1. Milki Wakweya Jennifer Long Fairman Campbell Pranav Boda Advisor: Dr. Ajjarapu

2.  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

3.  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.

5. Air-X Turbine Battery Bank DC Current/Voltage Sensors Capacity Sensor Circuit NI DAQ 6008 AC Current/Voltage Sensors RelayInverter Grid Load

6.  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

7.  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

8.  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

9.  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

10.  Users  ISU Student & Faculty  Uses  Research  Class Work  Showing to prospective students

11.  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

14.  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=70a2d5b11250a0e2027063c0ff aad080&itemid=310060201690&ff4=263602_263622

15.  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

16. Interface

17.  The tower mounted can’t withstand the high wind speed  Battery bank suffers complete discharge  Battery bank suffers overcharge  LabView interface gets outdated and not sufficient

18.  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

21. Sensor Circuits AC Current Sensor Battery Capacity Circuit DC Voltage Sensor

22.  Sensors  Capacity Circuit  Interface  Turbine & Battery

23. DC Voltage SensorCapacity Sensor DC Voltage Sensor

24.  Turbine, Battery & Inverter  Sensors & Interface  Sensor & Comparator