Advisor: Venkataramana Ajjarapu May 10-17 Project Team Elsammani Ahmed Hassan Burawi Brandon Janssen Kenneth Thelen Functional Requirements Supply stand-alone load Simulate wind Maximize turbine power use Display turbine and battery power Measure turbine speed Resource Requirements Item Cost Coupling $112 Current Transducer $21 Stop Switch $16 Display Materials $15 Kikusui Power Supply 3-phase AC Motor $0 Total $164 $0 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 200W 100W 200W 100W 200W Wind Power<Load 300W 0W Wind Power>Load 100W 200W 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 7.926 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 Unable to use In system Needs values from Changed voltage battery Manual operation multiple Charge Control Motor Control RPM Sensor With complete system Hardware Problems DAQ and Software Delayed Response Fluctuations In System Testing(contd.) DC Sensors Verified with analog sensor readings Motor Coupling Vibrations Proper Leveling Power vs Speed 400 Power (Watts) 350 300 250 200 150 100 50 0 0 500 1000 Speed (RPM) 1500 2000 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?