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TMS320F28027F: INSTASpin FOC

Yuto Kitamura
Expert 7245 points

Part Number: TMS320F28027F
Other Parts Discussed in Thread: DRV8316, MCF8329A, MOTORWARE

Tool/software:

Dear team,

My customer is interested in INSTASpin sensorless FOC of F28027F.

I referred below thread and learned we cannot use any GUI to evaluate F2802x for InstaSPIN. Is is not changed still?
https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1075983/tms320f280025c-how-to-use-instaspin-universal-gui-with-tmdscncd280025c

Also can I know the maximum value of electrical frequency that F28027F can support? I tried GUI and I could input any speedRef value in the box.
You can assume the condition with 24Vin, 1kW motor load, DRV8316. 

Why I am asking this is they are comparing MCF8329A and it can support GUI based development and up to around 3kHz electrical speed. (in practical around 1.5kHz)

Best regards,
Yuto Kitamura

  • 0
    TI__Guru** 116860 points
    Yuto Kitamura said:
    I referred below thread and learned we cannot use any GUI to evaluate F2802x for InstaSPIN. Is is not changed still?

    Yes. You can use this GUI or use CCS directly to spin a motor. Please take a look at the lab user's guide in motorWare that has a detailed operation instruction.

    Yuto Kitamura said:
    Also can I know the maximum value of electrical frequency that F28027F can support? I tried GUI and I could input any speedRef value in the box.
    You can assume the condition with 24Vin, 1kW motor load, DRV8316.

    That is related to the motor and the adding load on the motor, not only the MCU controller and control algorithm.

  • 0 in reply to Yanming Luo
    TI__Expert 7245 points

    Hi Yanming,

    Yanming Luo said:
    That is related to the motor and the adding load on the motor, not only the MCU controller and control algorithm.

    >> Yes, that is why I proposed you can estimate 1kW motor load and understand there is mathematics equation between electrical power(W) and torque[Nm] and rotation speed[rpm].

    Even it is free wheel (no load), the algorithm should have control speed limitation. Can you let me know the reference value to understand how much TI InstaSPIN has capability to control motor and decide the solution. I believe InstaSPIN must have higher capability vs. MCF8329A.

    Best regards,
    Yuto Kitamura

  • 0 in reply to Yuto Kitamura
    TI__Guru** 116860 points
    Yuto Kitamura said:
    >> Yes, that is why I proposed you can estimate 1kW motor load and understand there is mathematics equation between electrical power(W) and torque[Nm] and rotation speed[rpm].

    It's difficult to estimate the maximum running speed that needs very exact motor parameters, the adding load, and the dc bus voltage.

    Yuto Kitamura said:
    Can you let me know the reference value to understand how much TI InstaSPIN has capability to control motor and decide the solutio

    Yes, the instaSPIN-FOC can run the motor to its maximum frequency as the other controllers or algorithms, there is no any limitation on algorithm side.