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Maximum Power Extraction for a Wind Turbine Generator with No Wind Speed Sensor. United Arab Emirates University College of Engineering Department of Electrical Engineering. Graduation Project 2. Aaesha Shamsi 200310855 Maryam Dhanhani 200312324
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Maximum Power Extraction for a Wind Turbine Generator with No Wind Speed Sensor United Arab Emirates UniversityCollege of EngineeringDepartment of Electrical Engineering • Graduation Project 2 • Aaesha Shamsi 200310855 • Maryam Dhanhani 200312324 • Khadejah Zeyoudi 200312457 • Supervisor: Dr Hassan Nikkhajoei • Spring 2009
Outline • Renewable Energy • Step By Step to Reach • Objectives • Wind Conversion System • Microcode Studio Plus • Components • Implemented System • Testing & Results • EAGLE • Soldering & Wire Wrapping • Environmental Issues • Conclusions & Recommendations
Renewable Energy Renewable energy has become one of the most important areas of research and development
Objectives • Investigate effectiveness of the proposed maximum power tracking method and compare its performance with that of the conventional methods through computer simulations • Implement and test a laboratory-scale wind energy system to demonstrate viability and effectiveness of the proposed maximum power tracking method
Wind Conversion System Transformer Generator Wind Turbine Capacitor Three phase rectifier Threephase inverter Powergrid
Microcode Studio Plus • Program most PIC 16F87x (A) and 18Fxxx(x)
Microcode Studio Plus • PIC 16F877 was used
Microcode Studio Plus Code 360o 20 ms 60o x X = (60 x 20)/360 = 3.3 ms
Components • Components to implement the rectifier: • Microcontroller (PIC16F877) • Optocouplers (4N32) • Drivers (IR2304) • Plus transformers (PT4E) • IGBTs (TO-220AB)
Components • Microcontroller: • Small and low-cost type of computer that runs a program stored in non-volatile memory.
Components • Driver: • Link between the microcontroller and pulse transformer • Translate the low energy reference signals from the microcontroller into high energy power signals to the pulse transformer
Components • Pulse transformer : • Type of pulse transformer is PT4E • Minimize voltage drop, , rise time, and pulse distortion
Components • IGBT: insulated gate bipolar transistor
Components • Optocoupler: • Isolated data between subsystems with different voltage levels
Microcontroller GND 5V • Optocoupler (4N32) Microcontroller (PIC16F877)
Three Phase Bridge Rectifier 15V GND • Driver (IR2304) • IGBT (TO-220AB) 1k Ω • 8 • 8 1μ • 7 • 3 3 • 3 • 6 • 6 10μ • 5 • 4 • 4 • 4 1k Ω
Implementation of PI Controller Op-amp (LM741CN)
Testing and Results PIC Microcontroller
Testing and Results PIC Microcontroller & Optocoupler Output Input
Testing and Results Output of the first and the forth optocoupler 1/50Hz = 20 ms 360o 20 ms 180 10 ms
Testing and Results Driver input &output Input Output Output
Testing and Results The high and the low output of the driver
Testing and Results The output of the three phase rectifier Theoretical Output Actual Output
PCB & EAGLE Correction EAGLE Schematic PIC socket Optocoupler IGBT Pulse transformer Driver
PCB & EAGLE Correction EAGLE Layout
Conclusions • Three phase bridge rectifier is implemented • Some of the results was as expected