Discrete-time implementation of Smith’s predictor on the state space
DOI:
https://doi.org/10.17979/ja-cea.2025.46.12140Keywords:
Systems with time-delays, Linear systems, Process control, Disturbance rejection, Regulation, Digital implementation, Predictive controlAbstract
In this paper it is considered how to apply the Smith’s predictor only with state variables, focusing on its discrete-time implementation in order to obtain the same behavior of the conventional predictor based on the external representation of the process. Its performance is analyzed through simulations on a single input-single output system with transport delay and proportional integral control against disturbances. In addition, it is compared with the alternative of directly modeling the time-delay with a chain of state variables.
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Copyright (c) 2025 Jorge Luis Martínez Rodríguez, Jesús Morales Rodríguez
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