Martinez Salamero, L.; Cid Pastor, A.; El Aroudi, A.; Giral, R.; Calvente, Javier(Universitat Politècnica de València, 2009-10-08)
[ES] En este trabajo se presenta de forma tutorial los conceptos básicos de modelado y control de convertidores conmutados continua-continua. Tras definir la Electrónica de Potencia y su dominio de utilización, se presenta ...
In 2011, Khattri and Abbasbandy developed an optimal two-step Jarratt-like method for approximating simple roots of a nonlinear equation. We develop their method for solving nonlinear systems of equations. The main feature ...
In this paper we present and analyze a set of predictor-corrector iterative methods with increasing order of convergence, for solving systems of nonlinear equations. Our aim is to achieve high order of convergence with few ...
[EN] We present a new Jarratt-type family of optimal fourth- and sixth-order iterative methods for solving nonlinear equations, along with their convergence properties. The schemes are extended to nonlinear systems of ...
Cecilia, A.; Costa-Castelló, R.(Universitat Politècnica de València, 2020-04-07)
[EN] In the area of PEM fuel cells, water management remains one of the most challenging issues affecting PEMFC efficiency and lifetime. Liquid water active control and supervision techniques are limited by the absence of ...
Chicharro, Francisco I.; Cordero Barbero, Alicia; Garrido, Neus; Torregrosa Sánchez, Juan Ramón(Elsevier, 2022-05-15)
[EN] In this work, we start from a family of iterative methods for solving nonlinear multidimensional problems, designed using the inclusion of a weight function on its iterative
expression. A deep dynamical study of the ...
Chicharro, Francisco I.; Cordero Barbero, Alicia; Garrido, Neus; Torregrosa Sánchez, Juan Ramón(Elsevier, 2020-06)
[EN] Iterative methods with memory for solving nonlinear systems have been designed. For approximating the accelerating parameters the Kurchatov's divided difference is used as an approximation of the derivative of second ...
[EN] In this work, a closed-loop control strategy is proposed. It allows tracking optimal profiles for a fed-batch bioprocess. The main advantage of this approach is that the control actions are computed from a linear ...
Pantano, M. N.; Fernández, M. C.; Rodríguez, L.; Scaglia, G. J.E.(Universitat Politècnica de València, 2020-12-23)
[EN] This work presents a novel methodology for the dynamic optimization of the biodiesel production process from vegetable oils in discontinuous mode. The proposed methodology has the particularity of using the Fourier ...
Garcia-Nieto, S.; Martínez Iranzo, Miguel Andrés; Salcedo Romero de Ávila, José Vicente; Laurí Pla, David(Wiley-Blackwell, 2012)
[EN] This paper presents the potential of open source software for designing educational tools in the automatization field. In particular, this paper presents a complete tool that students can use for studying and testing ...
Salcedo-Romero-de-Ávila, José-Vicente; Martínez Iranzo, Miguel Andrés; Ramos Fernández, César; Herrero Durá, Juan Manuel(Elsevier, 2007)
[EN] The problem of controlling a liquid-gas separation process is approached by using LPV control techniques. An LPV model is derived from a nonlinear model of the process using differential inclusion techniques. Once an ...
Sanz Díaz, Ricardo; García Gil, Pedro José; Zhong, Qing-Chang; Albertos Pérez, Pedro(Institute of Electrical and Electronics Engineers (IEEE), 2017-01)
In this paper, a new robust control strategy based on a predictor and the uncertainty and disturbance estimator is developed for a class of uncertain nonlinear systems with input/output delays. The closed-loop system is ...
Capdevila Brown, Raudys Rafael(Universitat Politècnica de València, 2024-01-03)
[ES] Se puede afirmar que la inmensa mayoría de los fenómenos de la naturaleza estudiados tienen un carácter no lineal.
Muchos de estos problemas se pueden modelar utilizando ecuaciones diferenciales no lineales (EDNL) ...
Cordero Barbero, Alicia; Torregrosa Sánchez, Juan Ramón; Vassileva, María P.(Elsevier, 2012-08-01)
A new technique for designing iterative methods for solving nonlinear systems is presented. This procedure, called pseudocomposition, uses a known method as a predictor and the Gaussian quadrature as a corrector. The order ...
Sanz Diaz, Ricardo; García Gil, Pedro José; Fridman, Emilia; Albertos Pérez, Pedro(Taylor & Francis, 2020-02-01)
[EN] This paper deals with asymptotic stabilisation of a class of nonlinear input-delayed systems via dynamic output feedback in the presence of disturbances. The proposed strategy has the structure of an observer-based ...
Cordero Barbero, Alicia; Hernandez-Veron, M. A.; Romero, N.; Torregrosa Sánchez, Juan Ramón(Elsevier, 2015-01-01)
In this paper, a semilocal convergence result in Banach spaces of an efficient fifth-order method is analyzed. Recurrence relations are used in order to prove this convergence, and some a priori error bounds are found. ...
Hueso Pagoaga, José Luís; Martínez Molada, Eulalia(Springer-Verlag, 2014)
[EN] In this work, we prove a third and fourth convergence order result for a family of iterative methods for solving nonlinear systems in Banach spaces. We analyze the semilocal convergence by using recurrence relations, ...
Lotfi, T.; Bakhtiari, P.; Cordero Barbero, Alicia; Mahdiani, K.; Torregrosa Sánchez, Juan Ramón(Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2015-09-02)
It is attempted to put forward a new multipoint iterative method of sixth-order convergence for approximating solutions of nonlinear systems of equations. It requires the evaluation of two vector-function and two Jacobian ...
Cordero Barbero, Alicia; García-Maimo, Javier; Torregrosa Sánchez, Juan Ramón; Vassileva, Maria Penkova(MDPI AG, 2019-04-25)
[EN] In this manuscript, we design two classes of parametric iterative schemes to solve nonlinear problems that do not need to evaluate Jacobian matrices and need to solve three linear systems per iteration with the same ...
[EN] There are several problems of pure and applied science which can be studied in the unified
framework of the scalar and vectorial nonlinear equations. In this paper, we propose a
sixth-order family of Jarratt type ...