Improving Tracking Performance of Predictive Functional Control Using Disturbance Observer and Its Application to Table Drive Systems
Keywords:
predictive functional control, disturbance observer, table drive system, model predictive controlAbstract
A practical approach for improving tracking performance of the predictive functional control (PFC) is proposed. The disturbance observer is utilized to nominalize the actual plant and to reduce the predicted output error in the PFC algorithm by canceling not only constant but also high-order disturbances. The proposed control scheme is experimentally validated on a single axis table drive system and is compared with the standard PFC and the industrial cascade control. The experimental results prove the effectiveness of the proposed disturbance observer-based PFC scheme.
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