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控制理论与应用 2001
Cascade Generalized Predictive Control Applied to Biaxial Film Production Process
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Abstract:
Biaxial film production is a complex industrial process with large time_delay, it includes two stretch processes: longitudinally and laterally, the disturbances often occur in the film_forming part. We propose in this paper a cascade generalized predictive control (CGPC) real_time algorithm developed for this control system. The use of CGPC algorithm instead of classical PI cascade controller is now very well applied to industrial practice due to the quick rejection of the effect of disturbances in the inner loop, the master loop takes into account more information about the future using GPC algorithm to give the setpoint of the inner loop.