A reliable, fast and low cost maximum power point tracker for photovoltaic applications

Enrique, Juan M.; Andújar, José Manuel; Bohórquez, Miguel Ángel Martínez

doi:10.1016/j.solener.2009.10.011

Cited by 109 publications

(45 citation statements)

References 16 publications

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“…En efecto, para diferentes valores del ángulo de incidencia en un panel, la salida de este cambiará, de modo que el máximo valor de salida se obtiene cuando los rayos del sol son perpendiculares al panel (Escobar Mejía, Holguín Londoño y Osorio, 2010;Kahn, 2012). Por eso, para encontrar la salida máxima de un panel fotovoltaico se pueden implementar sistemas de control de posicionamiento (seguidor solar) mediante una técnica o un algoritmo de búsqueda del punto máximo de energía para mejorar la eficiencia del sistema (Enríquez, Andújar and Bohórquez, 2010;Escobar Mejía et al, 2010;Grupta, 2011;Panait and Tudorache, 2008 la altitud solar; mientras que los segundos sí pueden cumplir con ambas funciones, de ahí que sean más eficientes (Ahmet Senpinar, 2012;Koussa, 2011).…”

Section: Introductionunclassified

Comparativa de la eficiencia entre un sistema fotovoltaico con seguimiento solar y un sistema fotovoltaico fijo / Comparison between a photovoltaic solar tracker efficiency and a fixed photovoltaic system

López

Soto

Ramos

et al. 2018

CIBA

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Comparativa de la eficiencia entre un sistema fotovoltaico con seguimiento solar y un sistema fotovoltaico fijoComparison between a photovoltaic solar tracker efficiency and a fixed photovoltaic systemComparação da eficiência entre um sistema fotovoltaico com rastreamento solar e um sistema fotovoltaico fixo ResumenPara generar de forma eficiente energía eléctrica utilizando paneles fotovoltaicos es indispensable que estos sean instalados de forma correcta. Para ello, se pueden implementar sistemas de control de posicionamiento (seguidor solar) mediante un algoritmo de búsqueda del punto máximo de energía, lo cual sirve para mejorar la eficiencia del sistema. Por tal motivo, en el presente trabajo se analiza el diseño y la construcción de un sistema fotovoltaico con seguimiento solar de dos ejes.El objetivo es determinar la eficiencia de este sistema frente a uno estático. El seguidor solar construido cuenta con celdas independientes que actúan como sensores y alimentan a los motores encargados de girar el panel fotovoltaico tanto en el eje vertical como en el horizontal. Para la adquisición de la energía generada por los dos sistemas de paneles solares se utilizó la tarjeta Arduino Nano 3.0 y diversos módulos. Los resultados de las pruebas realizadas se examinaron mediante el programa computacional SigmaPlot y la comparativa de grupos (ANOVA) de una vía.Asimismo, se realizó una prueba de rangos múltiples, que emplea el método de comparación múltiple de medias de Tukey. Luego se confrontaron los datos recabados durante un periodo de 29 días. Los resultados demostraron que en ese lapso la eficiencia promedio alcanzada por el sistema con seguimiento solar fue de 33 %, mientras que con el sistema fijo fue de 26.28 %. Además, se observó que, durante las primeras horas de cada día, el sistema fotovoltaico fijo logró generar más energía eléctrica que el sistema fotovoltaico con seguimiento solar.Palabras clave: eficiencia, potencia, seguidor solar, sistema fijo, sistema fotovoltaico. AbstractThe optimal installation of photovoltaic panels plays an important role for the efficient generation of electrical energy. To find the maximum energy point of a photovoltaic panel, the positioning control system (solar tracker) can be implemented by means of a technique or a search algorithm to improve the generation system efficiency. In the present work the design and construction of two shafted photovoltaic solar tracker system was addressed. The aim is to determine the efficiency of this system and compare with a fixed or static photovoltaic system. The solar tracker has independent cells that act as sensors and feed the DC motors responsible of turning the photovoltaic panel in both the vertical and the horizontal axis. For the acquisition of the power generated by each solar panel, an Arduino Nano 3.0 card and different modules were used, as well as the environment itself Arduino programming was also utilized. The results were examined through the SigmaPlot computer program. These results were analyzed by comparing groups (...

