Abstract
The multivariable self-tuning controllers of Chien et al. incorporate a Smith predictor-type of time delay compensation (STC-TDC). These are applied to dual composition control of a pilot-scale multicomponent distillation process. Both versions of the STC-TDC, i.e., with and without decoupling, are compared with a standard dual-loop PI controller and are seen to provide excellent control in the face of significant process interactions and nonlinearities.
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