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TMS320F28054M: How to prevent motor overheating from stuck on a certain position

Qiang Guo
Expert 1695 points
Part Number: TMS320F28054M


Hi TI and Adam,

  what are the parameters that i can use to keep tracking the current that apply to the motor?

  • 0
    TI__Guru** 115740 points
    What current do you want to track? You can use below codes to get the real Id, Iq and reference Iq which is apply to motor.

    // get Id and Iq vectors in amps
    gMotorVars.Id_A = _IQmpy(CTRL_getId_in_pu(handle), _IQ(USER_IQ_FULL_SCALE_CURRENT_A));
    gMotorVars.Iq_A = _IQmpy(CTRL_getIq_in_pu(handle), _IQ(USER_IQ_FULL_SCALE_CURRENT_A));

    // calculate vector Is in amps
    gMotorVars.Is_A = _IQsqrt(_IQmpy(gMotorVars.Id_A, gMotorVars.Id_A) + _IQmpy(gMotorVars.Iq_A, gMotorVars.Iq_A));

    // get the Iq reference from the position controller
    gMotorVars.IqRef_A = _IQmpy(STPOSCTL_getTorqueReference(stObj->posCtlHandle), _IQ(USER_IQ_FULL_SCALE_CURRENT_A));