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Nonlinear pbkp_redictive control applied to steam/water loop in large scale ships

Abstract:

In steam/water loop for large scale ships, there are mainly five sub-loops posing different dynamics in the complete process. When optimization is involved, it is necessary to select different pbkp_rediction horizons for each loop. In this work, the effect of pbkp_rediction horizon for Multiple-Input Multiple-Output (MIMO) system is studied. Firstly, Nonlinear Extended Pbkp_rediction Self-Adaptive Controller (NEPSAC) is designed for the steam/water loop system. Secondly, different pbkp_rediction horizons are simulated within the NEPSAC algorithm. Based on simulation results, we conclude that specific tuning of pbkp_rediction horizons based on loop's dynamic outperforms the case when a trade-off is made and a single valued pbkp_rediction horizon is used for all the loops.