,000
Rotor Speed
16.2
rpm · rated 16.7
Nacelle Temp
38.7
°C · ambient 4.1°C
Availability
97.2
% · OEM SLA 95%
Grid Curtailment
3.1
% of potential
Wind Speed · Power · Rotor RPM · Temp
10-min intervals · 24 h window
| Time | v_hub (m/s) | P_out (kW) | RPM | T_nacelle (°C) | T_gearbox (°C) | Pitch (°) | Status |
|---|
IEC 61400-12-1 · 0.5 m/s bins
Measured vs Contractual power curve
Power Curve Scatter — T07
Green = within 2% · Red = underperformance
Bin Statistics
| Bin (m/s) | Meas (kW) | Contract (kW) | Δ% |
|---|
Performance KPIs
AEP Loss
−4.2%
vs design
Cp at 10 m/s
0.441
max 0.463
Cut-in
3.5
m/s measured
Rated Wind
13.1
m/s observed
CMS · SCADA fault log · Q4 2024
Event & fault classification
Fault Frequency by Category
Count · 90-day window
| Timestamp | Fault Code | System | Description | Duration | P_loss (kWh) | Severity | Resolution |
|---|
CMS Vibration · 25.6 kHz · Blade + Drivetrain
FFT spectrum — main bearing axial
Power Spectral Density — OB + IB Main Bearing
Log scale · Hz
Bearing Fault Frequencies — BPFO
BPFO = (n/2) · RPM/60 · (1 − Bd/Pd·cos α)
n = 14 rollers, α = 10°
@ 16.2 RPM → f_BPFO = 1.74 Hz
1× = 0.27 Hz (shaft)
3P = 0.81 Hz (blade pass)
Detected Peaks
| Freq (Hz) | Amplitude (dB) | Tag | Status |
|---|
Z-score · Isolation Forest · Rolling σ
Multivariate anomaly scoring
Sensitivity Controls
Anomaly Score — Gearbox Temp Residual
— flagged events
| # | Time | v_hub | T_gear raw | T_gear pred | Residual | Z-score | Flag |
|---|