Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system

Solar photovoltaic systems for off-grid power applications are widely used in rural lighting, telecommunication base stations, and remote monitoring among others. The base stations or remote antenna units (RAU) of the fibre-wireless (FiWi) system are deployed in remote or blind-spot urban areas wher...

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Main Author:	Dolah, Asban
Format:	Thesis
Language:	English
Published:	2021
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/107055/1/AsbanDolahPFTIR2021.pdf
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id	my-utm-ep.107055
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spelling	my-utm-ep.1070552024-08-29T03:56:52Z Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system 2021 Dolah, Asban TK Electrical engineering. Electronics Nuclear engineering Solar photovoltaic systems for off-grid power applications are widely used in rural lighting, telecommunication base stations, and remote monitoring among others. The base stations or remote antenna units (RAU) of the fibre-wireless (FiWi) system are deployed in remote or blind-spot urban areas where grid connected power supplies are unavailable. Therefore, the use of a stand-alone photovoltaic system is required. The different power output of photovoltaic cells due to weather conditions in Malaysia can cause severe problems in power efficiency and performance of solar power system. The Perturbation and Observation (P&O) method is a power-detection tracking technology that enables the DC-DC converter to work at Maximum Power Point (MPP). The main objective of the research is to improve the Maximum Power Point Tracking (MPPT) algorithm by improving P&O with variable step size for the buck converter to reach MPPT faster and more efficiently. The objective of the hardware section is to design and fabricate a DC-DC converter with a variable step size for use in the MPPT algorithm. In monitoring the performance of the DC-DC converter, measuring the output voltage that is close to its reference value should provide excellent accuracy of the converter. The proposed MPPT algorithm and DCDC converter have been validated through simulations and experiments. The simulation and modelling of the photovoltaic cell have been conducted using MATLAB/Simulink®. The proposed models have been employed to predict the behaviour of the photovoltaic cell under different physical and environmental parameters. Based on the simulation results, the proposed method effectively reduces oscillations and simultaneously maintains sufficient tracking capability. The results also indicate that it is able to regulate MPPT, reduces oscillations, maintains the output voltage of the DC-DC converter at a constant state and provides better accuracy performance under rapid solar irradiance changes. The speed detected for MPPT is approximately 0.12 seconds. On average, the accuracy of power of the proposed method is substantially 98 per cent. 2021 Thesis http://eprints.utm.my/107055/ http://eprints.utm.my/107055/1/AsbanDolahPFTIR2021.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:156411?site_name=GlobalView&query=20240319-121220&queryType=vitalDismax phd doctoral Universiti Teknologi Malaysia Razak Faculty of Technology and Informatics remote antenna units (RAU). fibre-wireless (FiWi). Perturbation and Observation (P&O).
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Dolah, Asban Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
description	Solar photovoltaic systems for off-grid power applications are widely used in rural lighting, telecommunication base stations, and remote monitoring among others. The base stations or remote antenna units (RAU) of the fibre-wireless (FiWi) system are deployed in remote or blind-spot urban areas where grid connected power supplies are unavailable. Therefore, the use of a stand-alone photovoltaic system is required. The different power output of photovoltaic cells due to weather conditions in Malaysia can cause severe problems in power efficiency and performance of solar power system. The Perturbation and Observation (P&O) method is a power-detection tracking technology that enables the DC-DC converter to work at Maximum Power Point (MPP). The main objective of the research is to improve the Maximum Power Point Tracking (MPPT) algorithm by improving P&O with variable step size for the buck converter to reach MPPT faster and more efficiently. The objective of the hardware section is to design and fabricate a DC-DC converter with a variable step size for use in the MPPT algorithm. In monitoring the performance of the DC-DC converter, measuring the output voltage that is close to its reference value should provide excellent accuracy of the converter. The proposed MPPT algorithm and DCDC converter have been validated through simulations and experiments. The simulation and modelling of the photovoltaic cell have been conducted using MATLAB/Simulink®. The proposed models have been employed to predict the behaviour of the photovoltaic cell under different physical and environmental parameters. Based on the simulation results, the proposed method effectively reduces oscillations and simultaneously maintains sufficient tracking capability. The results also indicate that it is able to regulate MPPT, reduces oscillations, maintains the output voltage of the DC-DC converter at a constant state and provides better accuracy performance under rapid solar irradiance changes. The speed detected for MPPT is approximately 0.12 seconds. On average, the accuracy of power of the proposed method is substantially 98 per cent.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Dolah, Asban
author_facet	Dolah, Asban
author_sort	Dolah, Asban
title	Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
title_short	Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
title_full	Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
title_fullStr	Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
title_full_unstemmed	Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
title_sort	maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system
granting_institution	Universiti Teknologi Malaysia
granting_department	Razak Faculty of Technology and Informatics
publishDate	2021
url	http://eprints.utm.my/107055/1/AsbanDolahPFTIR2021.pdf
_version_	1811772239869116416

Maximum power point tracking using improved perturb an observe technique stand-alone photovoltaic system

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