I performed dynamic testing on a 100 kW motor to analyze the effect of field weakening control on efficiency, torque-speed curve, and system delay.
In MIT's course 2.671, Measurement and Instrumentation, students design and execute an experiment for a system of their choice, and measure, analyze, and communicate the results. My system of choice was naturally the powertrain of the FSAE Racecar, which I had specced, designed, and tested last year.
For four settings of the maximum d-axis current (i_d_limit) on the motor controller, I measured the speed, phase current, and DC power during an acceleration and a coast-down step response. The findings are useful for developing high-level vehicle controllers as well as tuning the existing field weakening controller for optimal performance.
I wrote a professional-style paper, displayed my work at a poster session, and presented orally with a PowerPoint.
Final Paper (primary deliverable)
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