Max speed with FOC on STM32F0 ?

[Jean Philippe EIMER]

Posted on March 05, 2018 at 16:58

Hi,

I'm evaluating the 3-shunt sensorless FOC (4.3.0) algorithm with STEVAL-IHM028V2 + STM32F072-EVAL.

To design my own board, I need to know the maximum - electrical - motor speed the STM32F0x at 48MHz can achieve ?

At which speed should I upgrade to F103 or higher ?

Thank you for your answer.

J. Ph.

#stm32f0 #motor-control #foc-sdk-4.3.0 #maximum-speed

[Jean Philippe EIMER]

Posted on March 13, 2018 at 11:01

I was expecting a theoretical answer, however I performed tests and here are my results.

Speed with STM32F072, at 48MHz, flux weakening activated.

The motor I used has 2 pair of poles.

* PWM at 8kHz, FOC at 8kHz : max motor speed 13000rpm (433 Hz electrical)

-> the limit here is the algorithm

* PWM at 10kHz, FOC at 10kHz : max motor speed 17000rpm (566 Hz)

-> the limit here is my motor

[Laurent Ca...]

The question has been moved from the "Motor Control Hardware" section to the "STM32 Motor Control" section (the question is about the STM32 MC SDK). 

Best regards