Alaan Ubaiara Brito

Dr. Alaan Ubaiara Brito

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Research Focus & Metrics

Academic Career Length

22Years (2005-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 July 2021 in Marine Pollution Bulletin
Verified
Journal Article
Closed access
ACAlan Cavalcanti Cunha
Alan Cavalcanti Cunha
CAcarlos henrique medeiros de abreu
carlos henrique medeiros de abreu
JCJonathan Crizanto
Jonathan Crizanto
HCHelenilza Ferreira Albuquerque Cunha
Helenilza Ferreira Albuquerque Cunha
ABAlaan Ubaiara Brito
Alaan Ubaiara Brito
NPNewton Narciso Narciso Pereira
Newton Narciso Narciso Pereira

30 December 2005 in Progress in Photovoltaics: Research and Applications
Verified
Journal Article
Open access
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ABAlaan Ubaiara Brito
Alaan Ubaiara Brito
RZROBERTO ZILLES
ROBERTO ZILLES
This work presents a systematized procedure for the parameter characterization of a variable‐speed drive (VSD) for use in applications to photovoltaic pumping systems (PVPS). The study focuses on the process of the PID controller's tuning of the VSD, in order to optimize the configuration. In this work, three methods of tuning are analyzed and the results show that the methods based on the system's response in open‐loop are the most suitable, as well as the use of only the integral proportional control actions (PI). Copyright © 2005 John Wiley & Sons, Ltd.

3 February 2016 in IEEE Sensors Journal
Verified
Journal Article
Closed access
GMGeraldo N. A. Maranhao
Geraldo N. A. Maranhao
ABAlaan Ubaiara Brito
Alaan Ubaiara Brito
JPJoao Tavares Pinho
Joao Tavares Pinho
JFJessica Kelly Silva Fonseca
Jessica Kelly Silva Fonseca
ALAnderson Marques Leal
Anderson Marques Leal
WMWilson Negrao Macedo
Wilson Negrao Macedo
In this paper, a fuzzy controller applied to variable-speed drive for the use in direct-coupled photovoltaic (PV) pumping systems is proposed. The fuzzy logic system used is of the Mandani type, embedded in a microcontroller, and corresponds to a proportional-derivative controller. A low-power PV module is used to detected variations in the irradiance incident on the PV array. Experimental tests are performed using a motopump testing workbench, which is able to simulate water wells with different manometric heights. The results show that the fuzzy controller is capable of operating the system continuously throughout the day, with an average efficiency of 23%.

1 July 2012 in Revista Brasileira de Meteorologia
Verified
Journal Article
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PDF file
DMDerivan Dutra Marques
Derivan Dutra Marques
ABAlaan Ubaiara Brito
Alaan Ubaiara Brito
ACAlan Cavalcanti Cunha
Alan Cavalcanti Cunha
LSLeandro Rodrigues de Souza
Leandro Rodrigues de Souza
O objetivo do estudo foi estimar o potencial de energia solar a partir da variação da radiação solar global (RSG), no Estado do Amapá no período de 2006 a 2008. Foram utilizadas séries históricas temporais de RSG de quatro estações meteorológicas automáticas (PCD's) distribuídas numa área central do Estado. Os resultados indicaram que a distribuição da RSG anual apresentou valor máximo da ordem de 4900 Wh.m-2.dia-1 sobre a estação de Macapá, devido a sua proximidade com a linha do equador. Em Serra do Navio, Pacuí e Oiapoque foram observados valores entre 4000, 4400 e 3800 Wh.m-2.dia-1, respectivamente. Conclui-se que as localidades estudadas do Amapá apresentam significativo potencial para aproveitamento fotovoltaico durante todo o ano. Este potencial sugere uma viabilidade estratégica de instalação de sistemas fotovoltaicos, tanto em sistemas urbanos consolidados quanto em comunidades remotas para geração de energia elétrica.

29 March 2020 in Computers and Electrical Engineering
Verified
Journal Article
Closed access
AFAndré de Oliveira Ferreira
André de Oliveira Ferreira
ABAlaan Ubaiara Brito
Alaan Ubaiara Brito
MGMarcos André Barros Galhardo
Marcos André Barros Galhardo
LFLeonam Ferreira
Leonam Ferreira
WMWilson Negrão Macêdo
Wilson Negrão Macêdo

16 May 2006 in Progress in Photovoltaics: Research and Applications
Verified
Journal Article
Closed access
PDF file
ABAlaan Ubaiara Brito
Alaan Ubaiara Brito
MFM. C. Fedrizzi
M. C. Fedrizzi
RZROBERTO ZILLES
ROBERTO ZILLES