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Motor controller for a motor with FOC control
Design a motor controller for a 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 encoder
Application would be an electric motorcycle.
Which method is better to drive this motor?
Trapezoidal control was discarded because of the ripple that affects motor torque (smooth movement desired). Now, is it sinusoidal control good enough or FOC control? Sinusoidal control has some problems with high rotation speeds, but, what is considered a high rotation speed?
High rotational speed is when the RL lag of the stator windings skews the current waveform too far from the ideal phasing.
FOC can get the best from your motor in terms of torque dynamics, smoothness and torque vs. speed curve. Moreover, implementing it can be a good "investment" for future applications.
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 encoder
Application would be an electric motorcycle.
Which method is better to drive this motor?
Trapezoidal control was discarded because of the ripple that affects motor torque (smooth movement desired). Now, is it sinusoidal control good enough or FOC control? Sinusoidal control has some problems with high rotation speeds, but, what is considered a high rotation speed?
High rotational speed is when the RL lag of the stator windings skews the current waveform too far from the ideal phasing.
FOC can get the best from your motor in terms of torque dynamics, smoothness and torque vs. speed curve. Moreover, implementing it can be a good "investment" for future applications.
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