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Why won't field-oriented controlled PMSM motor spin in Simulink?

Discussion in 'Sensors and Actuators' started by Schenk123, Apr 25, 2020.

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  1. Schenk123


    Apr 25, 2020
    Good afternoon,

    I have developed a Field-Oriented Control for a PMSM motor in Simulink using Simscape Electrical but my motor is not spinning. I have tried applying various speed values but nothing happens. I am applying a step signal from 0 to 300 but the motor speed still doesn't move. My error signal, however, tracks my input as it should. I do not know what has happened. Could someone look at my simulation and tell me what is going on ? Screenshots of my signals are attached and simulink file can be downloaded from my OneDrive: FOC_SIMSCAPE.slx

    Last edited: Apr 25, 2020
  2. Nanren888


    Nov 8, 2015
    I don't have simscape electrical, so can't try it. Nor have I doe anything much with rotating machinery, so unfamiliar with your blocks.
    I think I get the Clarke and Park stuff from the descriptions on Mathworks
    Sorry not familiar with/don't know what PWMTest does.
    I see a speed error.
    What's "theta"?
    What rotates? That is what turns speed into an increasing angle?
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