DRV8305: sampling frequency for FOC control of PMSM

Mohammad Karamali

Part Number: DRV8305

Hello,

I am using sensored FOC method for controlling PMSM motor. the PWM frequency is 20 kHZ. what is the best sampling frequency for current and speed loops.

Regards,
Mohammad.

over 6 years ago

0 Yanming Luo over 6 years ago

TI__Guru** 115470 points

That depends on the response performance requirement of your system. In most case, you might implement currrent control every PWM frequency, and one-tenth or one-fifteenth of PWM frequency for speed loop.

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DRV8305: sampling frequency for FOC control of PMSM