A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System
With the development of space exploration, high-power and high-voltage power systems are essential for future spacecraft applications. Because of the effects of space radiation such as single event burnout (SEB), the rated voltage of power devices in converters for a spacecraft power system is limit...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-01-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/1/556 |
| _version_ | 1797625828706615296 |
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| author | Haijin Li Yu Gu Xiaofeng Zhang Zhigang Liu Longlong Zhang Yi Zeng |
| author_facet | Haijin Li Yu Gu Xiaofeng Zhang Zhigang Liu Longlong Zhang Yi Zeng |
| author_sort | Haijin Li |
| collection | DOAJ |
| description | With the development of space exploration, high-power and high-voltage power systems are essential for future spacecraft applications. Because of the effects of space radiation such as single event burnout (SEB), the rated voltage of power devices in converters for a spacecraft power system is limited to a level much lower than that for traditional ground applications. Thus, multi-level DC/DC converters are good choices for high-voltage applications in spacecraft. In this paper, a fault-tolerant strategy is proposed for a three-level flying capacitor DC/DC converter to increase the reliability with minimal cost. There is no extra hardware needed for the proposed strategy; the fault tolerance of the converter is only achieved by changing the software control strategy. A stage analysis of the proposed strategy is provided in detail for different fault locations and ratios between the input and output voltage. Finally, a simulation model and prototype are built to verify the effectiveness of the proposed strategy. |
| first_indexed | 2024-03-11T10:02:00Z |
| format | Article |
| id | doaj.art-718b49c9858d4fc59251395c48537fda |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T10:02:00Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-718b49c9858d4fc59251395c48537fda2023-11-16T15:20:42ZengMDPI AGEnergies1996-10732023-01-0116155610.3390/en16010556A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power SystemHaijin Li0Yu Gu1Xiaofeng Zhang2Zhigang Liu3Longlong Zhang4Yi Zeng5Beijing Institute of Spacecraft System Engineering, Beijing 100094, ChinaSchool of Mechanical Engineering and Automation, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, ChinaBeijing Institute of Spacecraft System Engineering, Beijing 100094, ChinaBeijing Institute of Spacecraft System Engineering, Beijing 100094, ChinaDepartment of Electrical Engineering, China University of Petroleum (East China), Qingdao 266580, ChinaBeijing Institute of Spacecraft System Engineering, Beijing 100094, ChinaWith the development of space exploration, high-power and high-voltage power systems are essential for future spacecraft applications. Because of the effects of space radiation such as single event burnout (SEB), the rated voltage of power devices in converters for a spacecraft power system is limited to a level much lower than that for traditional ground applications. Thus, multi-level DC/DC converters are good choices for high-voltage applications in spacecraft. In this paper, a fault-tolerant strategy is proposed for a three-level flying capacitor DC/DC converter to increase the reliability with minimal cost. There is no extra hardware needed for the proposed strategy; the fault tolerance of the converter is only achieved by changing the software control strategy. A stage analysis of the proposed strategy is provided in detail for different fault locations and ratios between the input and output voltage. Finally, a simulation model and prototype are built to verify the effectiveness of the proposed strategy.https://www.mdpi.com/1996-1073/16/1/556fault-tolerant strategyhigh voltagethree levelflying capacitorDC/DC converterspacecraft power system |
| spellingShingle | Haijin Li Yu Gu Xiaofeng Zhang Zhigang Liu Longlong Zhang Yi Zeng A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System Energies fault-tolerant strategy high voltage three level flying capacitor DC/DC converter spacecraft power system |
| title | A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System |
| title_full | A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System |
| title_fullStr | A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System |
| title_full_unstemmed | A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System |
| title_short | A Fault-Tolerant Strategy for Three-Level Flying-Capacitor DC/DC Converter in Spacecraft Power System |
| title_sort | fault tolerant strategy for three level flying capacitor dc dc converter in spacecraft power system |
| topic | fault-tolerant strategy high voltage three level flying capacitor DC/DC converter spacecraft power system |
| url | https://www.mdpi.com/1996-1073/16/1/556 |
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