Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids
Since the voltages and currents in dc grids do not have a natural zero-crossing, the protection of these grids is more challenging than the protection of conventional ac grids. Literature presents several unit and non-unit protection schemes that rely on communication, or knowledge about the system’...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/12/3167 |
| _version_ | 1797564870852345856 |
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| author | Nils H. van der Blij Pavel Purgat Thiago B. Soeiro Laura M. Ramirez-Elizondo Matthijs T. J. Spaan Pavol Bauer |
| author_facet | Nils H. van der Blij Pavel Purgat Thiago B. Soeiro Laura M. Ramirez-Elizondo Matthijs T. J. Spaan Pavol Bauer |
| author_sort | Nils H. van der Blij |
| collection | DOAJ |
| description | Since the voltages and currents in dc grids do not have a natural zero-crossing, the protection of these grids is more challenging than the protection of conventional ac grids. Literature presents several unit and non-unit protection schemes that rely on communication, or knowledge about the system’s topology and parameters in order to achieve selective protection in these grids. However, communication complicates fast fault detection and interruption, and a system’s parameters are subject to uncertainty and change. This paper demonstrates that, in low voltage dc grids, faults propagate fast through the grid and interrupted inductive currents commutate to non-faulted sections of the grid, which both can cause circuit breakers in non-faulted sections to trip. A decentralized plug-and-play protection scheme is proposed that ensures selectivity via an augmented solid-state circuit breaker topology and by utilizing the proposed time-current characteristic. It is experimentally shown that the proposed scheme provides secure and selective fault interruption for radial and meshed low voltage dc grids under various conditions. |
| first_indexed | 2024-03-10T19:03:00Z |
| format | Article |
| id | doaj.art-324933912817420d89594f0854bf4de1 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T19:03:00Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-324933912817420d89594f0854bf4de12023-11-20T04:15:44ZengMDPI AGEnergies1996-10732020-06-011312316710.3390/en13123167Decentralized Plug-and-Play Protection Scheme for Low Voltage DC GridsNils H. van der Blij0Pavel Purgat1Thiago B. Soeiro2Laura M. Ramirez-Elizondo3Matthijs T. J. Spaan4Pavol Bauer5Department of Electrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsDepartment of Electrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsDepartment of Electrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsDepartment of Electrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsDepartment of Software Technology, Delft University of Technology, Van Mourik Broekmanweg 6, 2628 XE Delft, The NetherlandsDepartment of Electrical Sustainable Energy, Delft University of Technology, Mekelweg 4, 2628 CD Delft, The NetherlandsSince the voltages and currents in dc grids do not have a natural zero-crossing, the protection of these grids is more challenging than the protection of conventional ac grids. Literature presents several unit and non-unit protection schemes that rely on communication, or knowledge about the system’s topology and parameters in order to achieve selective protection in these grids. However, communication complicates fast fault detection and interruption, and a system’s parameters are subject to uncertainty and change. This paper demonstrates that, in low voltage dc grids, faults propagate fast through the grid and interrupted inductive currents commutate to non-faulted sections of the grid, which both can cause circuit breakers in non-faulted sections to trip. A decentralized plug-and-play protection scheme is proposed that ensures selectivity via an augmented solid-state circuit breaker topology and by utilizing the proposed time-current characteristic. It is experimentally shown that the proposed scheme provides secure and selective fault interruption for radial and meshed low voltage dc grids under various conditions.https://www.mdpi.com/1996-1073/13/12/3167decentralized protection schemefault analysislow voltage direct current gridsplug-and-play systemssolid-state circuit breakers |
| spellingShingle | Nils H. van der Blij Pavel Purgat Thiago B. Soeiro Laura M. Ramirez-Elizondo Matthijs T. J. Spaan Pavol Bauer Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids Energies decentralized protection scheme fault analysis low voltage direct current grids plug-and-play systems solid-state circuit breakers |
| title | Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids |
| title_full | Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids |
| title_fullStr | Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids |
| title_full_unstemmed | Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids |
| title_short | Decentralized Plug-and-Play Protection Scheme for Low Voltage DC Grids |
| title_sort | decentralized plug and play protection scheme for low voltage dc grids |
| topic | decentralized protection scheme fault analysis low voltage direct current grids plug-and-play systems solid-state circuit breakers |
| url | https://www.mdpi.com/1996-1073/13/12/3167 |
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