Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Isabel S. Jesus"'
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Algorithms, Vol 16, Iss 1, p 35 (2023)
The PID is the most common type of algorithm used in control system applications [...]
Externí odkaz:
https://doaj.org/article/79d24954ed8d4abe86c66beeeb6e7968
Autor:
Diogo Remoaldo, Isabel S. Jesus
Publikováno v:
Algorithms, Vol 14, Iss 24, p 24 (2021)
Algorithms
Volume 14
Issue 1
Algorithms
Volume 14
Issue 1
This paper presents the results obtained for the maximum power point tracking (MPPT) technique applied to a photovoltaic (PV) system, composed of five solar panels in series using two different methodologies. First, we considered a traditional Pertur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f05d1399904c46117d9edc805faeeb2
https://www.mdpi.com/1999-4893/14/1/24
https://www.mdpi.com/1999-4893/14/1/24
Autor:
Isabel S. Jesus, Ramiro S. Barbosa
Publikováno v:
AEU - International Journal of Electronics and Communications. 78:54-63
The fractional calculation is over 300 years old, but only in the last decades its application arisen in many areas of science and engineering. The explanation for this expansion in the scientific and tecnologic worlds is due to the good results obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5e802b685853000ae1779071dcc40a0
https://doi.org/10.1016/j.aeue.2017.05.014
https://doi.org/10.1016/j.aeue.2017.05.014
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Hybrid Intelligent Systems ISBN: 9783030143466
HIS
HIS
This article investigates the use of fuzzy algorithms for fractional PID control systems. The tuning of the fuzzy controllers is based on the prior knowledge of integer or fractional-order control strategy. The suggested fuzzy controllers are fine tu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80eed302b894c8b77719bb0846066e86
https://doi.org/10.1007/978-3-030-14347-3_42
https://doi.org/10.1007/978-3-030-14347-3_42
Analysis of a Fractional-Order Nonlinear System with Hysteresis Nonlinearity via Describing Function
Publikováno v:
Journal of Applied Nonlinear Dynamics. 4:81-89
The describing function(DF) is one method often used for the analysis of nonlinear systems and the prediction of limit-cycles. In this study, we explore the DF using frequency response methods in order to analyze the effectiveness of this technique i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef048140271398d0128ed113d1049be4
https://doi.org/10.5890/jand.2015.03.007
https://doi.org/10.5890/jand.2015.03.007
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Mathematical Problems in Engineering, Vol 2014 (2014)
The fractional-order concepts are a useful tool to describe several physical phenomena, and nowadays they are widely used in the field of automatic control. A genetic algorithm (GA) is a search process for finding approximate solutions in optimizatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38b5502751b36b91579c98e9e7db2b68
https://doi.org/10.1155/2014/676121
https://doi.org/10.1155/2014/676121
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9783319436708
In this paper we study the control of a stable oscillatory system with a time delay, based on the application of the fractional calculus concepts. In this perspective, several algorithms are investigated and compared, when integrated within a Smith p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aedc710af3022e1b32812dd7d3f49c17
https://doi.org/10.1007/978-3-319-43671-5_7
https://doi.org/10.1007/978-3-319-43671-5_7
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
IFAC Proceedings Volumes. 44:7631-7636
In this paper we study the control of a heat diffusion system in the perspective of fractional control and using a particle swarm optimization (PSO) algorithm. PSO is one of the latest evolutionary optimization techniques, inspired by social behavior
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdda635fcc67ff6539c9a0bd63a92249
https://doi.org/10.3182/20110828-6-it-1002.02424
https://doi.org/10.3182/20110828-6-it-1002.02424
Publikováno v:
IFAC Proceedings Volumes. 41:15273-15278
In this paper are investigated several types of fractional-order PID controllers in the velocity control of a servo system. The fractional controller is more flexible and gives the possibility of adjusting carefully the dynamical properties of a cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b37552450915d5cf845756d9e32d94df
https://doi.org/10.3182/20080706-5-kr-1001.02583
https://doi.org/10.3182/20080706-5-kr-1001.02583
Autor:
Ramiro S. Barbosa, Isabel S. Jesus
Publikováno v:
Lecture Notes in Electrical Engineering ISBN: 9783319103792
The differentiation of non-integer order has its origin in the seventeen century, but only in the last two decades appeared the first applications in the area of control theory. In this paper we consider the development of an optimal fuzzy fractional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37e4070d619ca81f85e1d073c4394e30
https://doi.org/10.1007/978-3-319-10380-8_20
https://doi.org/10.1007/978-3-319-10380-8_20