Compact DC/AC Power Inverter Design Proposal Philip Beard Jacob - - PowerPoint PPT Presentation

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Compact DC/AC Power Inverter Design Proposal Philip Beard Jacob - - PowerPoint PPT Presentation

Sep 12, 2023 15 likes •226 views

Compact DC/AC Power Inverter Design Proposal Philip Beard Jacob Brettrager Jack Grundemann Stanley Karas Travis Meade Team Seven - Compact DC/AC Power Inverter 10-13-14 Outline Industry & the Little Box Challenge Power

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SLIDE 1

Design Proposal

Philip Beard Jacob Brettrager Jack Grundemann Stanley Karas Travis Meade

Compact DC/AC Power Inverter

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 2

Outline

  • Industry & the Little Box Challenge
  • Power Inverters
  • Build Specifications
  • FAST Diagram
  • Design: Phases, Specifics, Proposed, Issues
  • Budget
  • Summary
  • Timeline
  • Questions

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 3

Industry

  • What’s an inverter?
  • Problems

○ Size, Efficiency, Power Density

  • Industry Drivers

○ Above Problems ○ Renewable Microgrids

Team Seven - Compact DC/AC Power Inverter • 10-13-14

www.competititivecyclist.com

en.wikipedia.com

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SLIDE 4

Power Inverter Basics

  • Direct Current to Alternating Current
  • Input/output transformers
  • EMC filtering

Team Seven - Compact DC/AC Power Inverter • 10-13-14

https://www.ipqdf.com/wp-content/uploads/2014/02/1voltage-waveform-power-supply.gif http://www.aselabs. com/images/userstuff/uploadedimages/2003/07/30/514.png

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SLIDE 5

Google/IEEE Little Box Challenge

Parameter Requirement (Nominal) Maximum Load 2 kVA Power Density > 50 W/in3 Volume < 40 in3 Voltage Input 450 V DC Voltage Output 240 V RMS AC Frequency Output 60 Hz Maximum Outer Temperature < 60 °C Electromagnetic Compliance FCC Part 15 B

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 6

Our Inverter

Parameter Requirement (Nominal) Maximum Load 1 kVA Power Density > 25 W/in3 Volume < 40 in3 Voltage Input 200 V DC Voltage Output 120 V RMS AC Frequency Output 60 Hz Maximum Outer Temperature < 60 °C Electromagnetic Compliance FCC Part 15 B

Team 7 Build Specifications

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 7

FAST Diagram

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 8

Design Phases

  • Phase 1: PSpice Modeling and Car Inverter Research

○ Gather proposed solutions and test feasibility

  • Phase 2: Silicon Prototype

○ Build, test, and discover heat limits

  • Phase 3: Silicon Carbide Prototype

○ Build, test, and (carefully) discover heat limits

  • Phase 4: Final Design and Build

○ Test thoroughly and perfect heat sink

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 9
  • H-bridge Using IGBTs

○ 200 V DC Rail ○ Controlled by gate driver

Design Specifics

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 10

Proposed Design

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 11

DC-DC Converter

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 12

Micro-Controller

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 13

Gate Drivers

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 14

H-Bridge

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 15

LCR Filter

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 16

Preliminary PSpice

Team Seven - Compact DC/AC Power Inverter • 10-13-14

PSpice prior to proper output filter alignment (currently in progress)

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SLIDE 17

Issues & Risk

  • Risks

○ High DC ○ Heat

  • Issues

○ Heat sinks ○ Enclosure Design

Team Seven - Compact DC/AC Power Inverter • 10-13-14 www.ecnmag.com

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SLIDE 18

Budget Item Price Quantity Total Description

C2M0025120D $91.61 4 $366.44 Silicon Carbide IGBTs UCC27211A $5.50 2 $11.00 120 Volt Gate Driver DC-DC Converters $32.15 3 $96.45 Supply Rail for Micro Controller Heat Sink $5.00 1 $5.00 Aluminum Milled Heat Sink Enclosure $8.00 1 $8.00 High Temp Enclosure Arduino Microcontroller $4.95 1 $4.95 ATMega328 PCB $7.00 1 $7.00 Printed Circuit Board

TOTAL: $498.84 Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 19

Summary / Moving Forward

  • Main Challenge: Size

○ Component Efficiency ○ Heat Sinks

  • Arduino Programing
  • Build and Test

○ Silicon ○ Silicon Carbide

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 20

Timeline

Team Seven - Compact DC/AC Power Inverter • 10-13-14

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SLIDE 21

Thank You

Questions?

Team Seven - Compact DC/AC Power Inverter • 10-13-14