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KZhan.6
KZhan.6
Visitor II
December 7, 2020
Question

Preferred motor control method

  • December 7, 2020
  • 1 reply
  • 960 views

Hi everyone,

I have a hobbyist drone motor with the following phase voltage plot. Can anyone recommend the preferred method of controlling this motor? Is (sensored) trapezoidal or sinusoidal control sufficient? Or do we have to use FOC control?

Thank you very much!

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1 reply

Mathieu Casties
Mathieu Casties
Visitor II
December 8, 2020

Hello KZhan.6,

for your drone motor control application, you don't need sensors because sensor-less solutions works well at high speed. You can use both FOC or 6step algorithm.

You can find some examples in the MC SDK and try different configurations.

Best regard

baruch
baruch
Associate II
December 8, 2020

Using drone motor doesn't necessarily mean drone like operation when synchronous speed control is a key. If load is changing fast, often, within a wide range with existence of stall option(i.e. low and very low speed) I'm not sure that sensorless will always suitable.

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