High frequency impedance based fault location in distribution system with DGs
Distributed generations (DGs) in the distribution systems are connected into the buses using power electronic converters. During fault, it is challenging to provide a constant impedance model for DGs in the system frequency due to the variable converter control strategies. System frequency impedance...
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| Format: | Article |
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Institution of Engineering and Technology
2017
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| Online Access: | https://eprints.nottingham.ac.uk/47817/ |
| _version_ | 1848797636348346368 |
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| author | Jia, Ke Ren, Zhefeng Li, Lun Xuan, Zhenwen Thomas, David |
| author_facet | Jia, Ke Ren, Zhefeng Li, Lun Xuan, Zhenwen Thomas, David |
| author_sort | Jia, Ke |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Distributed generations (DGs) in the distribution systems are connected into the buses using power electronic converters. During fault, it is challenging to provide a constant impedance model for DGs in the system frequency due to the variable converter control strategies. System frequency impedance measurement based fault locations can be influenced by the converters’ fault behaviour. This study addresses this problem by proposing a wide-area high-frequency impedance comparison based fault location technique. The high-frequency impedance model of DG is provided. Based on the constant DG impedance model in high-frequency range, the faulted line sections can be distinguished by comparing the measured impedance differences without requiring the exact distribution system parameters. Simulation results show that the proposed wide-area transient measurements based fault location method can provide accurate faulted sections in the distribution systems with DGs regardless of the load and DG output variations, measurement noise, unbalanced loads and islanding operations. |
| first_indexed | 2025-11-14T20:07:01Z |
| format | Article |
| id | nottingham-47817 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:07:01Z |
| publishDate | 2017 |
| publisher | Institution of Engineering and Technology |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-478172020-05-04T18:54:22Z https://eprints.nottingham.ac.uk/47817/ High frequency impedance based fault location in distribution system with DGs Jia, Ke Ren, Zhefeng Li, Lun Xuan, Zhenwen Thomas, David Distributed generations (DGs) in the distribution systems are connected into the buses using power electronic converters. During fault, it is challenging to provide a constant impedance model for DGs in the system frequency due to the variable converter control strategies. System frequency impedance measurement based fault locations can be influenced by the converters’ fault behaviour. This study addresses this problem by proposing a wide-area high-frequency impedance comparison based fault location technique. The high-frequency impedance model of DG is provided. Based on the constant DG impedance model in high-frequency range, the faulted line sections can be distinguished by comparing the measured impedance differences without requiring the exact distribution system parameters. Simulation results show that the proposed wide-area transient measurements based fault location method can provide accurate faulted sections in the distribution systems with DGs regardless of the load and DG output variations, measurement noise, unbalanced loads and islanding operations. Institution of Engineering and Technology 2017-07-07 Article PeerReviewed Jia, Ke, Ren, Zhefeng, Li, Lun, Xuan, Zhenwen and Thomas, David (2017) High frequency impedance based fault location in distribution system with DGs. IET Generation, Transmission and Distribution . ISSN 1751-8695 Fault location ; High frequency impedance mode ; Transient measurement ; Distribution systems with DGs http://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0426 doi:10.1049/iet-gtd.2017.0426 doi:10.1049/iet-gtd.2017.0426 |
| spellingShingle | Fault location ; High frequency impedance mode ; Transient measurement ; Distribution systems with DGs Jia, Ke Ren, Zhefeng Li, Lun Xuan, Zhenwen Thomas, David High frequency impedance based fault location in distribution system with DGs |
| title | High frequency impedance based fault location in distribution system with DGs |
| title_full | High frequency impedance based fault location in distribution system with DGs |
| title_fullStr | High frequency impedance based fault location in distribution system with DGs |
| title_full_unstemmed | High frequency impedance based fault location in distribution system with DGs |
| title_short | High frequency impedance based fault location in distribution system with DGs |
| title_sort | high frequency impedance based fault location in distribution system with dgs |
| topic | Fault location ; High frequency impedance mode ; Transient measurement ; Distribution systems with DGs |
| url | https://eprints.nottingham.ac.uk/47817/ https://eprints.nottingham.ac.uk/47817/ https://eprints.nottingham.ac.uk/47817/ |