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Electric Motor Control with Regenerative Braking

Electric Motor Control with Regenerative Braking. Cody Doremus & Keegan Roach Advisor: Mr. Gutschlag Bradley Electrical Engineering Senior Design Project. Regenerative Breaking - Overview. Regenerative braking is used to improve the efficiency (fuel economy) of: Electric Vehicles

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Electric Motor Control with Regenerative Braking

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  1. Electric Motor Control with Regenerative Braking Cody Doremus & Keegan Roach Advisor: Mr. Gutschlag Bradley Electrical Engineering Senior Design Project

  2. Regenerative Breaking - Overview • Regenerative braking is used to improve the efficiency (fuel economy) of: • Electric Vehicles • Hybrid Vehicles • Industrial Applications • Lowers operation costs

  3. Regenerative Breaking - Overview

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

  5. 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

  6. Research • Motors • Drives • Energy Storage • Power Conversion • Existing Products

  7. Regenerative Braking Test Bench

  8. Simulink Model of Test Bench

  9. Simulink Model – Drive

  10. Simulink Model – Regeneration

  11. Armature Voltage Comparison

  12. Regenerative Resistor Current Comparison

  13. Energy Used by the System

  14. Influence of Resistance

  15. Influence of Viscous Friction

  16. Battery Voltage vs Generator Voltage

  17. Switching Voltage Regulator

  18. Voltage and Regulated Current

  19. Simulink Model of Switching Voltage Regulator

  20. Inductor Problem

  21. 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

  22. Questions ?

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