Tuning of PID controller gains using Signal Constraint in MATLAB/SIMULINK

Tuning of PID controller gains using Signal Constraint
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Now I am going to teach you how to tune gains of the PID controller or Multiple controllers i.e, proportional gain Kp, integral gain Ki and Derivative gain Kd. Using 'signal constraint block' in Matlab simulink. Or even simple gain or multiple gains in matlab simulink.

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Step 1:
Take any model and connect or build in MATLAB simulink with the help of your required blocks as per the problem.
For example

Step 2: Connect the PID controller or controllers in the model from simulink extras, additional linear block.

then give the names for gains as Kp, Ki and Kd or as you wish or define different names as Kp1 Ki1 Kd1 etc.,

Step 3:
Go to Simulink Response Optimization and take the block signal constraint and connect to the place where you want to optimize your response. if you have more than one response, take multiple signal constraint blocks but define controller gains with different names.

Step 4:
Initialize the gains if you know already or give all values to zero and give range if you know. otherwise it will take -inf to +inf, generally pid controllers gains to be taken from zero.

Step 5: go optimization in signal constraint block and click on tuned parameters and add the gains from workspace which are already defined in the command window or from any file.

Step 6: adjust the exis as per your requirement as explained also reference line... then simulate. you will get the required gains.


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Tuning of pid controller
Optimization of controllers gains in MATLAB simulink