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Start by
Santiago Alvarez Alvarez
09-13-2013 10:30 PM

Looking for the best control method to drive this motor

Hi everybody! I trying to design a motor controller for a Motenergy motor with the following characteristics:

PMAC motor, with sinusoidal back-EMF.
- 24V - 102V DC applications allowed with BLDC motor controller.
- Rated Continuous Current 140A.
- Peak current 400A.
- Speed: 0 - 5000rpm
- Sin/cos speed enconder

Application would be an electric motorcycle.

I'm trying to decide which method is better to drive this motor:
I've discarded trapezoidal control because of the ripple that affects motor torque (smooth movement desired). Now, i'm not sure if sinusoidal control is good enough or I should think about FOC control. I know that sinusoidal control has some problems with high rotation speeds, but, what is considered a high rotation speed?

I would be very grateful if someone can throw some light on this.