Is the simulink really useful for the real system?

Recently,I want to use the PID to control the mechanical arm to stabilizer at an arbitrary angle. I used the simulink to do the simulation.

We have done tried many times. But I cannot success. Is there anyone could tell me that the simulink is really useful, or it is only the fantacy of the theorists？

Answer 1

[Walter Roberson]

https://www.mathworks.com/company/newsletters/search.html?q=&fq=product:SL&page=1

[Lilian]

So, your answer is that I should make a more more more more (no end...)accurate model.

[Lilian]

I'm so sorry that I'm so impolite. But I'm really anooyed that chaque fois the result of the simulation is good. But.....

[Walter Roberson]

My answer is that many people use Simulink in for practical purposes, including creating production systems and generating FPGAs for embedded components.

Watch this video https://www.youtube.com/watch?v=cyN-CRNrb3E and then read the paper. Notice they use MATLAB.

http://www.acin.tuwien.ac.at/fileadmin/cds/pre_post_print/glueck2013.pdf

[Lilian]

Firstly, Merry Chritmas. Secondly,I'm sorry that I donot reply you timely. And yesterday, We have found that the simulink can help us to adjust the PID, but its role is not. Combined with your answer, I concluded that the simulink can help us to do experiment and this can help us to ameliorate the controler more quickly.

Answer 2

[John D'Errico]

That you tried and failed, does not mean it is impossible. Odds are, it is simply a reflection that there are things you need to learn.

Yes, some things are mathematically impossible. But in a modeling context, that is rarely the case. Instead, a model is an approximation of reality. A better model will be a better approximation.

Should a carpenter blame his tools if the structure he has built proves to be inadequate? I'd suggest not, but look to improve his own skills.

[Lilian]

Thank you for your criticism

Answer 3

[Arkadiy Turevskiy]

Hi,

Your question and your comments are not very clear. What is it that you are failing to do? Are you unable to control your device in simulation, or are you unable to control the actual hardware in real-time? Simulink can definitely help with both, but it is not a magic wand, it is a tool that requires engineer using it to apply their knowledge and engineering judgment.

I recommend contacting MathWorks technical support. They can dig deeper into your situation and point you in the right direction. HTH

[Lilian]

I'm sorry that my question is not clear. I’ll try to improve this ability. And I knew my problem. Thanks for your suggestion.