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

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Presentation transcript:

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 Hybrid Vehicles Industrial Applications Lowers operation costs

Regenerative Breaking - Overview

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

Background Information Spin off of a current Bradley Mechanical Engineering electric vehicle project Scope changes 1. Full scale regenerative braking prototype 3 phase servo motor 2. Regenerative braking test bench DC brushed motor

Research Motors Drives Energy Storage Power Conversion Existing Products

Regenerative Braking Test Bench

Simulink Model of Test Bench

Simulink Model – Drive

Simulink Model – Regeneration

Armature Voltage Comparison

Regenerative Resistor Current Comparison

Energy Used by the System

Influence of Resistance

Influence of Viscous Friction

Battery Voltage vs Generator Voltage

Switching Voltage Regulator

Voltage and Regulated Current

Simulink Model of Switching Voltage Regulator

Inductor Problem

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

Questions ?