An improved model and performance analysis for grid-connected photovoltaic system in Oman
The PV systems' sources are environmentally friendly, but at the same time, they are constantly changing with time. When evaluating solar energy resources, it is necessary to consider the variability and effects of different environmental operation parameters like solar irradiances, ambient tem...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-12-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844022035253 |
| _version_ | 1797960902716162048 |
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| author | Omar A. Al-Shahri Firas B. Ismail Nizar F.O. Al-Muhsen Ammar Al-Bazi M.A. Hannan |
| author_facet | Omar A. Al-Shahri Firas B. Ismail Nizar F.O. Al-Muhsen Ammar Al-Bazi M.A. Hannan |
| author_sort | Omar A. Al-Shahri |
| collection | DOAJ |
| description | The PV systems' sources are environmentally friendly, but at the same time, they are constantly changing with time. When evaluating solar energy resources, it is necessary to consider the variability and effects of different environmental operation parameters like solar irradiances, ambient temperature, and module temperature. The study introduces a method to simulate an existing photovoltaic system using a mathematical model that permits intelligent strategies to optimise the efficiency and adjust the most effective operational parameters for the solar energy systems. A mathematical analysis for the data framework, including correlation and regression coefficients, was calculated to identify and chart the relationships between the system's most influential parameters and the generated power from the PV system. An improved mathematical model was built with the most influential parameters. The improved model was simple, accurate, and based on the loss ratio by eliminating the unknown parameters. The system's efficiency was analysed using an existing data framework-recorded hourly from 1st January 2017 to December 2018 for a grid-connected photovoltaic system installed in the south of Oman. The results showed that the most influential parameters on the efficiency were the module's solar irradiance and surface temperature. The operating parameters such as ambient temperature, wind speed, and air humidity had a negligible effect on the generated power compared to the cell temperatures and solar radiation. The dissipation factor was used in the new output current and voltage equations to stimulate the output power of the PV model. The improved model was validated in a MATLAB Simulink and showed a more promising output with a lower RMSE of 5 %. |
| first_indexed | 2024-04-11T00:51:16Z |
| format | Article |
| id | doaj.art-85ba8c0678534def9d6a7e3fdb686e43 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-11T00:51:16Z |
| publishDate | 2022-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-85ba8c0678534def9d6a7e3fdb686e432023-01-05T08:39:31ZengElsevierHeliyon2405-84402022-12-01812e12237An improved model and performance analysis for grid-connected photovoltaic system in OmanOmar A. Al-Shahri0Firas B. Ismail1Nizar F.O. Al-Muhsen2Ammar Al-Bazi3M.A. Hannan4Power Generation Unit, Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), 43000, Kajang, MalaysiaPower Generation Unit, Institute of Power Engineering (IPE), Universiti Tenaga Nasional (UNITEN), 43000, Kajang, Malaysia; Corresponding author.Technical Instructors Training Institute, Middle Technical University, Baghdad, IraqOperations and Information Management Department, Aston Business School, Birmingham, UKDept. of Electrical Power Eng., Universiti Tenaga Nasional, 43000, Kajang, MalaysiaThe PV systems' sources are environmentally friendly, but at the same time, they are constantly changing with time. When evaluating solar energy resources, it is necessary to consider the variability and effects of different environmental operation parameters like solar irradiances, ambient temperature, and module temperature. The study introduces a method to simulate an existing photovoltaic system using a mathematical model that permits intelligent strategies to optimise the efficiency and adjust the most effective operational parameters for the solar energy systems. A mathematical analysis for the data framework, including correlation and regression coefficients, was calculated to identify and chart the relationships between the system's most influential parameters and the generated power from the PV system. An improved mathematical model was built with the most influential parameters. The improved model was simple, accurate, and based on the loss ratio by eliminating the unknown parameters. The system's efficiency was analysed using an existing data framework-recorded hourly from 1st January 2017 to December 2018 for a grid-connected photovoltaic system installed in the south of Oman. The results showed that the most influential parameters on the efficiency were the module's solar irradiance and surface temperature. The operating parameters such as ambient temperature, wind speed, and air humidity had a negligible effect on the generated power compared to the cell temperatures and solar radiation. The dissipation factor was used in the new output current and voltage equations to stimulate the output power of the PV model. The improved model was validated in a MATLAB Simulink and showed a more promising output with a lower RMSE of 5 %.http://www.sciencedirect.com/science/article/pii/S2405844022035253Solar energy systemsData analysisSystem efficiency analysisMathematical modelValidation of the established modelEnergy |
| spellingShingle | Omar A. Al-Shahri Firas B. Ismail Nizar F.O. Al-Muhsen Ammar Al-Bazi M.A. Hannan An improved model and performance analysis for grid-connected photovoltaic system in Oman Heliyon Solar energy systems Data analysis System efficiency analysis Mathematical model Validation of the established model Energy |
| title | An improved model and performance analysis for grid-connected photovoltaic system in Oman |
| title_full | An improved model and performance analysis for grid-connected photovoltaic system in Oman |
| title_fullStr | An improved model and performance analysis for grid-connected photovoltaic system in Oman |
| title_full_unstemmed | An improved model and performance analysis for grid-connected photovoltaic system in Oman |
| title_short | An improved model and performance analysis for grid-connected photovoltaic system in Oman |
| title_sort | improved model and performance analysis for grid connected photovoltaic system in oman |
| topic | Solar energy systems Data analysis System efficiency analysis Mathematical model Validation of the established model Energy |
| url | http://www.sciencedirect.com/science/article/pii/S2405844022035253 |
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