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- 1. Design of Wind Turbine Controllers in SimulationX MAS407 Modelling & Simulation of Mechatronic Systems Autumn 2012 University of Agder, Norway Subodha Tharangi Ireshika Dimuthu Dharshana Kodippili Arachchige Bernard Sisara Gunawardana12/13/2012 1 Jagath Sri Lal Senanayake
- 2. Introduction Verifying Regions in Wind Power Controlling Design of Controllers Design of Gear Box Simulation Results Demonstration12/13/2012 2
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- 4. Wind High-speed Shaft Sensors Mechanical brake Gearbox Blade Generator Pitch drive Hub Yaw drives Rotor main shaft Main bearing12/13/2012 4
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- 6. Turbine starts generating power at lower set wind speed. Power increases with increase in wind speed up to a rated wind speed and rated power. Power output remains constant at rated power between the rated wind speed and the cut-out speed Turbines stops operating speeds higher than the cut-out speed12/13/2012 due to safety reason. 6
- 7. Region I• This is max-Cp region where the pitch angle is set to zero & the tip speed ratio is maintained at constant by varying the rotor speed.• The generator torque is controlled so that the rotor speed is proportional to wind speed.• In this max-Cp region, the generator torque control is active only, while the blade pitch controller is inactive.12/13/2012 7
- 8. Region II• This reveals a transition region between other two regions, that is the max-Cp(Region II) and power regulation region (Region III)• Maximum allowable tip speed is maintained• Variation of the λ is inversely proportional to the wind speed• Region transits when the obtainable air power reaches the nominal value12/13/2012 8
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- 11. 1. Torque controller 2. Pitch controllerPower Rotor Torque Controller Pitch Controller Speed Pn n E Region III D Region II Region I C A B ucut-in ub uc ucut-off ucut-in ub uc ucut-off Wind Speed Wind Speed 12/13/2012 11
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- 13. Power Wind Speed12/13/2012 13
- 14. Power Wind Speed12/13/2012 14
- 15. 1. Generator Torque Controller Reference Speed (W_ref) if u.y<5.811 then 0 else if u.y<10 then 6*n_gear*u.y/35 else if u.y<12.79 then w_nom else if u.y<=25 then w_nom else 0 Controller (PID1)12/13/2012 15
- 16. 2. Pitch ControllerTorqueController Tg_ref if u.y<12.79 then T_gen.y else if u.y<=25 then 2.1e6/W_ref.y else 0 pID_Pitch 12/13/2012 16
- 17. Wind Rotor & Gear System Generator Rotor & Gear System12/13/2012 17
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- 19. Gear Box with Planetary Gear System & Two Helical GearsThe Overall Gear Ratio = Max. Speed of the Generator Max. Speed of the Rotor = 94.68 = Planetary X Helical 1 X Helical 2 Gear Ratio Gear Ratio Gear Ratio Selected values 6 4 412/13/2012 19
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- 21. Torque Break controller Wind Torquecontroller signal signal captured 12/13/2012 21
- 22. • Diagram view12/13/2012 22
- 23. • 3D view12/13/2012 23
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- 25. SimulationX ResultsRegion A Operation [Wind speed is constant at 5 m/s] Wind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W] 12/13/2012 25
- 26. SimulationX ResultsRegion B Operation [Wind speed is constant at 8 m/s] Wind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W] 12/13/2012 26
- 27. SimulationX ResultsRegion C Operation [Wind speed is constant at 12 m/s] Wind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W] 12/13/2012 27
- 28. SimulationX ResultsRegion D Operation [Wind speed is constant at 18 m/s] Wind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W] 12/13/2012 28
- 29. SimulationX ResultsRegion E Operation [Wind speed is constant at 26 m/s] Wind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W] 12/13/2012 29
- 30. SimulationX ResultsWind speed is increased from 0 to 25 m/s in 60 seconds and remains at 25 m/s speedWind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W]12/13/2012 30
- 31. SimulationX ResultsWind speed is increased 5 m/s stepwise from 3 to 28 m/s in 90 secondsWind Speed [m/s] Generator Speed [rad/s]Available Wind Power [W] Generator Torque [Nm]Pitch Angle [deg] Generator Power [W]12/13/2012 31
- 32. SimulationX ResultsImpulse Response: Wind speed is increased from 8 to 13 m/s and decreased back to 8 m/s in 1s Wind Speed [m/s] Generator Speed [rad/s] Available Wind Power [W] Generator Torque [Nm] Pitch Angle [deg] Generator Power [W] 12/13/2012 32
- 33. SimulationX ResultsImpulse Response: Wind speed is increased from 11 to 16 m/s and decreased back to 11 m/s in 1s Wind Speed [m/s] Generator Speed [rad/s] Available Wind Power [W] Generator Torque [Nm] Pitch Angle [deg] Generator Power [W] 12/13/2012 33
- 34. SimulationX ResultsImpulse Response: Wind speed is increased from 14 to 19 m/s and decreased back to 14 m/s in 1s Wind Speed [m/s] Generator Speed [rad/s] Available Wind Power [W] Generator Torque [Nm] Pitch Angle [deg] Generator Power [W] 12/13/2012 34
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- 36. THANK YOU12/13/2012 36
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