CUTTHROAT ENERGY Preliminary Design Review

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Overview

Electrical Layout

The Problem

Needs

• Additional high-speed run

• 260 rpm

• ~800V

• ~1300A

• 25 sec of additional energy

Spec Metric Target UnitsVoltage Sag Correction 10 VoltsCurrent Operating Current 1300 AmpsTime Operating Time 25 SecondsPower Operating Power 13 kWEnergy Supplied Energy 325 kJDevice Response Time to Correction TBD SecondsSize Solution Size Diameter 25 inchesAcoustics Sound Intensity Classified dBMaintainance Ease of use Minimal -Hardware Int. # of Connections TBD -Control Int. Feedback control TBD -Recharching Int. w/ charging TBD -

Deliverables

Documents

• Problem Description and Requirements

• Potential Design Solutions

• Recommended System Selection

• Final Configuration Report

Models

• Laboratory model of scaled system

Project Learning

• PM Motors

• Power Electronics

• Ultracapacitors

• Transient Simulation

Parallel DC Solution

Energy Source

Motor Drive Cabinets

Series DC Solution

Capacitor Solution

Ultracapacitor Bank

Power Electronics

To System

Pros

•Quick Device Response

•Low Development Cost

•Long Life

Cons

•Component Cost

•Size

•Charging

Auxiliary System

Power Electronics

Auxiliary Battery

To System

Pros

•Use exiting equipment

•Small size

•Component Cost

Cons

•Development Cost

•Available Energy

Design Solution SizeAcoustical

NoiseElectrical

NoiseComponent

CostComplexity

Device Response

Developmental Cost

Reliability MaintainabilityPower

IntegrationControl

IntegrationTOTAL SCORE

Parallel Capacitors 5 9 8 5 4 9 7 6 9 5 5 72

Parallel Capacitors w/ DC Converter

3 8 6 4 4 9 7 7 9 7 7 71

Parallel Auxilary w/ DC Converter

9 8 6 5 7 8 6 8 7 9 7 80

Series Capacitors w/ DC Converter

7 8 8 5 4 9 7 6 9 5 7 75

Series Auxilary w/ DC Converter

9 8 4 4 7 8 6 8 7 9 7 77

Series Flywheel 5 5 9 5 5 6 5 4 5 5 5 59

AC Power Electronics 3 8 3 3 2 8 4 8 5 3 2 49

Grading Scale 1 Worst 10 Best

Design Matrix

Begin Project Definition (Phase 1): September 8, 2006

Client Interview: September 18, 2006

Bayview Visitation: October 3, 2006

Project Needs/Specifications: October 16, 2006

Begin Conceptual Design (Phase 2): October 16, 2006

Individual Learning Presentations: October 23, 2006

Math Model Prototype #1: October 23, 2006

Preliminary Design Review: November 3, 2006

Math Model Prototype #2: November 6, 2006

Evaluate and Select Among Alternatives: November 10, 2006

Begin System Integration (Phase 3): November 13, 2006

Interim Design Report Review: November 17, 2006

Rough Draft Laboratory Model: November 17, 2006

Refined Laboratory Model: November 29, 2006

Snapshot Day: December 1, 2006

Finalize Proposal/ Project Plan: December 8, 2006

Schedule

Series Transient Model

Series Transient Block Model

Speed and Power Profiles

Cabinet and Supplemental Voltages

Questions?