Wind Turbine Simulation (Phase IV) SDMAY Advisor: Dr. Venkataramana Ajjarapu

Group Members  Brian Alexander (Computer Engineering)  Lon Bromolson (Electrical Engineering)  Jarid Strike (Electrical Engineering)  Chase Schaben (Electrical Engineering) SDMAY 12-24

Project Description  Computer controlled motor is coupled with generator from wind turbine  Turbine power is used to drive inverter w/ AC load  Measurements are taken using DAQ USB-6008, and imported into LabVIEW SDMAY 12-24

Problem Statement  Existing system:  Load primarily uses batteries  System does not efficiently use wind energy  Weak motor  Model for new system:  Wind turbine primarily powers load  Batteries are used as backup  PC provides user-friendly interface SDMAY 12-24

 Functional Requirements  Turbine voltage is rectified and converted to provide consistent 24V output  Inverter will provide AC voltage to 2 light bulbs  The turbine can generate a 300W continuous output  The anemometer and wind vane will transmit wind profiles from locations on campus  The motor will simulate outdoor wind speed  The wind turbine will supply the battery bank when the voltage is below 24V  The turbine will not exceed power ratings on load SDMAY 12-24

 Non-Functional Requirements  The final project will include a user’s manual  The project will be documented through technical manual and in-depth schematics  Technology Requirements  LabVIEW interface must accurately calculate variables and display them for the user to see  Wind data must be read and input into LabVIEW in real-time  All sensor and control equipment must be connected with LabVIEW SDMAY 12-24

LabVIEW Interface  Control wind speed simulation motor  Read measurements from:  Wireless real wind data (Serial Input)  RPM (Digital Input via NI USB-6008)  CT sensors (Analog Input via NI USB-6008)  Voltage Divider (Analog Input via NI USB-6008)  Obtain plots that can be analyzed using Excel.  Wind(mph) vs. Power (W), etc. SDMAY 12-24

 Available Outputs:  Motor voltage  PWM generator  Available Inputs:  Wind speed measured by anemometer  Motor RPM measured by Hall sensor  Turbine current measured by current transducer and USB-6008  Inverter current measured by current transducer and USB-6008  Battery voltage measured by USB-6008 LabVIEW Interface

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Motor Control  Existing motor could not provide consistent high- speed output without overloading/overheating  We are replacing this 370W induction motor with new 1.5 HP (1.1 kW) induction motor  This will require a new bracket to mount the motor SDMAY Figure from Wikipedia “File:VFD System.png”

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Load/Battery/Turbine Solution  Rectify three-phase output of generator  Up/Down convert voltage level to 24 V  Control energy storage SDMAY 12-24

PWM Generator Rectifier / Boost-Buck Generator Motor Coupling VFD Load RPM Sensor SDMAY 12-24

Measurement From 3-phase Generator SDMAY 12-24

MATLAB Model for Rectifier/Buck-Boost Circuit SDMAY 12-24

Schematic for PWM generator SDMAY 12-24

Test Plan  Run system for a long period (few days or few weeks) while simulating actual wind speed conditions  Measure power generation of wind turbine over time  Measure battery voltage over time SDMAY 12-24

Estimated Cost $175 – 1.5 HP Motor $40 – Coupling $45 – Mounting brackets $20 – Other electrical components $280 – Total $500 – Budget SDMAY 12-24

Planned Tasks  Order new motor and couple to generator  Develop power management circuitry  Finish simulation  Build circuit  Test circuit  Run full system test  Finalize LabVIEW interface and write user’s manual  Finalize all documentation and website SDMAY 12-24

Any Questions?? SDMAY 12-24