KING FAHD UNIVERSITY CHEMICAL ENGINEERING COURSE NOTES (Process Control)-Pages from ch06

KING FAHD UNIVERSITY CHEMICAL ENGINEERING COURSE NOTES (Process Control)-Pages from ch06

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Unformatted text preview: 6.1 a) By using MATLAB, the poles and zeros are: Zeros: (-1 +1i) , (-1 -1i) Poles: -4.3446 (-1.0834 +0.5853i) (-1.0834 0.5853i) (+0.7557 +0.5830i) (+0.7557 -0.5830i) These results are shown in Fig E6.1 Figure S6.1. Poles and zeros of G(s) plotted in the complex s plane. b) c) Process output will be unbounded because some poles lie in the right half plane. By using Simulink-MATLAB 2 x 10 8 0 -2 -4 -6 Output -8 -10 -12 -14 -16 0 5 10 15 Time 20 25 30 Figure E6.1b. Response of the output of this process to a unit step input. As shown in Fig. S6.1b, the right half plane pole pair makes the process unstable. ...
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