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TMS320F28027F: How to increase ACI output torque

Jordan Zhou
Genius 10470 points

Part Number: TMS320F28027F

Hi,

Customer is using F28027F for ACI motor, facing the torque issue.

Currently, it can achieve about 80% relative torque of the motor. How to achieve to 100%, even more for a short time?

Speed mode is used, lab5B.

Thanks a lot.

Br, Jordan

  • 0
    TI__Guru** 117160 points

    Set the right USER_MOTOR_RATED_FLUX according to the spec. of the motor, and then identify the motor again using the lab02b.  

    #define USER_MOTOR_RATED_FLUX (0.8165*200.0/60.0) // sqrt(2/3)* Rated V (line-line) / Rated Freq (Hz)

    And tune the magnetizing current (USER_MOTOR_MAGNETIZING_CURRENT) if the maximum output torque can't be achieved.