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CONTROL SYSTEM IMPLEMENTATION
What ‘Control System’ mean for a Wind Turbine
• Yawing of nacelle• Blade pitch adjustment
Yawing by a closed loop control system
• What was yawing?• Contents of the system– Direction sensor– Motor– Microcontroller & Circuitry
Yawing by a closed loop control system
– Direction sensor
Yawing by a closed loop control system
– Motor
Yawing by a closed loop control system
– Microcontroller & Circuitry• PIC 16F877
Blade pitch adjusment by a closed loop control system
• What was pitch adjustment?• Contents of the system– Linear position sensor– Motor– Microcontroller
Blade pitch adjusment by a closed loop control system– Motor
Blade pitch adjusment by a closed loop control system– Linear position sensor
Sensors used in control system
Three types of sensors:• Angular direction sensor for
yawing• Linear position sensor for pitch
adjustment• Angular resolver for speed
measuring
Sensors used in control system
• Angular direction sensor for yawing
Sensors used in control system
• Linear position sensor for pitch adjustment
Sensors used in control system
• Angular resolver for speed measuring
Motors to be used
• Step motor with high torque– High torque High Current
• DC motor with a gear box– Needs additional device for feedback
Putting all together
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