How to design a PID for the system
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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
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Paulo Silva
2011-2-18
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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Rong
2011-2-18
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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