The generalized control problem

5 Controllers for closed-loop systems 4.5.1 The generalized control problem 

In practice, there will always be transient errors, but the transient period should be kept as small as possible. It is usually possible to design the controller so that steady-state errors are minimized, or ideally, eliminated. 

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Dual fuel firing was cited in Chapter 6 as an example of bias feedforward control. Here we will expand on this technique. The general control problem is illustrated in Figure 10.8. 

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