Advisor: Venkataramana Ajjarapu May Project Team Elsammani AhmedHassan Burawi Brandon JanssenKenneth Thelen

Functional Requirements  Supply stand-alone load  Simulate wind  Maximize turbine power use  Display turbine and battery power  Measure turbine speed

Resource Requirements ItemCost Coupling$112 Current Transducer$21 Stop Switch$16 Display Materials$15 Kikusui Power Supply $0 3-phase AC Motor$0 Total$164

Schedule

Wind Turbine/Inverter  Air X 400W  24VDC  Internal voltage regulation/charge control  Outback GTFX2524  24VDC  2500VA Operation  Grid-tie Inverter  Internal over current and under voltage protection

Three Operating Situations  Wind Power=Load  Wind Power<Load  Wind Power>Load 200W 0W 100W 200W100W 300W200W100W

Turbine Drive Turbine coupled with 3-phase induction motor Motor controlled with adjustable power supply Kikusui PCR 6000W Power supply controlled with LabVIEW

DC Sensors  LEM LA 55-P Current Transducer  Battery and Turbine Current  Voltage Divider

RPM Sensor  Hardware Design  NI USB 6008 DAQ  LabVIEW  Universal Use Receiver Transmitte r

LabVIEW Interface  Sensor Readings  Motor Control  Charge Control

Sensor Readings  Read values in from sensors  Used DAQ, NI USB-6008  Multiplied readings Voltage by Current by 10

Motor Control  Provided by Zhongjian Kang  Used from library On/Off Voltage and Frequency control  Single input  Ratio of 220 V / 50 Hz

Charge Control  Done using conditional statements  Compared battery voltage  Compared battery current

Testing  Sensor Readings With power supplies In system Changed voltage multiple  Motor Control With complete system Problems Delayed Response  Charge Control Unable to use Needs values from battery Manual operation  RPM Sensor Hardware DAQ and Software Fluctuations In System

Testing(contd.)  DC Sensors Verified with analog sensor readings  Motor Coupling Vibrations Proper Leveling

Power vs Speed

Conclusion In the beginning of this project, we had very high hopes. There were a lot of different aspects we hoped to expand upon from the previous group, and a lot of interesting ideas we wanted to implement. Unfortunately, due to the budget constraints halting the installation of the turbine outside, and the loss of much of the previous teams work, many of these ideas were not realized. However, we are happy that we have provided a more professional and useable test-bed for the turbine, as well as a RPM sensor that may be used for a plethora of different projects in the future. Our only objective that we expected to deliver upon and failed was the full utilization of available wind power. Throughout this semester, many different solutions for this problem were brought up, but each of them failed to accomplish what we wanted. The final idea of simulating pitch control through the software interface is one that we are confident will work, but bugs in the design of the control as well as time constraints on designing and testing it have made it impossible to complete. All of this being said, our group wishes to thank Zhongjian Kang, Lee Harker, and Dr. Ajjarapu for all their help and support throughout the project.

Questions?