wind turbine design and implementation. team members members: luke donney lindsay short nick ries...
TRANSCRIPT
Wind Turbine Design and Implementation
Team Members
Members:Luke DonneyLindsay ShortNick RiesDario VazquezChris Loots
Advisor:Dr. Venkataramana Ajjarapu
Client:Dr. Dionysios Aliprantis
OverviewProject Scope
• Problem Statement & Proposed Solution• Requirements & Considerations
Components• Design• Implementation• Testing
Conclusion• Lessons Learned• Project Cost & Effort
Problem StatementOur goal was to design, implement, and then install a small-scale 500 to 2000 Watts wind turbine generator on the roof of Coover Hall. The turbine is an upwind, fixed-speed turbine that will provide 3-phase AC power to Coover Hall. We collaborated with mechanical engineering students to complete the project. Team members gained experience in wind energy and power system design, as well as learned how to design and build a control systems and gained experience in safe engineering.
Proposed Solution• Fixed speed, upwind, AC turbine• 3 blade design, each 4.6ft long• Rotor shaft transfers rotational energy to gearbox• Gearbox has a 10:1 ratio to rotate motor at 1800RPM.
Concept Sketch & Block Diagram
Functional Requirements• Generate an AC current• Supply an output of 500 to 2000 Watts• Supply power to the Coover Hall grid• Turn off in high wind speeds• Protect internal components from power
surge• Controls connect to a display to display data
Non-Functional Requirements• Enough space below the blades for a person
to stand under them safely• Comply with building code weight and
height limits• Components comply with federal and state
electrical regulations• Turbine type is fixed speed and upwind
Deliverables
Wind Turbine and Mounting TowerPower Protection and Control SystemsUser’s Manual
Risks & Considerations• The wind turbine was designed and built to
withstand the outdoors (temperature and
precipitation).
• The tower was built to withstand wind speeds up
to 120 MPH.
• The wind turbine was designed to be safe by
having multiple ways of controlling speed in order
to prevent damage and harm to humans.
Design (Methodology)
Our main objective in designing the turbine was for it tobe safe.
• Tower height• Furling tail• Brake• Protection circuit
Our second objective was to provide 500 to 2000 Watts of power. We chose 9.2 foot diameter blades.
Implementation (Methodology)
• Outdoor environment exposed to the elements• Nacelle housing provide shielding and ventilation• ¼ inch steel construction• Tower designed to support weight and torque applied from the nacelle
Testing (Methodology)To help with testing the entire system and to ensure it worked properly we first tested everything individually.
• Brake• Motor• Gearbox• Couplings• Controls• Electrical Protection
After we had proven these worked correctly we assembled the nacelle and blades to make sure all the parts fit and worked together correctly.
Nacelle Design
Nacelle Implementation
Nacelle TestingIn testing the nacelle, it is important to test it’s components. Therefore, before testing the nacelle as a whole, the following had to be tested• Brake• Blades• Gearbox• Motor
Motor Testing (Part 1)
Motor Testing (Part 2)
Controls Design
Controls Implementation (HW)
Controller Circuit Prototype
Hall Effect Switch
Disc with Magnets
Controls Implementation (SW)
Controls Testing
Protection Circuit DesignU 1
1 2
U 2
12
U 3
12
U 4
12
U 51 2
U 61 2
L 1
1
2
L 21 2
L 31 2
U 71 2
V 1
1 2 0 V a c
Thermal Magnetic Circuit Breakers
To Grid
Motor
Microcontroller
Motor ThermalSwitch
Motor Thermal Protection Relay
To Grid
Contactor
Under VoltageRelay
GeneratorSpeed Relay
Single Phasefrom Grid
V 3
1 2 0 V a c
Single Phasefrom Grid
Tower Design
Furling Tail Design
Rotate the nacelle out of wind at desired wind speed.
Work BreakdownLuke Donney - nacelle, brake
Lindsay Short - protection circuit
Nick Ries - testing and documentation
Dario Vazquez – microcontroller
Chris Loots – nacelle
Dustin Dalluge – tower, nacelle
Project Cost and Effort
Lessons Learned• To avoid confusion and unnecessary work, agree on one design early on.• Create a structured work plan, assign tasks to group members.• Break group into subgroups to get more work done faster.• Never assume you will get funding. Create a plan for the resources you already have.
Conclusion
Implemented and tested the nacelle and control systems.
Designed the tower, furling tail, and protection system for a future team to implement.
Left power measurement capability for a future team to implement.