Is ir possible to use more than one reference signals when using looptune in MATLABR2012a?

Question

Kah Wei 2014-12-25

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/168065-is-ir-possible-to-use-more-than-one-reference-signals-when-using-looptune-in-matlabr2012a

编辑： Kah Wei 2014-12-31

Hello everyone.I have a question here.

Currently I am trying to use sl.looptune to tune the parameters of my PID controller.The system that I am investigating is a 3 by 3 system as shown in the attached simulink model.

Tracking requirement is the objective that I wish to achieve by using sl.looptune. However I encounter an error that says:

"Zero or more than one input signals match the reference signal identifier "R1"."

Does that mean I only can use one reference signal for the system when applying tuning requirement in sl.looptune for my 3 by 3 system?

2 个评论
显示无隐藏无

Arkadiy Turevskiy 2014-12-29

Can you please attach your script and also indicate which release you are using (to do that type >>ver )

Kah Wei 2014-12-30

Hi Arkadiy.Thanks for taking time to answer.I already attached the script in this question as requested.

Ther version of MATLAB that I am using is MATLAB Version: 7.14.0.739 (R2012a)

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Arkadiy Turevskiy 2014-12-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/168065-is-ir-possible-to-use-more-than-one-reference-signals-when-using-looptune-in-matlabr2012a#answer_163691

编辑：Arkadiy Turevskiy 2014-12-30

spacecraft_nonlinear_linearcontroller_at.mdl

Ok, with the script provided, the problem is obvious. The script is referring to signals u1, u2,u3, and y1,y2,y3 in the model, but they are not defined there. All you need to do is name those signals in the model, as is done in the attached file.

Change your script to refer to this mdl file in lines 19 and 22.

I ran your script to line 49 and ran the model with the tuned gains to confirm a nice, stable design.

Arkadiy

P.S. If you have access to R2014a or R2014b, you can now do this workflow from a nice app (GUI) called Control System Tuner - makes it easier to setup the problem and not screw up the code.

Check it out here .