ee/cs 481 spring 1 ee/cs 4 2008 january, 2008 university of portland school of engineering project...

EE/CS 481 Spring

January, 2008 1University of Portland School of Engineering

EE/CS 4 2008

Project MerlinWOC60:Wind Output Converter to 60Hz

TeamTammy OkuboWill AcordaMeghan Tisdell

AdvisorDr. Wayne Lu

Industry RepresentativeMs. Swetha Varadharajan Intel

EE/CS 481 Spring


EE/CS 4 2008

Overview

• Introduction• Scorecard• Additional Accomplishments• Plans• Issues/Concerns• Conclusions

EE/CS 481 Spring


EE/CS 4 2008

IntroductionWOC60

InverterBattery Bank

12 volts DC120 AC voltage

60HzWind

TurbineAIR-X

zoom in

PIC Microprocessor

Transistors Driving

MOSFETsMOSFETs Transformer

Over Current Limiter Circuit

Phase 1Phase 2

Primary Side

Safety Transistors

Voltage Sensor Circuit

Secondary

Side

Current Sensing Resistors(Safety)

ON or OFF?

No current through

MOSFETs

Allow current through

MOSFETs

ON

OFF

metisdel

Briefly explain what your project does, why it is significant, and who will benefit from itThis is helpful to remind the audience what you are designingInclude a picture, block diagram, or other graphic

EE/CS 481 Spring


EE/CS 4 2008

ScorecardTasks Completed:• Completed Design Review• Measured and recorded output information from UPS• Ordered partsShortcoming(s):• Complete circuit design and simulationTeam Merlin was not able to complete circuit design, but will be finalizing the circuit and its components this week. This was due to the fact that emphasis was placed on completing some sort of simulation using PSPICE, B2Spice, etc. However, they have been advised by there advisor to start building and not worry about simulation at this point.

metisdel

List the previous month's plansShow what was completed, focus on things that were done (not started)Describe any shortcomings and explain why

EE/CS 481 Spring


EE/CS 4 2008

Additional Accomplishments

• Stand built for AIR-X

metisdel

List any additional accomplishmentsInclude from 3-5 of themLimit to the past month

EE/CS 481 Spring


EE/CS 4 2008

Plans

• Complete Theory of Operations 0.9• Finalize circuit design• Construct and test the design (circuit)• Build battery bank• Receive all the parts ordered

metisdel

List your team's plans for the next monthInclude from 3-5 of themRemember, the following month we will check to see that you did these things

EE/CS 481 Spring


EE/CS 4 2008

MilestonesNumber Description Original Previous Present

1 Put together wind turbine 11/14/07 11/14/07 1/22/08

2 Order Parts 12/14/07 12/14/07 1/28/08

3 Complete Circuit Design 11/30/07 11/30/07 2/8/08

4 Parts Received 01/14/08 01/14/08 2/8/08

5 Begin Constructing Circuit 2/1/08 2/1/08 2/8/08

6 Build battery bank and interface with wind turbine 11/23/07 11/23/07 2/17/08

7 Theory of Operations 1.0 2/22/08 2/22/08 2/22/08

8 Complete PIC program 01/14/08 01/14/08 3/3/08

9 Interface PIC and Circuitry 02/14/08 02/14/08 3/3/08

10 Complete Building 02/28/08 02/28/08 3/10/08

11 Test, Debug 03/22/08 03/22/08 03/22/08

12 Collect Output Data, Package 03/30/08 03/30/08 03/30/08

13 Prototype Release 04/04/08 04/04/08 04/04/08

14 Founder’s Day 04/08/08 04/08/08 04/07/04

15 Final Report 1.0 04/25/08 04/25/08 04/25/08

EE/CS 481 Spring


EE/CS 4 2008

Concerns/Issues

• Behind scheduleSolution: Keep focused and commit the team to the

deadlines specified. No other choice!• Building without having done a complete

simulation - Could not simulate using software such as

PSPICE last semester and during Christmas Break. Advised to stop simulating and start the building process as simulation will take too much time.

Solution: Extra safety/careful verifications of numbers/values

metisdel

List your concerns/issuesBe prepared to discuss some possible solutions and what you plan to do about itDo not include "Having enough time" or "project will work"; instead, focus on important problems

EE/CS 481 Spring


EE/CS 4 2008

Conclusions• Design Review Approved• AIR-X put together (Stand and device interfaced)• Ordered Parts• Plans:

– Theory of Operations 0.9– Finalize circuit design– Build battery bank– Construct and test design (circuit)– Receive all the parts ordered

• Many changes have occurred with ‘Milestones’ and therefore, no choice but to keep to those deadlines

• Any Questions?

metisdel

Recap your main pointsProvide a sense of closureAsk the audience if "anyone has a question?"

ee/cs 481 spring 1 ee/cs 4 2008 january, 2008 university of portland school of engineering project...

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