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Process Control: Modeling, Design, and Simulation by B. Wayne Bequette

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Additional Exercises

1:Compare step responses of the transfer function and state space models for the van de Vusse reactor.
  1. Transfer function: Perform the open-loop simulation for a step input change from 0 to 1 at t = 1, as shown in Figure M2-5.

  2. State space: Replace the transfer function block shown in Figure M2-5 with a state space block. Enter the following matrices in the MATLAB command window:

Show that the resulting step responses of the transfer function and state space models are identical.

2:Consider the closed-loop SIMULINK diagram for the van de Vusse reactor (Figure M2-8). Replace the default PID controller with a “Real PID” controller, ...

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