A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations
Nowadays, more distributed generations (DGs) are connected to a radial distribution network, so conventional overcurrent relays cannot operate correctly when a fault occurs in the network. This study proposes a method to determine the fault direction in a three-phase distribution network integrated...
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| Format: | Article |
| Language: | English |
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Taiwan Association of Engineering and Technology Innovation
2021-12-01
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| Series: | Proceedings of Engineering and Technology Innovation |
| Subjects: | |
| Online Access: | https://ojs.imeti.org/index.php/PETI/article/view/8420 |
| _version_ | 1797808531918815232 |
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| author | Ngo Minh Khoa Tran Xuan Khoa |
| author_facet | Ngo Minh Khoa Tran Xuan Khoa |
| author_sort | Ngo Minh Khoa |
| collection | DOAJ |
| description |
Nowadays, more distributed generations (DGs) are connected to a radial distribution network, so conventional overcurrent relays cannot operate correctly when a fault occurs in the network. This study proposes a method to determine the fault direction in a three-phase distribution network integrated with DGs. The obtained pre-fault and fault currents are utilized to extract their phasors by the fast Fourier transform, and the phase angle difference between the positive-sequence components of the pre-fault and fault currents is used. Moreover, the method only uses the local current measurement to calculate and identify the phase angle change of the fault current without using the voltage measurement. Matlab/Simulink software is used to simulate the three-phase distribution network integrated with DGs. The faults with different resistances are assumed to occur at backward and forward fault locations. The simulation results show that the proposed method correctly determines the fault direction.
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| first_indexed | 2024-03-13T06:38:56Z |
| format | Article |
| id | doaj.art-3cb3130022334261918dbe715757461e |
| institution | Directory Open Access Journal |
| issn | 2413-7146 2518-833X |
| language | English |
| last_indexed | 2024-03-13T06:38:56Z |
| publishDate | 2021-12-01 |
| publisher | Taiwan Association of Engineering and Technology Innovation |
| record_format | Article |
| series | Proceedings of Engineering and Technology Innovation |
| spelling | doaj.art-3cb3130022334261918dbe715757461e2023-06-08T18:29:04ZengTaiwan Association of Engineering and Technology InnovationProceedings of Engineering and Technology Innovation2413-71462518-833X2021-12-012010.46604/peti.2021.8420A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed GenerationsNgo Minh Khoa0Tran Xuan Khoa1Faculty of Engineering and Technology, Quy Nhon University, Binh Dinh, VietnamFaculty of Engineering and Technology, Quy Nhon University, Binh Dinh, Vietnam Nowadays, more distributed generations (DGs) are connected to a radial distribution network, so conventional overcurrent relays cannot operate correctly when a fault occurs in the network. This study proposes a method to determine the fault direction in a three-phase distribution network integrated with DGs. The obtained pre-fault and fault currents are utilized to extract their phasors by the fast Fourier transform, and the phase angle difference between the positive-sequence components of the pre-fault and fault currents is used. Moreover, the method only uses the local current measurement to calculate and identify the phase angle change of the fault current without using the voltage measurement. Matlab/Simulink software is used to simulate the three-phase distribution network integrated with DGs. The faults with different resistances are assumed to occur at backward and forward fault locations. The simulation results show that the proposed method correctly determines the fault direction. https://ojs.imeti.org/index.php/PETI/article/view/8420directional protection relaydistributed generationfault directionpositive-sequence currentradial distribution network |
| spellingShingle | Ngo Minh Khoa Tran Xuan Khoa A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations Proceedings of Engineering and Technology Innovation directional protection relay distributed generation fault direction positive-sequence current radial distribution network |
| title | A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations |
| title_full | A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations |
| title_fullStr | A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations |
| title_full_unstemmed | A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations |
| title_short | A Method Based on Only Currents for Determining Fault Direction in Radial Distribution Networks Integrated with Distributed Generations |
| title_sort | method based on only currents for determining fault direction in radial distribution networks integrated with distributed generations |
| topic | directional protection relay distributed generation fault direction positive-sequence current radial distribution network |
| url | https://ojs.imeti.org/index.php/PETI/article/view/8420 |
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