Consider a third-order process with G m = G v = 2 and G p = G
Question:
Consider a third-order process with Gm = Gv = 2 and Gp = Gd = 2 / (s + 2)3.
(a) Find the roots of the characteristic equation for a proportional controller Gc = Kc for Kc = 1, 8, and 27. Classify each case as stable, unstable, or marginally stable. Derive a formula for the offset for a disturbance change as a function of Kc.
(b) Show that there is no offset for a PI controller using the Final Value Theorem for a disturbance change.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Process Dynamics and Control
ISBN: 978-1119385561
4th edition
Authors: Dale E. Seborg, Thomas F. Edgar, Duncan A. Mellichamp, Francis J. Doyle
Question Posted: