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comtroller for axial flux motor

Robert Harris2
Prodigy 10 points
Other Parts Discussed in Thread: DRV8301, DRV8301-69M-KIT

I am needing to control a axial flux motor for a E-bike. 2,000 rpm max with 48 volt dc @ 10 to 12 kw. I am trying to set it up as a attraction/repulsion. I am wanting a 3 phase controller with each phase to pulse width modulate (PWM) for power control and quickly invert when coil centers on magnet (switch to repulse). I am sure there are a few nano seconds not to crash the FET's. This is not rotating the field around the stator but stepping around. I am using the 3 phases in 3 offset coil sets to reduce the cogging.

I was looking at developers kits. I found:

DK-LM3S-DVR8312, DK-LM4F-DVR8312, TMDS1MTRPFCKIT, DVR8312-C2-KIT, DVR8301/2 base kit

Any of these? help me? or is ther another direction I should go? any help APPRECIATED!

 

  • 0
    TI__Guru** 118350 points

    None of our hardware is capable of the 200A+ that it seems you are requesting (10KW at 48V), you will have to customize yourself. The closest is the DRV8301 based kit, which can do 48V up to 80A.  I know of a customer who has used this base design and has // the FET legs to drive over 200A continuous from his own hardware.

    I believe axial flux PM can be controlled just like a radial flux PM. In that case I highly recommend DRV8301-69M-KIT and InstaSPIN-FOC.

    If you are going to write your own control algorithms this is still the platform I recommend.