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Max speed of a PMSM motor before Flux Weakening

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Federico Manfrin
Federico Manfrin on 10 Nov 2020
Answered: Juan Sagarduy on 10 Nov 2020
When an inverter feeds a PMSM motor, transforming the DC-link voltage in AC voltage, many dubt rise up in my mind:
  • do I have enought voltage to increase the speed?
  • what is the voltage coming in the modulator input and what is the real voltage in the motor due the harmonic components?
Is there a good example of this question to study and get more Know how?
Thanks

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Answers (1)

Juan Sagarduy
Juan Sagarduy on 10 Nov 2020
Hi Federico
Try the following example https://se.mathworks.com/help/physmod/sps/ug/three-phase-pmsm-drive.html
Increase the target speed or load torque. Then, you shall see that the motor gets closer to its maximal capacity. If you request more power than admissible, you will likely end in the field weakening boundary.
Good luck / Juan

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