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DYNA

versão impressa ISSN 0012-7353

Resumo

SERENO, Juan E.; CAICEDO, Michelle A.  e  RIVADENEIRA, Pablo S.. Artificial pancreas: glycemic control strategies for avoiding hypoglycemia. Dyna rev.fac.nac.minas [online]. 2018, vol.85, n.207, pp.198-207. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v85n207.71535.

This paper examines the performance of two new closed-loop control strategies developed as part of the Artificial Pancreas project, this being the most promising treatment for type 1 diabetes mellitus. The first strategy uses a new version of the well-known proportional, integral and derivative control, developed to respect state and input positivity constraints. The second is a new formulation of model-based predictive control with an impulsive input. The strategies’ performance is evaluated with 50 virtual patients taken from the literature and the UVa/Padova metabolic simulator, approved by the US Food and Drug Administration. Also, a robustness analysis is added to evaluate the strategies under the parametric variations of the most important physiological parameters. The results show that both strategies have a good performance with low to moderate plant-model mismatch.

Palavras-chave : artificial pancreas; diabetes mellitus type 1; PID control; model predictive control; performance; robustness.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )