A feedforward/feedback adaptive controller for commercial cross-flow grain driers
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An adaptive controller, based on a continuously updated linear control, was developed for continuous-flow grain drier control. The system consists of a linear model, a control algorithm, an on-line moisture meter, a tachometer and a microcomputer. The control system was tested during two drying seasons on two commercial cross-flow maize driers. The average outlet moisture content was controlled to within 0.3% of the set-point during two drying seasons. 1990 The British Society for Research in Agricultural Engineering.