As I asked, I want to design a fractional pid controller for a model. Unfortunately, the results I got with step in matlab are quite different from those in simulink
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Here the orange line is the output and the blue line is the offset,Now let me show you the situation of matlab.The specific parameters of the controller are consistent with the code below
cs=fopid(9.503084707494814e+03,1.889631254823942e+02,2.304958553299564e+02,0.058440555124293,1.558103446462550);%This is parameter of controller
gs=tf(118700,[1 1085 1224000]);%This is the transfer function of the controlled object
step(feedback(cs*gs,1))%Step Response of Closed-loop Transfer Function

This is the general situation. I feel confused now.As I asked, I want to design a fractional pid controller for a model. Unfortunately, the results I got with step in matlab are quite different from those in simulink
.
Here the orange line is the output and the blue line is the offset,Now let me show you the situation of matlab.The specific parameters of the controller are consistent with the code below
cs=fopid(9.503084707494814e+03,1.889631254823942e+02,2.304958553299564e+02,0.058440555124293,1.558103446462550);%This is parameter of controller
gs=tf(118700,[1 1085 1224000]);%This is the transfer function of the controlled object
step(feedback(cs*gs,1))%Step Response of Closed-loop Transfer Function

This is the general situation. I feel confused now. As I asked, I want to design a fractional pid controller for a model. Unfortunately, the results I got with step in matlab are quite different from those in simulink
.
Here the orange line is the output and the blue line is the offset,Now let me show you the situation of matlab.The specific parameters of the controller are consistent with the code below
cs=fopid(9.503084707494814e+03,1.889631254823942e+02,2.304958553299564e+02,0.058440555124293,1.558103446462550);%This is parameter of controller
gs=tf(118700,[1 1085 1224000]);%This is the transfer function of the controlled object
step(feedback(cs*gs,1))%Step Response of Closed-loop Transfer Function

This is the general situation. I feel confused now. matlab, simulink MATLAB Answers — New Questions

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