ST FOC Library v3.3: state observer + PLL coeff. calculation

[laurentlaurent9]

Posted on May 15, 2013 at 12:57

Hi,

I�m using the state observer + PLL algorithm and am trying to understand how the coefficients are calculated by ST MC Workbench v2.1. I couldn�t find everything I wanted in the docs, so could anyone give me the equations for the following parameters:

• F1 (scaling factor)
• G1. This seems to be proportional to K1, but I couldn't find the equation anywhere in the docs. I only found the equation for K1 in the ST FOC library user manual and it yields the same result as ST Motor Control workbench.
• F2 (scaling factor)
• G2. Similar to G1, it seems to be proportional to K2;only the equation for K2 can be found in the user manual.

Many thanks for that.

#lib-v3.3 #state-observer #pll

[Gigi]

Posted on August 27, 2013 at 18:20

This is a confidential information.

Ciao 

I suggest to register your request in the online support:

/cas/login?service=https://my.st.com/onlinesupport/app?page%3DonlineSupport

with this reference: Motor control application.

We will try to contact you via a local ST office for the support.

Ciao

Gigi

[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