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In: Electrical Engineering

I have a transfer function T(S)=.023/(.02913S^3+.1543s^2+.1205S). I need to design a PI, PD, or PID controller...

I have a transfer function T(S)=.023/(.02913S^3+.1543s^2+.1205S). I need to design a PI, PD, or PID controller to give this system a peak overshoot PO of 15% and a rising time Tr of 3 seconds. I have equations that relate the characteristic equation to the PO and Tr, but that only works for a second order equation.

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