Wind Turbine Simulation(Phase IV)SDMAY 12-24

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

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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.

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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

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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

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PWM Generator

Rectifier / Boost-BuckGeneratorMotor CouplingVFD LoadRPM

Sensor

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Measurement From 3-phase Generator

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MATLAB Model for Rectifier/Buck-Boost Circuit

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Schematic for PWM generator

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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

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

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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

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Any Questions??

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