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Section: Introductionunclassified

Comparativa de la eficiencia entre un sistema fotovoltaico con seguimiento solar y un sistema fotovoltaico fijo / Comparison between a photovoltaic solar tracker efficiency and a fixed photovoltaic system

López

Soto

Ramos

et al. 2018

CIBA

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show abstract

“…Therefore, MPPT controlled DC-DC converters are used to increase the energy conversion efficiency of PV modules. In this context, there are many algorithms and methods presented in the literature [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, even if short circuit current or open circuit voltage measurement-based algorithms come up with a convergence time problem, energy loss and hardware complexity increase. Furthermore, MPPT accuracy is very low in these approaches due to variable coefficients based on environmental factors [4][5][6][15][16][17][18]. This paper proposes a new approach in order to manage MPPT operation in an efficient way to reduce convergence time.…”

Section: Introductionmentioning

confidence: 99%

An improved incremental conductance based MPPT approach for PV modules

Başoğlu¹,

Çakır²

2015

Turk J Elec Eng & Comp Sci

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This paper presents a new maximum power point tracking (MPPT) method based on an incremental conductance (IC) algorithm, constant voltage, and look-up table approach. Convergence time, one of the indicators of MPPT quality, is considered for improving MPPT performance of photovoltaic (PV) modules. In this context, a novel hybrid MPPT approach has been proposed. This proposed method consists of three stages. In the first stage, the value of load resistance is calculated. Then the initial operation point of the PV module is determined by using the constant voltage method or look-up table approach. An IC algorithm is used in order to increase MPPT accuracy in the last stage.One of the novelties of this proposed approach is the determination criterion related to sample numbers of PV module current or solar irradiance. With the help of this approach, the initial operation point of the PV module is optimized before MPPT starts. Thus, convergence time is reduced. In this paper, a DC-DC boost converter has been designed to show the performance of the proposed approach. Then the proposed approach is compared with an IC algorithm.Experimental results show that the performance of the proposed approach is better than that of the IC algorithm in terms of convergence time. On the other hand, since the proposed approach is convenient for reducing convergence time, it can be used instead of variable step size algorithms. Furthermore, there are no topological constraints in the proposed approach. Therefore, this method can be easily applied to other converter topologies for low power or microconverter (module-based converter)-based applications.

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“…By reducing the specification requirement of the digital chip used in MPPT, the use of a simple algorithm can reduce the cost of a PV system. Therefore, a MPPT method using a simple algorithm that provides good tracking performance is desired [1].…”

Section: Introductionmentioning

confidence: 99%

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

Singh¹

2015

IJAREEIE

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ABSTRACT-_Tracking of the maximum power point of a photovoltaic array is usually an essential part of PV systems. In general, PV generation systems have two major problems; the conversion efficiency of electric power generation is low, and the amount of electric power generated by solar arrays changes continuously with weather conditions. Moreover, the solar cell I-V characteristic is nonlinear and varies with irradiation and temperature. There is a unique point on the I-V or P-V curve of the solar array called MPP, at which the entire PV system operates with maximum efficiency and produces its maximum output power. The location of the MPP is not known, but can be located, either through calculation models, or by search algorithms. Therefore MPPT techniques are needed to maintain the PV array"s operating point at its MPP. In this paper, some of the most popular techniques are surveyed which are used in their work by most of the authors.

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A reliable, fast and low cost maximum power point tracker for photovoltaic applications

Cited by 109 publications

References 16 publications

Comparativa de la eficiencia entre un sistema fotovoltaico con seguimiento solar y un sistema fotovoltaico fijo / Comparison between a photovoltaic solar tracker efficiency and a fixed photovoltaic system

Comparativa de la eficiencia entre un sistema fotovoltaico con seguimiento solar y un sistema fotovoltaico fijo / Comparison between a photovoltaic solar tracker efficiency and a fixed photovoltaic system

An improved incremental conductance based MPPT approach for PV modules

Survey on MPPT Techniques in Photovoltaic Solar Energy Systems

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