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GROUND BREAKING ENERGY CONVERSION TECHNIQUES AND POWER TRANSMISSION
       DESIGN CONCEPTS IN ADVANCED AIRBORNE WIND TURBINE TECHNOLOGY
                                                                Govindarajan A Chittaranjan
                                                    CANWEA 2009 SEPTEMBER 20 – 23, 2009, TORONTO, ONTARIO

             ADAPTIVE DRIVE CONTROL FOR DYNAMIC PITCH CONTROL IN AIRBORNE WIND TURBINES WITH TRANSVERSAL AXIS
                                                                                                                                                                                       I         I   V

                                                           METHODOLODY                                                                     690 V AC Power Source                                                AC-AC Converter
                                                                                                                                                                                                                                                    PMSM


                                                                                                                                                                               V           I


                                                           •The system reads reference global position co-ordinates, the                                                                                                                               ω


                                                           wind speeds and the load dynamics                                               Over Current FAULT and Current
                                                                                                                                                     correction
                                                                                                                                                                                    Analogue Signal Processor V&I                            I

                                                                                                                                                                                                                                                       &T
                                                                                                                                                                                                                          Gate Pulse
                                                                                                                                                                                                                                             Feed
                                                                                                                                                                                                                                                       Feed
                                                                                                                                                                                                                                             back
                                                                                                                                                                                                                                                       back


                                                           •Computes & compares with its actual geostationary co-
                                                                                                                                   Wind speed & Load Sensor                            ADC
                                                                                                                                                                                                                        Pulse Generator



                                                           ordinates to generate the gating pulses for the rapid switching                         Pitch Position




                                                           duty cycle for the motor drive unit                                               Learning Table                                                           Reference Table




                                                                                                                                                                               Adaptive Fuzzy


                                                           •The Motor responds at rapidly to dynamically feather the rotor                                          Main     Controller with I & ω                  Speed [ω] Comparator
                                                                                                                                                                                   control
                                                                                                                                Altitude
                                                                                                                                                                    Module


                                                           blades which places the turbine at a per-determined                    Air
                                                                                                                                                                                                                    Torque [T] Comparator




                                                           geostationary coordinates.                                           Density
                                                                                                                                                                                                                    Current [I] comparator




                                                           THE FLOW DIAGRAM DIPECTS THE ADAPTIVE DRIVE
                                                                                                                                             GPS Reference                     GPS Comparator                           GPS Actual

                                                           CONTROL SYSTEM

INTRODUCTION                                               SPECIFICATIONS                                                    SIMULATIONS USING PSIM Version 6
                                                           • Transversal Axis – Twin Rotor
One of the primary concerns in an airborne wind
turbine without tethers is to stay geostationary without   • Helium Impregnated Technologies to keep wind turbine
getting blown away by the wind. To achieve this, the       airborne
pitch angle of the rotor blades has to be dynamically
                                                           • A positive cost benefit trade-off could be achieved by using
varied at high response rate and speed with bi-            ring generators of over 5 MW on each side
directional capabilities. Energy produced from the twin
generators’ is transmitted via RF mode                                                                                       ‫ 781 =ح‬Nm [range : 5 Nm to 187 Nm ]
                                                           • Adaptive MPC [Model Predictive Control] with multiple
                                                                                                                             P = 45 kW [ PMSM: 440 V/ 60 Hz/ 50 kVA]
                                                           referencing and learning abilities for a full bridge IGBT based
Due to system non-linearity and high load dynamics it                                                                        Vd = Vo = 440 V f = 20 kHz
                                                           VSI
would be difficult to optimize the parameters of a                                                                           PMSM: 50 kVA, 440V/60 Hz, η:95% J:0.18,
                                                                                                                             ω:2300, I:208.8 A
conventional PI controller for extended durations          • 3-Phase 45 kW PMSM 2300 rpm rated for 187 Nm for
hence for the same reason this solution is replaced by                                                                       VSI: IGBT: 1200V, 225A, 2.3V saturation, 85
                                                           dynamic feathering of the rotor blades.
a the adaptive neural network and fuzzy control                                                                              deg C.
                                                                                                                             Controller: PWM: 20V peak to peak; f=20kHz
system with multiple referencing and learning abilities    • The Active Filters to smooth out EMI, output ripple      and
to offer a Model Predictive Control [MPC] in the actual                                                                      DC Link: 880 mF, 440V 60Hz electrolytic
                                                           improve the Power Factor
Model.                                                                                                                       VSC: Full bridge Diode

