Design a time-delay compensator (Smith predictor) for where G v = G m = 1 and θ
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where Gv = Gm = 1 and θ = 1. Show closed-loop responses for unit step set-point and disturbance changes (Gd = Gp). Use an IMC PI controller with Ïc = 3 (Case A in Table 12.1).
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-Os G, %3D 5s + 1 Table 12.1 IMC Controller Settings for Parallel-Form PID Controller (Chien and Fruehauf, 1990) Case Model K̟K K TS +1 K T, + T, B T, + T2 (T,s + 1)(t,s + 1) K 257 25t T?g² + 2%ts + 1 25 K(-ßs +1) B > 0 7?s² + 25ts + 1° 25t D 25t 25 K 2 27. +t 27,t 2t, +t K 2t. + t s(ts + 1) Ke- G TS +1 T +0 Ke-s н Ts +1 Ө 2t +0 K(t,s + 1)e-s (T,s + 1)(t,s + 1) T, T; = (T, + T, – T3)T3 T, + Tz = T3 I, + T, = T3 T, + T, - T3 OIN
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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
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