Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement
The present Nigerian transmission network is faced with the difficulty of evacuating and dispatching reliable and quality electricity supply and simultaneously maintaining an operational standard of security to prevent any collapses. Therefore, this study developed a novel technique to optimize elec...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-07-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844021016662 |
| _version_ | 1818721758872600576 |
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| author | Ademola Abdulkareem A. Adesanya A.F. Agbetuyi A.S. Alayande |
| author_facet | Ademola Abdulkareem A. Adesanya A.F. Agbetuyi A.S. Alayande |
| author_sort | Ademola Abdulkareem |
| collection | DOAJ |
| description | The present Nigerian transmission network is faced with the difficulty of evacuating and dispatching reliable and quality electricity supply and simultaneously maintaining an operational standard of security to prevent any collapses. Therefore, this study developed a novel technique to optimize electrical current flow to provide in-depth research and analysis of current flowing in the transmission network circuit prone to danger during short-circuit faults. The research methodology involved the generation of unbalanced short-circuit calculations at every single node of the three-phase network using the symmetrical component method. Numerical simulation of different types of unbalanced short-circuit fault into the entire 330kV transmission network using unbalanced fault algorithms written in a flexible MATLAB program environment is also performed on every bus. The influence of these short-circuit faults is examined on the generated spectrum of line current magnitude. This study then generates a series of unbalanced current circuit and line losses analysis that unveils the different scenarios regarding existing network performance. The method adopted is promising. It established the most critical lines (about 20) with high unbalanced current magnitudes and high line losses during the disturbance. Based on the result analysis, four (quad) bundles of conductors is designed as a proposed modification to the upgrade of all critical double circuit lines and the conversion of single critical lines on the 330kV transmission network to improve the power transfer capability and also meet the future transmission network development plan. Furthermore, recommendations that are considered desirable in this study are proffered to ensure acceptable power quality and security in the network. |
| first_indexed | 2024-12-17T20:43:50Z |
| format | Article |
| id | doaj.art-89da649c450b4335bc6446fd43c656a7 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-12-17T20:43:50Z |
| publishDate | 2021-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-89da649c450b4335bc6446fd43c656a72022-12-21T21:33:15ZengElsevierHeliyon2405-84402021-07-0177e07563Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancementAdemola Abdulkareem0A. Adesanya1A.F. Agbetuyi2A.S. Alayande3Department of Electrical and Information Engineering, Covenant University, Nigeria; Corresponding author.Department of Electrical and Information Engineering, Covenant University, NigeriaDepartment of Electrical and Information Engineering, Covenant University, NigeriaDepartment of Electrical and Electronics Engineering, University of Lagos, NigeriaThe present Nigerian transmission network is faced with the difficulty of evacuating and dispatching reliable and quality electricity supply and simultaneously maintaining an operational standard of security to prevent any collapses. Therefore, this study developed a novel technique to optimize electrical current flow to provide in-depth research and analysis of current flowing in the transmission network circuit prone to danger during short-circuit faults. The research methodology involved the generation of unbalanced short-circuit calculations at every single node of the three-phase network using the symmetrical component method. Numerical simulation of different types of unbalanced short-circuit fault into the entire 330kV transmission network using unbalanced fault algorithms written in a flexible MATLAB program environment is also performed on every bus. The influence of these short-circuit faults is examined on the generated spectrum of line current magnitude. This study then generates a series of unbalanced current circuit and line losses analysis that unveils the different scenarios regarding existing network performance. The method adopted is promising. It established the most critical lines (about 20) with high unbalanced current magnitudes and high line losses during the disturbance. Based on the result analysis, four (quad) bundles of conductors is designed as a proposed modification to the upgrade of all critical double circuit lines and the conversion of single critical lines on the 330kV transmission network to improve the power transfer capability and also meet the future transmission network development plan. Furthermore, recommendations that are considered desirable in this study are proffered to ensure acceptable power quality and security in the network.http://www.sciencedirect.com/science/article/pii/S2405844021016662Novel techniqueOptimize currentSymmetrical component algorithmNumerical simulationLine current spectrumUnbalanced current circuit |
| spellingShingle | Ademola Abdulkareem A. Adesanya A.F. Agbetuyi A.S. Alayande Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement Heliyon Novel technique Optimize current Symmetrical component algorithm Numerical simulation Line current spectrum Unbalanced current circuit |
| title | Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement |
| title_full | Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement |
| title_fullStr | Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement |
| title_full_unstemmed | Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement |
| title_short | Novel approach to determine unbalanced current circuit on Nigerian 330kV transmission grid for reliability and security enhancement |
| title_sort | novel approach to determine unbalanced current circuit on nigerian 330kv transmission grid for reliability and security enhancement |
| topic | Novel technique Optimize current Symmetrical component algorithm Numerical simulation Line current spectrum Unbalanced current circuit |
| url | http://www.sciencedirect.com/science/article/pii/S2405844021016662 |
| work_keys_str_mv | AT ademolaabdulkareem novelapproachtodetermineunbalancedcurrentcircuitonnigerian330kvtransmissiongridforreliabilityandsecurityenhancement AT aadesanya novelapproachtodetermineunbalancedcurrentcircuitonnigerian330kvtransmissiongridforreliabilityandsecurityenhancement AT afagbetuyi novelapproachtodetermineunbalancedcurrentcircuitonnigerian330kvtransmissiongridforreliabilityandsecurityenhancement AT asalayande novelapproachtodetermineunbalancedcurrentcircuitonnigerian330kvtransmissiongridforreliabilityandsecurityenhancement |