How can I get "simple PID closed-loop controller" code for Matlab function for applying in simulink ?

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Rawaz Aziz
Rawaz Aziz 2021-11-19
回答： Sam Chak 2023-9-9
I want to build a modified PID closed loop controller, so I need a simple PID closed-loop code with only one feedback and one reference to applying in matlab function in simulink, I will aprriate your helps, Thanks ...

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Sam Chak
Sam Chak 2023-9-9
Ran in:
@Rawaz Aziz, From the description of the problem, it seemed that you want a modified closed-loop controller like this:
% pid controller
Gc = pid(1, 1, 1, 1)
Gc = 1 s Kp + Ki * --- + Kd * -------- s Tf*s+1 with Kp = 1, Ki = 1, Kd = 1, Tf = 1 Continuous-time PIDF controller in parallel form.
% modified pid closed-loop controller with 1 feedback
Gcl = feedback(Gc, 1)
Gcl = 2 s^2 + 2 s + 1 --------------- 3 s^2 + 3 s + 1 Continuous-time transfer function.
% response
step(Gcl, 20), grid on

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