7Advanced Control Algorithms

This chapter focuses largely on multi-input multi-output (MIMO) controllers. The same equations can be simplified where necessary for the SISO case.

7.1 Discrete z-Domain Minimal Prototype Controllers

This is a sampled data controller based on a model of the process. The design procedure seeks to achieve a stipulated sampled response to a stipulated disturbance to the system. This may not always be achievable, so an alternative desired response may have to be given. Figure 7.1 shows a typical installation in which the manipulated variable values are updated by comparison of feedback with setpoint only at fixed intervals T. The aim will be to achieve a particular form of measured output y in response to particular ...

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