Listar Grupo de Investigación y Desarrollo en Microelectrónic a Aplicada y Control - GIDMAC por autor "2bcff16ffc093e7b7c5f63c5ce6286b5"

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Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia

Contreras Sepulveda, Wilmer; Galban Pineda, Migan Giuseppe; Bustos Marquez, Luis Fernando; Sepúlveda, Sergio; Ramirez Mateus, Jhon Jairo (Revista de Investigación Desarrollo e Innovación: RIDIColombia, 2021-02-15)

The document shows the application of the empirical Angström-Prescott model in different places in Norte de Santander, Colombia. The model estimates solar radiation from hours of sunlight, at a site ...
Performance comparison between PWM and MPPT charge controllers

Laguado, Miguel; Luna Paipa, Eduardo Andres; Bustos Marquez, Luis Fernando; Sepúlveda, Sergio (Scientia et TechnicaColombia, 2019-03)

Charge controllers are implemented in several electronic systems to protect and control the charge and discharge rates of a battery; for off-grid Photovoltaic (PV) systems, there are two types of technologies, Pulse ...

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Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia
...
Contreras Sepulveda, Wilmer | 2021-02-15

The document shows the application of the empirical Angström-Prescott model in different places in Norte de Santander, Colombia. The model estimates solar radiation from hours of sunlight, at a site where brightness and solar radiation are measured. The data were obtained from the Institute of Hydrology, Meteorology and Environmental Studies, IDEAM; algorithms were developed in RStudio to process and ana-lyze the information. The model establishes a linear relationship between solar radiation and the hours of sunlight, in a specific geographic location. Therefore, regression analyzes were performed for three different sites, using histori-cal records of brightness and solar radiation, ob-taining the R-squared coefficients of: 0.73, 0.78,and 0.42. The models were then extrapolated to nearby regions with solar brightness records, but without solar radiation data, to obtain an estimate of radiation at these locations. Finally, a database was created with monthly aver-age information on solar radiation for various subregions of Norte de Santander, which can be used for the design and implementation of photovoltaic systems.

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Performance comparison between PWM and MPPT charge controllers
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Laguado, Miguel | 2019-03

Charge controllers are implemented in several electronic systems to protect and control the charge and discharge rates of a battery; for off-grid Photovoltaic (PV) systems, there are two types of technologies, Pulse Width Modulation (PWM) and Maximum Power Point Tracking (MPPT). In this work, we compared two charge controllers in PV systems with the same technical specifications in order to determine the behavior of each of them under similar environmental conditions. The implementation of both charge controllers was based on firmware and hardware with original designs, using PWM and MPPT technologies. Both PV systems are composed of the charge controller, a 30 W solar panel and a 12 V – 18 Ah battery; in the experimental tests we measured the voltage and current in the panel and the battery in charge and discharge processes, observing that the MPPT controller has a higher average efficiency than the PWM controller, elucidating that the type of technology used in the charge controller has a direct impact on the efficiency, even under unfavorable conditions of solar radiation and environmental temperature. The PWM controller is an option of acceptable efficiency and lower price in relation to the MPPT controller. In the implementation of both controllers we calculated similar periods of autonomy.

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Listar Grupo de Investigación y Desarrollo en Microelectrónic a Aplicada y Control - GIDMAC por autor "2bcff16ffc093e7b7c5f63c5ce6286b5"

Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia

Performance comparison between PWM and MPPT charge controllers

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Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia

Performance comparison between PWM and MPPT charge controllers

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Listar Grupo de Investigación y Desarrollo en Microelectrónic a Aplicada y Control - GIDMAC por autor "2bcff16ffc093e7b7c5f63c5ce6286b5"

Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia ﻿

Performance comparison between PWM and MPPT charge controllers ﻿

Envíos recientes

Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia

Performance comparison between PWM and MPPT charge controllers

Portales Institucionales

Modelo empírico de Angström-Prescott para estimar la radiación solar en Norte de Santander, Colombia

Performance comparison between PWM and MPPT charge controllers