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WindTurbine Functions

WindTurbine Module

Directory List

AirfoilData Blade ControlAlgos
ControlDesign Demos/ControlDesign Demos/DeviceDesign
Demos/DynamicModels Demos/Multibody DeviceDesign
DynamicModels Generator Mechanical
Multibody Sim Utility
WindData WindModel


AirfoilData

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Computes lift, drag and moment coefficients.
Computes lift, drag and moment coefficients for an airfoil.
Loads an airfoil file with the file extension .af

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Blade

Torque produced by a wind turbine rotor using Glauert
Two dimensional blade element model for a VAWT.

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ControlAlgos

Custom Pitch Control Algorithm
Offset Pitch Control Algorithm
Sine Pitch Control Algorithm

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ControlDesign

Computes drag using an anayltical model
Computes lift using an analytical model
Constant wind model that returns power and angles of attack.
Wind model with constant velocity and angle.
Computes sign. If x >= 0 it equals 1.

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Demos/ControlDesign

Simulate a doubly fed inductance generator.
Demonstrate pitch control.
VAWT Simulation.

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Demos/DeviceDesign

Design a dual rotor axial flux generator.
Double Multiple Streamtube with straight 2-bladed VAWT
Double Multiple Streamtube with straight 3-bladed VAWT
Preliminary design of a 5 MW wind turbine.

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Demos/DynamicModels

Simulate a horizontal axis 3 blade wind turbine.
Demonstrates a switched reluctance generator.
Simulate a servo mechanism.
Simulate a vertical wind turbine.

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Demos/Multibody

Test a multibody wind turbine model.

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DeviceDesign

Design a dual rotor generator configuration.
Determine size of pitch motor based on driving acceleration

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DynamicModels

Computes inflow velocity, blade Reynold's number and angle of attack
Double Multiple Streamtube Model.
Horizontal Axis Wind Turbine Dynamics.
Improved Gormont Dynamic Stall Model.
= length(d.m);
Rotational dynamics model.
Static Stall Model
VAWT blade model with a pitch controller.
Vertical wind turbine model.

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Generator

Doubly fed induction generator model equilibrium voltages.
Doubly fed induction generator model.
Permanent magnet machine model in ABC coordinates.
Permanent magnet machine model in ABC coordinates with 6 switches.
Permanent magnet brushless machine in DQ coordinates.
Pitch servo model.
Right hand side for a 3 phase reluctance motor or generator.

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Mechanical

Equivalent bearing load and bearing life.
Calculates the stress acting on coupling.
Calculates maximum drag force acting on a plate-shaped blade.
Computes torque and angular rate for a gearbox.
Maximum allowable torque and safe horsepower capacity for helical gear.
Calculates moment at a hinge joint.
Calculates torque transfer and factor of safety.
Approximates the mass moment of inertia about a point on the blade
Calculates the tensile and shear stresses acting on a rectangular beam
Calculates maximum bending stress on a rotating beam.
Maximum allowable torque and safe horsepower capacity for spur gear.
Calculates minimum rotor shaft bearing distance.
Calculates the minimum throat area for a fillet weld.

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Multibody

Computes the aerodynamic force and torque of each surface in the rotor

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Sim

Default Wind Turbine Tachometer Model. For use in WTSim.m.
Default Wind Turbine Blade Model. For use in WTSim.m.
Multi-body VAWT Model. For use in WTSim.m as the "Blades" block.
Default Wind Turbine Blade Model. For use in WTSim.m.
Default Wind Turbine Controller. For use in WTSim.m.
Default Wind Turbine Controller. For use in WTSim.m.
Default Wind Turbine Converter Model. For use in WTSim.m.
Default Wind Turbine Estimator. For use in WTSim.m.
Default Wind Turbine Estimator. For use in WTSim.m.
Wind Turbine DFIG model. For use in WTSim.m.
Default Wind Turbine generator model. For use in WTSim.m.
Default Wind Turbine generator model. For use in WTSim.m.
Default Wind Turbine Grid Model. For use in WTSim.m.
Default Wind Turbine Structure Model. For use in WTSim.m.
Default Wind Turbine Tachometer Model. For use in WTSim.m.
Default Wind Turbine Tachometer Model. For use in WTSim.m.
Default Wind Turbine Transmission Model. For use in WTSim.m.
Default Wind Turbine Wind Model. For use in WTSim.m.
Default Wind Turbine Wind Sensor Model. For use in WTSim.m.
Parse the i/o data structure into inputs, outputs, states and params.
Setup file for use in WTSim.m. Uses WT_DFIG for the Generator model.
Default setup file for wind turbine simulation. For use in WTSim.m.
Setup file for vertical axis wind turbine sim. For use in WTSim.m.
GUI for running wind turbine simulations

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Utility

Compute actuator disk area and power coefficient.
Compute area and power coefficient using actuator disk theory.
Betz limit for maximum power extractable from the air.
Blade solidity.
Coefficient of power as a function of pitch and lambda.
Compute the power coefficient as a function of tip speed.
Draw a horizontal axis wind turbine.
Draw a vertical axis wind turbine.
Lift and drag coefficients for an airfoil.
Obstruction turbulent flow height.
Compute power and power coefficient using actuator disk theory.
Reynolds number.
Torque produced by a wind turbine rotor.
Torque produced by a VAWT wind turbine rotor.
VAWT Aspect ratio.
Wind shear.
Wind shear exponent
Compute the power from a wind turbine.

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WindData

Loads a NREL GIS Shapefile for wind.
Outputs wind data given latitude and longitude.
Gives the wind power class

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WindModel

Creates a Kaimal filter.
Wind model.
Creates a wind admittance filter.
Wind class.
Deterministic wind model. Models tower effect.
Surface wind profile.
Stochastic wind model.
The hours that the wind is between v(k) +/- dV/2.

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SVN Revision: 42334


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