I'm designing a 100kW 3-phase sensorless brushless motor controller for my school's SAE Formula Hybrid Vehicle.
For those who are not familiar for SAE Formula Hybrid, check out the website: http://www.formula-hybrid.org/
The vehicle we took to competition this past year, and the year before that did okay, but it was certainly lacking in the power department. So, being the horsepower addict that I am, I decided that for our next vehicle we need to have a more powerful motor. Something like this: http://www.enstroj.si/Electric-products/emrax-268.html
That motor can provide more than enough power for smokey burnouts all day long, but it can't do it without a proper motor controller. Unfortunately any controller that could drive this motor to it's full potential is well in excess of $5000. So I've decided to build my own starting this summer and finish it up before the beginning of my senior year as an Electrical Engineering student.