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TMS320F28069M: IstaSPIN-FOC lab11 parameters

Pavlin Stoyanoff
Expert 1685 points
Part Number: TMS320F28069M
Other Parts Discussed in Thread: MOTORWARE

Greetings! As far as I understood Lab11a and Lab11b are templates for a final sensorless product. So I should prepare the motor and InstaSPIN-FOC parameters before I can turn the motor in this lab. I am using ACIM with 3 current and 3 voltage sensors + line voltage sensor.  So as far as I understood the procedure should be similar to this:

First: The motor parameters should be determined using Lab02a.

Second: Using Lab4 the IqRef_A should be determined. This value should be set for the next labs.

Third: With IqRef_A set from lab4  using Lab05a Kp_Idq and Ki_Idq should be determined

Fourth: with IqRef_A, Kp_Idq and Ki_Idq set using Lab05b Kp_spd and Ki_spd should be determined.

Fifth: All values should be set in Lab11a/b to spin the motor properly

Is this the correct course of action?

Thanks!

  • 0
    TI__Guru 53195 points

    Hello! We've assigned your post to our MotorWare expert. He should get back to you in the next day.

    Whitney

  • 0 in reply to Whitney Dewey
    Expert 1685 points

    So here is my problem! I ran lab4, lab05a and lab05b. My motor is running nicely in all of them. But when I loaded the values in Lab11 my motor is oscillating.

    pid[0].Kp, pid[0].Ki correcspond to Kp_spd and Ki_spd from lab5b

    pid[1].Kp, pid[1].Ki correcspond to Kp_Idq and Ki_Idq from lab5a

    pid[2].Kp, pid[2].Ki correcspond to Kp_Idq and Ki_Idq from lab5b/*the same as pid[1]*/

    I tried different values for Kp_spd. No success. I think the motor is overreacting.. I decreased pid[0].Kp from 0.5 to 0.1(according to lab05b explanation this should decrease the motor over reaction), but without any luck.

    The motor has internal break, but as I said it is working nice at labs 4,5a and 5b with these settings.

    Do I have to determine these values for lab11 again? Is there anything else I should setup or i have missed?

    Thanks!

     

  • 0 in reply to Pavlin Stoyanoff
    TI__Guru** 114520 points

    Try to use the lab11a and don't enable the Rs online in this lab.

  • 0 in reply to Yanming Luo
    Expert 1685 points

    Yes! It should be lab11a, because lab11 doesn`t support ACIM. So everything works fine in lab05b. Can you tell me what  the difference between the standart labs and lab11a/b  which do not include ctrl object is? Because I am planning to use lab05b as a template for my project. I will just include the options for Offset, Rs online recalibration and PowerWarp from lab11a/b. I think this should be possible. May be some parameter is causing the problem but I can`t find it..

    So if it is not a problem i would stick to labs with ctrl object...

  • 0 in reply to Pavlin Stoyanoff
    TI__Guru** 114520 points
    Pavlin Stoyanoff said:
    which do not include ctrl object is?

    Yes, the lab11a doesn't use the ctrl object and can't support motor identification. You may try to use the lab05b or lab10a if you want to run an ACIM directly. The lab11a is only tested for PMSM even though it can support ACIM.