Wind turbulence is the random & chaotic variation in wind speed and direction produced by atmospheric pressure, temperature, topography, and barriers.
Wind turbulence can alter the aerodynamic forces on wind turbine blades, resulting in mechanical stress, wear, and noise.
Electrical design software may simulate wind turbulence using several methods, including
- Stochastic models,
- Spectral models, and
- Wind field models.
These methods can provide realistic & representative wind speed profiles that fluctuate over time and space and feed them into the wind turbine model.
Power quality is a measure of the way the wind turbine’s electrical power fulfills the grid or load criteria and requirements. Wind turbulence can lead to power quality concerns such
- Voltage swings,
- Flicker, &
- Frequency deviations.
These concerns can have an impact on electrical equipment performance and lifespan, as well as consumer safety and comfort.
Under various wind turbulence conditions, electrical design software may analyze the power quality of wind turbine output using metrics such as
- Voltage & current waveforms,
- Power factor,
- Total harmonic distortion,
- Flicker severity, and
- Frequency responsiveness.
Power stability refers to the wind turbine power system’s capacity to maintain regular operation while recovering from disturbances.
Wind turbulence can create power stability issues such
- Voltage drops,
These issues can cause power outages, damage to electrical components, & loss of synchronization with the grid (or) load. Electrical design software can use methodologies such as
- Transient stability analysis,
- Small-signal stability analysis, and
- Voltage stability analysis
to assess the power stability of a wind turbine power system under various wind turbulence situations.
Electrical design software may propose and analyze wind turbulence reduction strategies for wind turbine power systems.
These include using flexible and robust wind turbine controllers to adjust pitch angle,
- Rotor speed, and
- Generator torque to wind speed variations,
- Power electronic converters to regulate output voltage and frequency and increase grid or load compatibility,
- Energy storage devices to store excess (or) deficient power & smooth out fluctuations, and
- Power quality compensators to filter harmonics, flicker, and
in order to prevent cascade failures, protection devices are being deployed to detect & isolate faults, overloads, as well as reactive power from the wind turbine.