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Airborne Technology Chittaranjan Poster Canwea 2009

  • 1. GROUND BREAKING ENERGY CONVERSION TECHNIQUES AND POWER TRANSMISSION DESIGN CONCEPTS IN ADVANCED AIRBORNE WIND TURBINE TECHNOLOGY Govindarajan A Chittaranjan CANWEA 2009 SEPTEMBER 20 – 23, 2009, TORONTO, ONTARIO ADAPTIVE DRIVE CONTROL FOR DYNAMIC PITCH CONTROL IN AIRBORNE WIND TURBINES WITH TRANSVERSAL AXIS I I V METHODOLODY 690 V AC Power Source AC-AC Converter PMSM V I •The system reads reference global position co-ordinates, the ω wind speeds and the load dynamics Over Current FAULT and Current correction Analogue Signal Processor V&I I &T Gate Pulse Feed Feed back back •Computes & compares with its actual geostationary co- Wind speed & Load Sensor ADC Pulse Generator ordinates to generate the gating pulses for the rapid switching Pitch Position duty cycle for the motor drive unit Learning Table Reference Table Adaptive Fuzzy •The Motor responds at rapidly to dynamically feather the rotor Main Controller with I & ω Speed [ω] Comparator control Altitude Module blades which places the turbine at a per-determined Air Torque [T] Comparator geostationary coordinates. Density Current [I] comparator THE FLOW DIAGRAM DIPECTS THE ADAPTIVE DRIVE GPS Reference GPS Comparator GPS Actual CONTROL SYSTEM INTRODUCTION SPECIFICATIONS SIMULATIONS USING PSIM Version 6 • Transversal Axis – Twin Rotor One of the primary concerns in an airborne wind turbine without tethers is to stay geostationary without • Helium Impregnated Technologies to keep wind turbine getting blown away by the wind. To achieve this, the airborne pitch angle of the rotor blades has to be dynamically • A positive cost benefit trade-off could be achieved by using varied at high response rate and speed with bi- ring generators of over 5 MW on each side directional capabilities. Energy produced from the twin generators’ is transmitted via RF mode ‫ 781 =ح‬Nm [range : 5 Nm to 187 Nm ] • Adaptive MPC [Model Predictive Control] with multiple P = 45 kW [ PMSM: 440 V/ 60 Hz/ 50 kVA] referencing and learning abilities for a full bridge IGBT based Due to system non-linearity and high load dynamics it Vd = Vo = 440 V f = 20 kHz VSI would be difficult to optimize the parameters of a PMSM: 50 kVA, 440V/60 Hz, η:95% J:0.18, ω:2300, I:208.8 A conventional PI controller for extended durations • 3-Phase 45 kW PMSM 2300 rpm rated for 187 Nm for hence for the same reason this solution is replaced by VSI: IGBT: 1200V, 225A, 2.3V saturation, 85 dynamic feathering of the rotor blades. a the adaptive neural network and fuzzy control deg C. Controller: PWM: 20V peak to peak; f=20kHz system with multiple referencing and learning abilities • The Active Filters to smooth out EMI, output ripple and to offer a Model Predictive Control [MPC] in the actual DC Link: 880 mF, 440V 60Hz electrolytic improve the Power Factor Model. VSC: Full bridge Diode