Milki WakweyaJennifer LongFairman CampbellPranav Boda

Advisor:Dr. Ajjarapu

In 2008 President Geoffrey introduced the Live green program which called for environmentally conscious living. In light of this initiative, it was decided to actively assemble a wind turbine that would supply power to Coover hall and reduce our carbon footprint

The goal of our project is to install and implement a wind turbine system into the Coover Hall grid. The system is designed to produce 1200 watts when all phases are completed but during our phase the output will be 400 watts. The turbine is an AIR X permanent magnate generator. The inverter is an OUTBACK grid tie inverter with a capacity of 2500VA. Our design focused on sensing and outputting values from the circuit.

Air-X Turbine

Battery Bank

DC Current/Voltage Sensors

Capacity Sensor Circuit

NI DAQ 6008

AC Current/Voltage Sensors

RelayInverter

Grid

Load

Manufactured by Southwest Wind Power

DC Wind Turbine Produces 400 W @

28mph Braking system

included

http://www.windenergy.com/documents/spec_sheets/3-CMLT-1339-01_Air_X_Spec.pdf

Produce 400 watts of electrical energy to the Coover Grid at 120 volts with a 60 Hz frequency

Convert turbine DC voltage to useable AC voltage

Sensing circuits read DC and AC voltages and currents

Sensing circuits send information to display on a computer using LabView

Protect batteries from total discharge Turbine is mounted high enough to receive non

turbulent wind

All wiring and electrical work complies with university and state electrical codes and regulations

Battery bank is in controlled temperature and stable environment

Tower mounting complies with building standards

Turbine is mounted high enough to allow maintenance to walk under turbine

AirX turbine capable of producing 400 Watts

Outback inverter capable of converting 2500VA of DC to AC

Sensing circuitry that can sense DC and AC voltage and current

LabView interface capable of output sensing circuitry inputs

Users ISU Student & Faculty

Uses Research Class Work Showing to prospective students

To ensure the sensing circuitry was working correctly we simulated each circuit individually and tested it with the LabView interface

Testing the turbine we made sure the turbine control would work as specified to prevent overcharge on battery bank

Wired up the inverter to check if the DC was getting fully converted to AC

Manufactured by Electrol

10 Amp Rating Input from 5.5-

10VDC Disconnects

inverter from the load

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=310060201690&rvr_id=&crlp=1_263602_263622&UA=WXF%3F&GUID=70a2d5b11250a0e2027063c0ffaad080&itemid=310060201690&ff4=263602_263622

An NI 6008 DAQ is used to display the chosen parameters

The device takes its inputs from the sensors

The DAQ connects to a computer which displays the parameter values and their waveforms using LabView

These values are then stored in an Excel spreadsheet for future reference

Interface

The tower mounted can’t withstand the high wind speed

Battery bank suffers complete discharge

Battery bank suffers overchargeLabView interface gets outdated and

not sufficient

Tower will be mounted by professional

Inverter has a charger to prevent total discharge

Turbine has controller that will not allow overcharging

Update the interface and excel file. Expand its functions

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AC Current Sensor

Battery Capacity Circuit

DC Voltage Sensor

SensorsCapacity Circuit InterfaceTurbine & Battery

DC Voltage Sensor Capacity Sensor

DC Voltage Sensor

Turbine, Battery & InverterSensors & InterfaceSensor & Comparator