Efficient Motor Control and Power Conversion System
This critical design review on February 24, 2009, by Nicholas Barr, Daniel Fargano, Kyle Simmons, and Marshall Worth focuses on the purpose and specifications of a motor power system and controller for IEEE Future Energy Challenge ‘09. The system requires a cold torque of 30 N-m, 3000 RPM in 3-5 seconds, and 1 KW power with a NEMA Frame 56 motor. The control system employs innovative algorithms like Vector, Clark, and Park transforms, as well as PWM using CrossWorks code. The power system features a cascaded B/B inverter with high-frequency operation and low power losses, utilizing advanced components like MOSFETs and IGBTs for efficient performance. The driver configuration includes a bi-directional buck-boost DC-DC circuit, complemented by simulated 3-phase waveforms and sensors. This project also outlines division of labor, project milestones, and opportunities for further discussion.
Efficient Motor Control and Power Conversion System
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Presentation Transcript
Team MotorBoard Efficient Motor Control and Power Conversion System Critical Design Review 24 February 2009 Nicholas Barr, Daniel Fargano, Kyle Simmons, Marshall Worth
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
CrossWorks Code written for Development board using CrossWorks
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
