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What is the RoverL recognition principle used in InstaSPIN?

Jack
Prodigy 70 points


Hi,everyone!

I am learning InstaSPIN，I want to know what is the RoverL recognition principle used in InstaSPIN? 

How to calculate  the value of high-frequency  inductance  Lhf and high-frequency resistors Rhf ?

what is the formula or the motor equations ?

Thank you !!!

  • 0
    TI__Guru** 119640 points
    Have you read SPRUHJ1 , specifically the chapter on motor identification?
  • 0
    Prodigy 70 points
    yes, I have read SPRUHJ1 ,but I can not find the identification principle of the RoverL , can you help me?
  • 0 in reply to ChrisClearman
    Prodigy 70 points
    yes, I have read SPRUHJ1 ,but I can not find the identification principle of the RoverL , can you help me?
  • 0 in reply to Jack
    TI__Guru** 119640 points
    It is very clearly discussed in section 6.5.3
    "This state of the estimator is used to measure the electrical time constant of the stator circuit by dividing
    the measured resistance and inductance. The RoverL time constant is used by the controller object in
    order to set the current controller gains, KP and KI of both IQ and ID current controllers. If the motor
    identification is bypassed, parameters provided in user.h are used to set the current controller gains.
    The process of measuring the RoverL time constant is done by injecting a current of fixed amplitude, at a
    fixed frequency to the stator windings. Each of the injected current parameters is described below:
    amplitude, frequency and measurement time."

    settings and waveforms follow