Consider the PID controller of Example 12.3 for Tc=8. (a)
Chapter 12, Problem 12.9(choose chapter or problem)
Consider the PID controller of Example 12.3 for Tc=8. (a) Suppose that the PID controller is implemented as the series form in Table 12.2, rather than as the parallel form that was employed in Fig. 12.7. Are the simulated closed-loop responses significantly different from the ones in Fig. 12.7? (b) Suppose that 'TD is varied, whereas Kc and 'TJ are kept constant at the design values. For what values of 'TD is the closed-loop system stable? Does the closed-loop system become more or less oscillatory as 'TD increases?
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