What is the code used by controller blocks?

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israa
israa on 15 Oct 2014
Commented: israa on 18 Oct 2014
Hi all
I want to use the Discrete PID Controller or Discrete PID Controller (2DOF) blocks in m-file.
If the two following pictures represent the formula of the two blocks respectively:
picture1
picture2
What is the code of them?

Answers (1)

Arkadiy Turevskiy
Arkadiy Turevskiy on 15 Oct 2014
You cannot use Simulink blocks in a MATLAB file. You can use the blocks to create a Simulink model. You can then simulate the model by pressing the "run" button or by using sim command.
If that is not what the question was about, you need to formulate the question more clearly.
HTH
  5 Comments
Arkadiy Turevskiy
Arkadiy Turevskiy on 17 Oct 2014
Edited: Arkadiy Turevskiy on 17 Oct 2014
We provide objects pid and pidstd for modeling PID controllers in MATLAB.
These objects are just like other LTI objects, such as transfer functions, and state space systems. You can uses them to create arbitrary feedback loops using commands such as connect and feedback, and then analyze resulting loops in time and frequency domains using commands such as step and bode .
If that is not what you need, you need to write your own MATLAB code to do what you want. You might want to search through MATLAB File Exchange to see if that has already been done by others.
israa
israa on 18 Oct 2014
Ok thanks,yeah i know about pid and pidstd but I can't use them because as I mentioned i'm using a matlab-based toolbox (i.e special s-functions) I will search more in matlab file exchange.
Best regards

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