What is the tuning method used in PID tuner apps (SIMULINK)?

Hi,

I am using PID tuner app in simulink to tune my PID gain. But, I am not sure what is the method that been employed by this app to calculate PID gain (for example, Ziegler Nicholas method, Skogestad's, etc)? I need to know, since I want to justify it in my thesis.

Thank you.

[Aila Manarang]

Hello. May I ask if you found the answer to your question? We also need to justify it in our thesis. Thanks

Answer 1

[Arkadiy Turevskiy]

PID Tuner app uses proprietary tuning algorithm developed by MathWorks. More details in the doc .

[mekki nesrine]

Hello Mr. Arkadiy, Could you please tell us on what principle the tuning algorithm is based on? In fact, i must clarify in my thesis report the reason behind choosing your method. Thank you in advance

[Sarkar Jawhar]

Hello Mr Turevskiy,

The doc link is not available, coud you please clarify on what principle the tuning algorithm is based on? Regards

[Sam Chak]

Hi @Sarkar Jawhar

You can find information about the tuning algorithm at this link:

https://www.mathworks.com/help/control/getstart/pid-tuning-algorithm.html

Using the pidtune() command, you can specify the DesignFocus option to favor the reference tracking, or the disturbance rejection.

https://www.mathworks.com/help/control/ref/pidtuneoptions.html

Here is a PID tuning example:

https://www.mathworks.com/help/control/getstart/tune-pid-controller-to-favor-reference-tracking-or-disturbance-rejection.html

Answer 2

[jia wan]

I find that the parameters 'Response Time' and 'Trasient Behavior' are the rise time and damping ratio of second order system. Based on the second order system, the phase margin and crossover frequency can be calculated. Then the PI controller is easily calculated.