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tms320f28027f: motorware

Kamal Mokhtar
Intellectual 420 points
Part Number: TMS320F28027F


Hello,

I am using PMSM direct drive. I have some problems previously with driving the motor. after adjusting the motor parameters and the PI values, there is improvements. but the motor is not running perfectly. the problem there is a lot of noise once the the PWM signal is applied. I am using lab4 torque mode. the graph below shows 0 to 5v torque value and till 40amps motor peaks. the really strange thing for me is the negative currents that feels as a hick up when riding the bike and the high noise when the motor PWM is applied.

  • 0
    TI__Guru** 116140 points
    As discussed in your other post. 1. Make sure the current and voltage sampling are good enough which is very important to improve the performance. 2. Set USER_VOLTAGE_FILTER_POLE_Hz in user.h based on your hardware. 3. Set a constant torque current reference to run with load to see whether has the noise again, if yes, back item 1, check the current/voltage sampling. If no, adjust torque current PI parameters.