Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit
Abstract Addis Ababa, the capital of Ethiopia, inaugurated the first electrified light rail transitsystem 4 years ago in September 2015, which makes it the first of its kind in sub‐Saharan and eastern African countries. The railway line has a total length of 34.25 km with 39 passenger stations and 1...
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| Format: | Article |
| Language: | English |
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Wiley
2021-12-01
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| Series: | IET Electrical Systems in Transportation |
| Online Access: | https://doi.org/10.1049/els2.12019 |
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| author | Shimelis Atli Assefa Asegid Belay Kebede Demissu Legese |
| author_facet | Shimelis Atli Assefa Asegid Belay Kebede Demissu Legese |
| author_sort | Shimelis Atli Assefa |
| collection | DOAJ |
| description | Abstract Addis Ababa, the capital of Ethiopia, inaugurated the first electrified light rail transitsystem 4 years ago in September 2015, which makes it the first of its kind in sub‐Saharan and eastern African countries. The railway line has a total length of 34.25 km with 39 passenger stations and 19 traction substations. Currently, the performance of the traction power supply system degraded severely due to the existence of harmonics in the traction network. Realizing the above problem, the harmonic analysis of Addis Ababa light rail transit electrified power supply system is presented. The analysis is performed on one of the substations called ‘Lideta’ rectifier substation. To this end, mathematical modelling and analysis of the traction main components such as the catenary, the traction transformer, the traction rectifier and the load have been done. Finally, MATLAB simulation has been performed, and the result comes with a significant reduction in harmonic distortion, which is far below the 5% limits of IEEE standard. |
| format | Article |
| id | doaj-art-ad4221d53ecb40c9be2942d37506984f |
| institution | Kabale University |
| issn | 2042-9738 2042-9746 |
| language | English |
| publishDate | 2021-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Electrical Systems in Transportation |
| spelling | doaj-art-ad4221d53ecb40c9be2942d37506984f2025-08-20T03:38:55ZengWileyIET Electrical Systems in Transportation2042-97382042-97462021-12-0111439140410.1049/els2.12019Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transitShimelis Atli Assefa0Asegid Belay Kebede1Demissu Legese2African Railway Center of Excellence Addis Ababa Institute of Technology Addis Ababa EthiopiaAfrican Railway Center of Excellence Addis Ababa Institute of Technology Addis Ababa EthiopiaResearch and Development Center Ethiopian Railway Corporation Addis Ababa EthiopiaAbstract Addis Ababa, the capital of Ethiopia, inaugurated the first electrified light rail transitsystem 4 years ago in September 2015, which makes it the first of its kind in sub‐Saharan and eastern African countries. The railway line has a total length of 34.25 km with 39 passenger stations and 19 traction substations. Currently, the performance of the traction power supply system degraded severely due to the existence of harmonics in the traction network. Realizing the above problem, the harmonic analysis of Addis Ababa light rail transit electrified power supply system is presented. The analysis is performed on one of the substations called ‘Lideta’ rectifier substation. To this end, mathematical modelling and analysis of the traction main components such as the catenary, the traction transformer, the traction rectifier and the load have been done. Finally, MATLAB simulation has been performed, and the result comes with a significant reduction in harmonic distortion, which is far below the 5% limits of IEEE standard.https://doi.org/10.1049/els2.12019 |
| spellingShingle | Shimelis Atli Assefa Asegid Belay Kebede Demissu Legese Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit IET Electrical Systems in Transportation |
| title | Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit |
| title_full | Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit |
| title_fullStr | Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit |
| title_full_unstemmed | Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit |
| title_short | Harmonic analysis of traction power supply system: case study of Addis Ababa light rail transit |
| title_sort | harmonic analysis of traction power supply system case study of addis ababa light rail transit |
| url | https://doi.org/10.1049/els2.12019 |
| work_keys_str_mv | AT shimelisatliassefa harmonicanalysisoftractionpowersupplysystemcasestudyofaddisababalightrailtransit AT asegidbelaykebede harmonicanalysisoftractionpowersupplysystemcasestudyofaddisababalightrailtransit AT demissulegese harmonicanalysisoftractionpowersupplysystemcasestudyofaddisababalightrailtransit |