Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power
In the DC distribution system, to step down the DC voltage level from the AC grid voltage, the conventional topologies require multiple power conversion stages and bulky line-frequency transformers, which degrade their power density and cost-effectiveness. In addition, the conventional topologies su...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/13/7/1704 |
| _version_ | 1827719375283552256 |
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| author | Jun-Young Lee Kyung-Wook Heo Kyu-Tae Kim Jee-Hoon Jung |
| author_facet | Jun-Young Lee Kyung-Wook Heo Kyu-Tae Kim Jee-Hoon Jung |
| author_sort | Jun-Young Lee |
| collection | DOAJ |
| description | In the DC distribution system, to step down the DC voltage level from the AC grid voltage, the conventional topologies require multiple power conversion stages and bulky line-frequency transformers, which degrade their power density and cost-effectiveness. In addition, the conventional topologies suffer from a shoot-through problem resulting in their low system reliability. In this paper, to overcome the above issues, systematic design approaches of a three-phase buck rectifier with an uninterruptible power supply (UPS) and a protection algorithm are proposed to obtain the high reliability of the DC distribution system, which can deal with fault conditions and can regulate the output voltage level. It only requires a single stage of the three-phase buck rectifier. Also, a thyristor switch is added without any commutation circuits to cut off the output from the fault circuit. The shoot-through faults do not occur in the buck rectifier, leading to high reliability. A dual-active-bridge (DAB) DC-DC converter is applied as the UPS to supply the electric power from the battery when the buck rectifier is shut down under the fault conditions. Finally, the protection algorithm is proposed to detect the fault conditions and to regulate the output voltage level. |
| first_indexed | 2024-03-10T20:41:17Z |
| format | Article |
| id | doaj.art-b80d552e32274562b11035ef582b6209 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T20:41:17Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b80d552e32274562b11035ef582b62092023-11-19T20:39:47ZengMDPI AGEnergies1996-10732020-04-01137170410.3390/en13071704Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC PowerJun-Young Lee0Kyung-Wook Heo1Kyu-Tae Kim2Jee-Hoon Jung3Department of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, KoreaDepartment of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, KoreaElectricity Technology Group, Samsung Electronics, Suwon 443-742, KoreaDepartment of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, KoreaIn the DC distribution system, to step down the DC voltage level from the AC grid voltage, the conventional topologies require multiple power conversion stages and bulky line-frequency transformers, which degrade their power density and cost-effectiveness. In addition, the conventional topologies suffer from a shoot-through problem resulting in their low system reliability. In this paper, to overcome the above issues, systematic design approaches of a three-phase buck rectifier with an uninterruptible power supply (UPS) and a protection algorithm are proposed to obtain the high reliability of the DC distribution system, which can deal with fault conditions and can regulate the output voltage level. It only requires a single stage of the three-phase buck rectifier. Also, a thyristor switch is added without any commutation circuits to cut off the output from the fault circuit. The shoot-through faults do not occur in the buck rectifier, leading to high reliability. A dual-active-bridge (DAB) DC-DC converter is applied as the UPS to supply the electric power from the battery when the buck rectifier is shut down under the fault conditions. Finally, the protection algorithm is proposed to detect the fault conditions and to regulate the output voltage level.https://www.mdpi.com/1996-1073/13/7/1704three-phase buck rectifierDC distribution systemdual-active-bridge DC-DC converterUPS |
| spellingShingle | Jun-Young Lee Kyung-Wook Heo Kyu-Tae Kim Jee-Hoon Jung Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power Energies three-phase buck rectifier DC distribution system dual-active-bridge DC-DC converter UPS |
| title | Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power |
| title_full | Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power |
| title_fullStr | Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power |
| title_full_unstemmed | Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power |
| title_short | Analysis and Design of Three-Phase Buck Rectifier Employing UPS to Supply High Reliable DC Power |
| title_sort | analysis and design of three phase buck rectifier employing ups to supply high reliable dc power |
| topic | three-phase buck rectifier DC distribution system dual-active-bridge DC-DC converter UPS |
| url | https://www.mdpi.com/1996-1073/13/7/1704 |
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