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How to find steady-error value from the response graph? is there any command to find the steady state error from the response graph?
Latest activity Edited by Arkadiy Turevskiy
on 26 Nov 2014
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G(s)=5/s^2+2s+25
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1 Answer
- 1 question asked
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- 208 accepted answers
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Answer by Arkadiy Turevskiy
on 26 Nov 2014
- 1 question asked
- 549 answers
- 208 accepted answers
- reputation: 954
Edited by Arkadiy Turevskiy
on 26 Nov 2014
- 1 question asked
- 549 answers
- 208 accepted answers
- reputation: 954
Your question is not formulated clearly. Did you mean steady-state value, not "steady-error value"? Assuming that's what you meant, the next clarification is steady-state value of a transfer function in response to what - is it in response to a step input?
If that's what you meant, then yes, you can do this like that:
>> s=tf('s');
>> sys=5/(s^2+2*s+25);
>> [y,t]=step(sys);
>> y(length(y))
ans =
0.20
You can also right click on a step plot, "Charecteristics", "Steady-state", as shown below:
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