PID tuning in Simulink Matlab , Some explanation in simple terms required

Question

What happens behind the scene when the PID block in the Matlab Simulink is tuning and linearising the plant, designing the controller and so on ?

score 0 · Accepted Answer · answered Oct 22 '13 at 08:03

It linearizes the model around an operating point (either default, or one you specified), and then uses a proprietary algorithm for tuning the PID gains. See http://www.mathworks.co.uk/help/slcontrol/ug/introduction-to-automatic-pid-tuning.html for more details.

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