How to design a PID for the system

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SARAVANA
SARAVANA il 18 Feb 2011
6629e-015 s^3 + 17.4949 s^2 + 9.2371e-014 s - 883.0695
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s^4 + 0.58328 s^3 - 83.9278 s^2 - 29.4415 s
how to design the PID for the above system plzz help me
  3 Commenti
Paulo Silva
Paulo Silva il 18 Feb 2011
http://www.engin.umich.edu/class/ctms/pid/pid.htm
Paulo Silva
Paulo Silva il 18 Feb 2011
You have several ways to do it in matlab and simulink, most of them can do all the calculations for you, the best one is the pidtool but I think that it's only present in matlab 2010

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Risposte (1)

Rong
Rong il 18 Feb 2011
For this particular plant with one unstable pole, an integrator and a non-minimum phase zero, no PID can stabilze it. Try a high-order controller and design it with "sisotool".
"sisotool" is an interactive control design environment that provides a suite of GUI based tools such as Bode plot and Nichols chart as well as automated tuning abilities for PID, IMC, LQG controllers.

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