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Multi-input single-output control for extending the operating range: Generalized split range control using the baton strategy
Journal of Process Control ( IF 3.316 ) Pub Date : 2020-05-21 , DOI: 10.1016/j.jprocont.2020.05.001
Adriana Reyes-Lúa; Sigurd Skogestad

Split range control is used to extend the steady-state operating range for a single output (controlled variable) by using multiple inputs (manipulated variables). The standard implementation of split range control uses a single controller with a split range block, but this approach has limitations when it comes to tuning. In this paper, we introduce a generalized split range control structure that overcomes these limitations by using multiple independent controllers with the same setpoint. Undesired switching between the controllers is avoided by using a baton strategy where only one controller is active at a time. As an alternative solution we consider model predictive control (MPC), but it requires a detailed dynamic model and does not allow for using only one input at a time.
更新日期:2020-05-21

 

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