Multi‐state unified calculation model of rail potential and stray current in DC railway systems
Abstract In order to calculate the dynamic distribution of rail potential and stray current accurately, a multi‐state unified calculation model of rail potential and stray current is proposed, and the characteristics of different protection devices and reflux system in multi‐state DC railway systems...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Hindawi-IET
2023-03-01
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| Series: | IET Electrical Systems in Transportation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/els2.12070 |
| _version_ | 1797416275148800000 |
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| author | Guifu Du Zixuan Zheng Qiaoyue Li Fengchuan Xu Tianye Zhang Dongliang Zhang Xiaoping Zhang Weiguo Huang |
| author_facet | Guifu Du Zixuan Zheng Qiaoyue Li Fengchuan Xu Tianye Zhang Dongliang Zhang Xiaoping Zhang Weiguo Huang |
| author_sort | Guifu Du |
| collection | DOAJ |
| description | Abstract In order to calculate the dynamic distribution of rail potential and stray current accurately, a multi‐state unified calculation model of rail potential and stray current is proposed, and the characteristics of different protection devices and reflux system in multi‐state DC railway systems are analysed. In the proposed model, the multi‐state characteristics of the traction substation, train, protection devices and reflux system are uniformly simulated by unified node models. The mixed simulation parameters of the catenary and reflux system are unified to lumped parameter networks, and the multi‐node voltage equations are established based on the simulation model. Then, the power flow of DC railway systems is calculated using an iterative solution, and the dynamic distribution of rail potential and stray current are solved by differential equations. The multi‐state unified calculation model is built and the distribution of rail potential and stray current in different conditions are simulated based on the parameters of Wuxi Subway Line 2. In order to verify the multi‐state unified calculation model proposed, field tests and simulations are carried out. Results show that the multi‐state unified calculation model can unify the complex states of DC railway systems and calculate the distribution of rail potential and stray current accurately. |
| first_indexed | 2024-03-09T06:02:07Z |
| format | Article |
| id | doaj.art-3c37c57dadde45f9a3d77aa7f8fce7b0 |
| institution | Directory Open Access Journal |
| issn | 2042-9738 2042-9746 |
| language | English |
| last_indexed | 2024-03-09T06:02:07Z |
| publishDate | 2023-03-01 |
| publisher | Hindawi-IET |
| record_format | Article |
| series | IET Electrical Systems in Transportation |
| spelling | doaj.art-3c37c57dadde45f9a3d77aa7f8fce7b02023-12-03T12:08:15ZengHindawi-IETIET Electrical Systems in Transportation2042-97382042-97462023-03-01131n/an/a10.1049/els2.12070Multi‐state unified calculation model of rail potential and stray current in DC railway systemsGuifu Du0Zixuan Zheng1Qiaoyue Li2Fengchuan Xu3Tianye Zhang4Dongliang Zhang5Xiaoping Zhang6Weiguo Huang7National Rail Transportation Electrification and Automation Engineering Technology Research Centre Chengdu ChinaSchool of Rail Transportation Soochow University Suzhou ChinaSchool of Optical and Electronic Information Suzhou City University Suzhou ChinaSchool of Optical and Electronic Information Suzhou City University Suzhou ChinaSchool of Rail Transportation Soochow University Suzhou ChinaSchool of Electrical Engineering China University of Mining and Technology Xuzhou ChinaApplied Technology College of Soochow University Suzhou ChinaSchool of Rail Transportation Soochow University Suzhou ChinaAbstract In order to calculate the dynamic distribution of rail potential and stray current accurately, a multi‐state unified calculation model of rail potential and stray current is proposed, and the characteristics of different protection devices and reflux system in multi‐state DC railway systems are analysed. In the proposed model, the multi‐state characteristics of the traction substation, train, protection devices and reflux system are uniformly simulated by unified node models. The mixed simulation parameters of the catenary and reflux system are unified to lumped parameter networks, and the multi‐node voltage equations are established based on the simulation model. Then, the power flow of DC railway systems is calculated using an iterative solution, and the dynamic distribution of rail potential and stray current are solved by differential equations. The multi‐state unified calculation model is built and the distribution of rail potential and stray current in different conditions are simulated based on the parameters of Wuxi Subway Line 2. In order to verify the multi‐state unified calculation model proposed, field tests and simulations are carried out. Results show that the multi‐state unified calculation model can unify the complex states of DC railway systems and calculate the distribution of rail potential and stray current accurately.https://doi.org/10.1049/els2.12070energy management systemsfault currentspower system protectionrailway electrificationrailway safetyvoltage control |
| spellingShingle | Guifu Du Zixuan Zheng Qiaoyue Li Fengchuan Xu Tianye Zhang Dongliang Zhang Xiaoping Zhang Weiguo Huang Multi‐state unified calculation model of rail potential and stray current in DC railway systems IET Electrical Systems in Transportation energy management systems fault currents power system protection railway electrification railway safety voltage control |
| title | Multi‐state unified calculation model of rail potential and stray current in DC railway systems |
| title_full | Multi‐state unified calculation model of rail potential and stray current in DC railway systems |
| title_fullStr | Multi‐state unified calculation model of rail potential and stray current in DC railway systems |
| title_full_unstemmed | Multi‐state unified calculation model of rail potential and stray current in DC railway systems |
| title_short | Multi‐state unified calculation model of rail potential and stray current in DC railway systems |
| title_sort | multi state unified calculation model of rail potential and stray current in dc railway systems |
| topic | energy management systems fault currents power system protection railway electrification railway safety voltage control |
| url | https://doi.org/10.1049/els2.12070 |
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