A process control system contains the following transfer functions: (a) Show how G O L (s) can be approximated by
(a) Show how GOL (s) can be approximated by a FOPTD model;
Find K,Ï, and Î¸ for the open-loop process transfer function.
(b) Use direct substitution and your FOPTD model to find the range of Kc values that will yield a stable closed-loop system. Check your value of Kcm for the full-order model using simulation.
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