Table of Contents 1. Introduction to a Wind Power System 2. LabVIEW Control Design and Simulation Module – A Tool to Research and Study the Wind Power System 3. Controller Design and Verification 4. Examples of Controller Design and Verification 5. Conclusion 6. Reference
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Introduction to a Wind Power System
The following figure shows the main components of a wind power system.
Figure 1. A Wind Power System and its Main Components
The main components of this system are the wind turbine, the mechanical drive train, the generator, the power grid, and the controller. The wind turbine converts the kinetic energy of the wind into mechanical energy. The generator converts the mechanical energy into electrical energy. The controller is the “brain” of the system. It ensures that the whole system works as expected.
The mechanical power Pmech is extracted from the wind. The following formula describes Pmech:
Pmech = 0.5 ρπR2v3Cp(λ,Ѳ) where Pmech is the mechanical power ρ is the air density R is the turbine’s radius v is the wind speed Cp is the power coefficient λ is the tip speed ratio Ѳ is the pitch angle λ is defined as:
where ωm is the turbine rotation speed R is the turbine’s radius v is the wind speed
The