Enhancing source currents and ensuring load voltage stability in railway electrification system via unified power quality conditions implementation.
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| Title: | Enhancing source currents and ensuring load voltage stability in railway electrification system via unified power quality conditions implementation. |
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| Authors: | Somsai, Kittaya1 kittaya.so@rmuti.ac.th, Srivichai, Jeerapong1 geerapong.sr@rmuti.ac.th, Thanyaphirak, Veera1 veera.th@rmuti.ac.th |
| Source: | International Journal of Electrical & Computer Engineering (2088-8708). Oct2025, Vol. 15 Issue 5, p4430-4444. 15p. |
| Subjects: | Railroad electrification, Power supply quality, MatLab (Computer software), Power quality disturbances, Harmonic suppression filters, Voltage regulators, Equilibrium, Transportation industry |
| Abstract: | In recent years, interest in electric railway system as a transportation solution for large urban areas has grown significantly. This increased attention stems from several key advantages, including environmental friendliness, high performance, reduced maintenance costs, and lower energy expenses. Railway electrification system rely on supplying power to trains through single-phase transformers. However, these transformers can cause issues such as current imbalances and harmonics at the system connection point, which may impact critical loads. Additionally, fluctuations in source voltage can influence the system's performance. This study examines the causes of unbalanced loading in railway electrification system and introduces an innovative unified power quality conditioner (UPQC) specifically designed for integration into low-voltage railway electrification system. The proposed UPQC aims to restore current balance, minimize harmonics, and enhance overall power quality. Furthermore, it addresses the mitigation of voltage sags in the power distribution network. The simulation results generated through MATLAB programming demonstrate the UPQC's effectiveness in enhancing system performance. The findings reveal that the UPQC reduces source current imbalance to less than 1.6% and total harmonic distortion (THD) to below 4.89% across all test scenarios. Additionally, the UPQC successfully maintains a load bus voltage of 25 kV during single-phase-to-ground and unbalanced three-phase-to-ground fault conditions. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Electrical & Computer Engineering (2088-8708) is the property of Institute of Advanced Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 189230494 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Enhancing source currents and ensuring load voltage stability in railway electrification system via unified power quality conditions implementation. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Somsai%2C+Kittaya%22">Somsai, Kittaya</searchLink><relatesTo>1</relatesTo><i> kittaya.so@rmuti.ac.th</i><br /><searchLink fieldCode="AR" term="%22Srivichai%2C+Jeerapong%22">Srivichai, Jeerapong</searchLink><relatesTo>1</relatesTo><i> geerapong.sr@rmuti.ac.th</i><br /><searchLink fieldCode="AR" term="%22Thanyaphirak%2C+Veera%22">Thanyaphirak, Veera</searchLink><relatesTo>1</relatesTo><i> veera.th@rmuti.ac.th</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Electrical+%26+Computer+Engineering+%282088-8708%29%22">International Journal of Electrical & Computer Engineering (2088-8708)</searchLink>. Oct2025, Vol. 15 Issue 5, p4430-4444. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Railroad+electrification%22">Railroad electrification</searchLink><br /><searchLink fieldCode="DE" term="%22Power+supply+quality%22">Power supply quality</searchLink><br /><searchLink fieldCode="DE" term="%22MatLab+%28Computer+software%29%22">MatLab (Computer software)</searchLink><br /><searchLink fieldCode="DE" term="%22Power+quality+disturbances%22">Power quality disturbances</searchLink><br /><searchLink fieldCode="DE" term="%22Harmonic+suppression+filters%22">Harmonic suppression filters</searchLink><br /><searchLink fieldCode="DE" term="%22Voltage+regulators%22">Voltage regulators</searchLink><br /><searchLink fieldCode="DE" term="%22Equilibrium%22">Equilibrium</searchLink><br /><searchLink fieldCode="DE" term="%22Transportation+industry%22">Transportation industry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: In recent years, interest in electric railway system as a transportation solution for large urban areas has grown significantly. This increased attention stems from several key advantages, including environmental friendliness, high performance, reduced maintenance costs, and lower energy expenses. Railway electrification system rely on supplying power to trains through single-phase transformers. However, these transformers can cause issues such as current imbalances and harmonics at the system connection point, which may impact critical loads. Additionally, fluctuations in source voltage can influence the system's performance. This study examines the causes of unbalanced loading in railway electrification system and introduces an innovative unified power quality conditioner (UPQC) specifically designed for integration into low-voltage railway electrification system. The proposed UPQC aims to restore current balance, minimize harmonics, and enhance overall power quality. Furthermore, it addresses the mitigation of voltage sags in the power distribution network. The simulation results generated through MATLAB programming demonstrate the UPQC's effectiveness in enhancing system performance. The findings reveal that the UPQC reduces source current imbalance to less than 1.6% and total harmonic distortion (THD) to below 4.89% across all test scenarios. Additionally, the UPQC successfully maintains a load bus voltage of 25 kV during single-phase-to-ground and unbalanced three-phase-to-ground fault conditions. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Electrical & Computer Engineering (2088-8708) is the property of Institute of Advanced Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.11591/ijece.v15i5.pp4430-4444 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 4430 Subjects: – SubjectFull: Railroad electrification Type: general – SubjectFull: Power supply quality Type: general – SubjectFull: MatLab (Computer software) Type: general – SubjectFull: Power quality disturbances Type: general – SubjectFull: Harmonic suppression filters Type: general – SubjectFull: Voltage regulators Type: general – SubjectFull: Equilibrium Type: general – SubjectFull: Transportation industry Type: general Titles: – TitleFull: Enhancing source currents and ensuring load voltage stability in railway electrification system via unified power quality conditions implementation. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Somsai, Kittaya – PersonEntity: Name: NameFull: Srivichai, Jeerapong – PersonEntity: Name: NameFull: Thanyaphirak, Veera IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20888708 Numbering: – Type: volume Value: 15 – Type: issue Value: 5 Titles: – TitleFull: International Journal of Electrical & Computer Engineering (2088-8708) Type: main |
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