Notes - Chapter 10 Summary

The following notes are taken from Wind Turbine Technology by Ahmad Hemami.

• Turbine Controller
• Wind turbine cannot work properly without accurate controls
• monitors safe operation of turbine
• takes action to correct faults, change electrical loads, and manage startup and shutdown
• Mechanical and Electrical parameters much match for the balance of power in turbine
• Mechanical
• rotor speed
• torque on rotor
• power
• blade pitch control/pitch angle
• Electrical Parameters
• Voltage
• Frequency
• generator speed
• Can be designed for upwind or downwind configuration
• downwind turbines have self-alignment passive yawing
• Modern turbines have active yawing
• rotate nacelle with respect to the tower
• operating characteristic curve determines the power output at each wind speed
• look-up table in the turbine control system
• Wind Speed measured by anemometer
• smaller wind turbines work based on stall control
• power capacity lowers as wind speed increases beyond certain value
• Park position using turbine brakes

Back to ToC