Artificial-reference tracking MPC with probabilistically validated performance on industrial embedded systems
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| author | Gracia, Victor Krupa, Pablo Fele, Filiberto Alamo, Teodoro |
| author_facet | Gracia, Victor Krupa, Pablo Fele, Filiberto Alamo, Teodoro |
| contents | Industrial embedded systems are typically used to execute simple control algorithms due to their low computational resources. Despite these limitations, the implementation of advanced control techniques such as Model Predictive Control (MPC) has been explored by the control community in recent years, typically considering simple linear formulations or explicit ones to facilitate the online computation of the control input. These simplifications often lack features and properties that are desirable in real-world environments. In this article, we present an efficient implementation for embedded systems of MPC for tracking with artificial reference, solved via a recently developed structure-exploiting first-order method. This formulation is tailored to a wide range of applications by incorporating essential practical features at a small computational cost, including integration with an offset-free scheme, back-off parameters that enable constraint tightening, and soft constraints that preserve feasibility under disturbances or plant-model mismatch. We accompany this with a framework for probabilistic performance validation of the closed-loop system over long-term operation. We illustrate the applicability of the approach on a Programmable Logic Controller (PLC), incorporated in a hardware-in-the-loop setup to control a nonlinear continuous stirred-tank reactor. The behavior of the closed-loop system is probabilistically validated with respect to constraint violations and the number of iterations required at each time step by the MPC optimization algorithm. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_03603 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Artificial-reference tracking MPC with probabilistically validated performance on industrial embedded systems Gracia, Victor Krupa, Pablo Fele, Filiberto Alamo, Teodoro Systems and Control Industrial embedded systems are typically used to execute simple control algorithms due to their low computational resources. Despite these limitations, the implementation of advanced control techniques such as Model Predictive Control (MPC) has been explored by the control community in recent years, typically considering simple linear formulations or explicit ones to facilitate the online computation of the control input. These simplifications often lack features and properties that are desirable in real-world environments. In this article, we present an efficient implementation for embedded systems of MPC for tracking with artificial reference, solved via a recently developed structure-exploiting first-order method. This formulation is tailored to a wide range of applications by incorporating essential practical features at a small computational cost, including integration with an offset-free scheme, back-off parameters that enable constraint tightening, and soft constraints that preserve feasibility under disturbances or plant-model mismatch. We accompany this with a framework for probabilistic performance validation of the closed-loop system over long-term operation. We illustrate the applicability of the approach on a Programmable Logic Controller (PLC), incorporated in a hardware-in-the-loop setup to control a nonlinear continuous stirred-tank reactor. The behavior of the closed-loop system is probabilistically validated with respect to constraint violations and the number of iterations required at each time step by the MPC optimization algorithm. |
| title | Artificial-reference tracking MPC with probabilistically validated performance on industrial embedded systems |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2511.03603 |