Electric Motor Control with Regenerative Braking

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Electric Motor Control with Regenerative Braking

• Cody Doremus Keegan Roach
• Advisor Mr. Gutschlag
• Bradley Electrical Engineering Senior Design
  Project

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Regenerative Breaking - Overview

• Regenerative braking is used to improve the
  efficiency (fuel economy) of
• Electric Vehicles
• Hybrid Vehicles
• Industrial Applications
• Lowers operation costs

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Regenerative Breaking - Overview
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Project Goals

• Design and implement a test bench to determine
  the efficiency of regenerative braking
• Develop and verify a model for regenerative
  braking

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Background Information

• Spin off of a current Bradley Mechanical
  Engineering electric vehicle project
• Scope changes
• Full scale regenerative braking prototype
• 3 phase servo motor
• Regenerative braking test bench
• DC brushed motor

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Research

• Motors
• Drives
• Energy Storage
• Power Conversion
• Existing Products

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Regenerative Braking Test Bench
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Simulink Model of Test Bench
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Simulink Model Drive
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Simulink Model Regeneration
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Armature Voltage Comparison
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Regenerative Resistor Current Comparison
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Energy Used by the System
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Influence of Resistance
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Influence of Viscous Friction
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Battery Voltage vs Generator Voltage
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Switching Voltage Regulator
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Voltage and Regulated Current
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Simulink Model of Switching Voltage Regulator
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Inductor Problem
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Tasks for Future Project

• Replace the resistor with a battery and switching
  voltage regulator
• Model the switching voltage regulator in Simulink
• Develop electronics to use regeneration on an AC
  Servo Motor

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Questions

• ?