Browsing by Author "Munoz-Carpintero, Diego"

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    Distributed Model-Based Predictive Secondary Control for Hybrid AC/DC Microgrids
    (2023) Rute-Luengo, Erwin; Navas-Fonseca, Alex; Gomez, Juan S.; Espina, Enrique; Burgos-Mellado, Claudio; Saez, Doris; Sumner, Mark; Munoz-Carpintero, Diego
    This article presents a novel scheme based on distributed model-based predictive control for the secondary level control of hybrid ac/dc microgrids (MGs). Prediction models based on droop control and power-transfer equations are proposed to characterize the generators in both the ac and dc sub-MGs, whereas power balance constraints are used to predict the behavior of interlinking converters. The operational constraints (such as powers and control action limits) are included in all the formulations. Experimental results validate the proposed scheme for the following cases: 1) load changes, working within operating constraints; 2) managing frequency regulation in the ac sub-MG, voltage regulation in the dc sub-MG, and global power consensus in the whole hybrid MG; and 3) maintaining the MG performance in the presence of communication malfunction while ensuring that plug-and-play capability is preserved.
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    Transmit power policies for stochastic stabilisation of multi-link wireless networked control systems
    (2025) Maass, Alejandro I.; Nesic, Dragan; Postoyan, Romain; Varma, Vineeth S.; Lasaulce, Samson; Munoz-Carpintero, Diego
    Transmit power control is crucial in wireless networks due to limited battery power, impacting both economic and environmental aspects by reducing power consumption. High transmission power diminishes node lifespan, causes interference, and pollution. Existing work in wireless networks mainly focuses on power policies for communication aspects like quality of service and channel capacity, while wireless networked control systems (WNCSs) require adapted policies for controloriented requirements such as stability. Recent research in the control community has predominantly focused on linear systems or non-linear systems with a single-link perspective. This paper introduces a framework for designing stabilising transmit power levels for broader classes of non-linear plants and multi-link scenarios. By considering the non-linear relationship between channel success probabilities and transmit power, we establish stability conditions linking channel probabilities and transmission rate. These results, along with practical interference models, offer a methodology for stabilising transmit power in non-linear and multi-link WNCSs. (c) 2024 Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.