FOC is unstable with large Outrunner and had a hardware failure.
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I have a new 100/250 driving a FreeRCHobby 120-100 (12kW rated) which is driving a Rotrex supercharger. I need about 9kW at 6krpm (14 poles) which is about 65V and 150amps with this motor. I ran the FOC setup for a large outrunner. It worked fine with the motor unloaded, but when I hooked up the supercharger, it tripped out at around 4000 RPM due to an absolute over current error. I lowered the absolute current to 250 amps while I debugged the problem. FOC Setup had it at around 420. It turns out the PID loop appears to goes unstable over 4000 rpm, with the mot
