Efficient motor control and power conversion system
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Team MotorBoard. Efficient Motor Control and Power Conversion System. Critical Design Review 24 February 2009 Nicholas Barr, Daniel Fargano, Kyle Simmons, Marshall Worth. Overview. Purpose and Specifications. Provide a general purpose motor power system and controller

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Efficient Motor Control and Power Conversion System

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Team MotorBoard

Efficient Motor Control and Power Conversion System

Critical Design Review

24 February 2009

Nicholas Barr, Daniel Fargano, Kyle Simmons, Marshall Worth


Overview


Purpose and Specifications

  • Provide a general purpose motor power system and controller

  • More specifically will be used in the IEEE Future Energy Challenge ‘09

    • 30 N-m Cold Torque

    • 3000 Rpm 3-5 seconds

    • 1 KW Power

    • NEMA Frame 56


Motor Requirements


Torque Characteristics


System Description


System Diagram


Control System


Control Algorithm


Vector Controller


Clark Transform


Park Transform


PWM


CrossWorks

Code written for Development board using CrossWorks


Power System


Power System - Overview


Power System – Cascaded B/B


Power System - 3φ Inverter


Power System – Switches

  • Power MOSFET

    • high-frequency operation

    • low-voltage drop (low power losses)

    • saturation temperature sensitivity

  • IGBT

    • low drive current

    • fast switching time

    • higher voltage drop (higher conduction losses)

  • IGBT w/Diode Co-pack

  • Voltage - Collector Emitter Breakdown (Max):600V

  • Current - Collector (Ic) (Max):85A


Power System – Driver

  • Configuration:High and Low Side, Independent

  • Bootstrap circuit designed to prevent gate voltage from dropping below minimum gate threshold voltage


Power System – Driver


DC-DC Bi-Directional Buck-Boost


Simulated 3 Phase Waveforms


Simulated 3 Phase Waveforms


Sensors


Parts List – Mass Production


Division Of Labor


Project Milestones


Questions?


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