Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants

The study of battery charge algorithm as a sole power storage agent in off-grid systems is essential. The battery charge algorithm has various methods, and the battery in these methods relies on the quantity of charges. Hence, a charge controller is used to safeguard and regulate battery charge and...

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Autores principales:	Oliver O. Apeh, Edson L. Meyer, Ochuko K. Overen
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Photovoltaics Off-grid system Battery system Charge controller Charge and discharge Science (General) Q1-390 Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/2f8bdd53499f4c8e970e9a1d18836fb5
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spelling	oai:doaj.org-article:2f8bdd53499f4c8e970e9a1d18836fb52021-12-02T05:02:40ZModeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants2405-844010.1016/j.heliyon.2021.e08331https://doaj.org/article/2f8bdd53499f4c8e970e9a1d18836fb52021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2405844021024348https://doaj.org/toc/2405-8440The study of battery charge algorithm as a sole power storage agent in off-grid systems is essential. The battery charge algorithm has various methods, and the battery in these methods relies on the quantity of charges. Hence, a charge controller is used to safeguard and regulate battery charge and discharge for off-grid photovoltaic (PV) systems. This study presents the 11.4 kWp power plant analysis comprising three 3.8 kWp each of off-grid, hybrid and grid-assisted systems with battery capacities of 900 Ah, 1235 Ah and 910 Ah, respectively, where all the systems were reconfigured to function as off-grids. The battery charge controller charges the lead-acid battery using a three-stage charging strategy, including constant current, constant voltage and float charge stage. A DT80 data logger was installed to simultaneously record the electrical parameters of the systems, while Kipp & Zonen CMP 11 pyranometer was selected to measure solar radiation data. Experimentation with three electric bar heaters, each with fan and humidifier, were used as loads to draw constant power of 1.2 kW from batteries of each system on charging and discharging on an overcast and clear sky days for a week. The useful study is performed in the following ways, MPPT tracking performance, battery charging and discharging performance and charge controller efficiency. The performance results reveal that the MPPT can track the PV module maximum point at solar irradiance from 07h15 to around 12h00 maximum power tracking efficiency. An irradiance of illumination fluctuates from 5 W/m2 to 850 W/m2 while the electrical energy consumed by the loads in off-grid, hybrid and grid-assisted systems are 456.12, 568.87 and 80.00 Wh, respectively. It is estimated that individual owners could charge electric appliances from residential and commercial buildings of solar arrays of clean, renewable solar energy.Oliver O. ApehEdson L. MeyerOchuko K. OverenElsevierarticlePhotovoltaicsOff-grid systemBattery systemCharge controllerCharge and dischargeScience (General)Q1-390Social sciences (General)H1-99ENHeliyon, Vol 7, Iss 11, Pp e08331- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Photovoltaics Off-grid system Battery system Charge controller Charge and discharge Science (General) Q1-390 Social sciences (General) H1-99
spellingShingle	Photovoltaics Off-grid system Battery system Charge controller Charge and discharge Science (General) Q1-390 Social sciences (General) H1-99 Oliver O. Apeh Edson L. Meyer Ochuko K. Overen Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
description	The study of battery charge algorithm as a sole power storage agent in off-grid systems is essential. The battery charge algorithm has various methods, and the battery in these methods relies on the quantity of charges. Hence, a charge controller is used to safeguard and regulate battery charge and discharge for off-grid photovoltaic (PV) systems. This study presents the 11.4 kWp power plant analysis comprising three 3.8 kWp each of off-grid, hybrid and grid-assisted systems with battery capacities of 900 Ah, 1235 Ah and 910 Ah, respectively, where all the systems were reconfigured to function as off-grids. The battery charge controller charges the lead-acid battery using a three-stage charging strategy, including constant current, constant voltage and float charge stage. A DT80 data logger was installed to simultaneously record the electrical parameters of the systems, while Kipp & Zonen CMP 11 pyranometer was selected to measure solar radiation data. Experimentation with three electric bar heaters, each with fan and humidifier, were used as loads to draw constant power of 1.2 kW from batteries of each system on charging and discharging on an overcast and clear sky days for a week. The useful study is performed in the following ways, MPPT tracking performance, battery charging and discharging performance and charge controller efficiency. The performance results reveal that the MPPT can track the PV module maximum point at solar irradiance from 07h15 to around 12h00 maximum power tracking efficiency. An irradiance of illumination fluctuates from 5 W/m2 to 850 W/m2 while the electrical energy consumed by the loads in off-grid, hybrid and grid-assisted systems are 456.12, 568.87 and 80.00 Wh, respectively. It is estimated that individual owners could charge electric appliances from residential and commercial buildings of solar arrays of clean, renewable solar energy.
format	article
author	Oliver O. Apeh Edson L. Meyer Ochuko K. Overen
author_facet	Oliver O. Apeh Edson L. Meyer Ochuko K. Overen
author_sort	Oliver O. Apeh
title	Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
title_short	Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
title_full	Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
title_fullStr	Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
title_full_unstemmed	Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
title_sort	modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/2f8bdd53499f4c8e970e9a1d18836fb5
work_keys_str_mv	AT oliveroapeh modelingandexperimentalanalysisofbatterychargecontrollersforcomparingthreeoffgridphotovoltaicpowerplants AT edsonlmeyer modelingandexperimentalanalysisofbatterychargecontrollersforcomparingthreeoffgridphotovoltaicpowerplants AT ochukokoveren modelingandexperimentalanalysisofbatterychargecontrollersforcomparingthreeoffgridphotovoltaicpowerplants
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Modeling and experimental analysis of battery charge controllers for comparing three off-grid photovoltaic power plants

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