WIND TURBINE ENERGY CONVERSION SYSTEM DESIGN

AND INTEGRATION

Advisor: Venkataramana Ajjarapu

May 10-17 Project TeamElsammani 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 RequirementsItem Cost

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 200W0W

100W 200W100W

300W 200W100W

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

Transmitter

LabVIEW Interface

Sensor Readings

Motor Control

Charge Control

Sensor Readings Read values in from sensors

Used DAQ, NI USB-6008

Multiplied readingsVoltage by 7.926Current by 10

Motor Control Provided by Zhongjian Kang Used from library

On/OffVoltage 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 systemChanged voltage

multiple Motor Control

With complete system

ProblemsDelayed Response

Charge ControlUnable to useNeeds values from

batteryManual operation

RPM SensorHardwareDAQ and SoftwareFluctuationsIn System

Testing(contd.) DC Sensors

Verified with analog sensor readings

Motor CouplingVibrationsProper Leveling

Power vs Speed

400 600 800 1000 1200 1400 1600 1800 20000

50100150200250300350400

Speed (RPM)

Pow

er (W

atts

)

ConclusionIn 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?