An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications
Higher-voltage-standard and higher-power-rating aerospace power systems are being investigated intensively in the aerospace industry to address challenges in terms of improving emissions, fuel economy, and also cost. Multilevel converter topologies become attractive because of their higher efficienc...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-03-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/13/5/1292 |
| _version_ | 1797999451413938176 |
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| author | Yifan Zhang Chushan Li David Xu Wuhua Li Jian Zhang Hao Ma Xiangning He |
| author_facet | Yifan Zhang Chushan Li David Xu Wuhua Li Jian Zhang Hao Ma Xiangning He |
| author_sort | Yifan Zhang |
| collection | DOAJ |
| description | Higher-voltage-standard and higher-power-rating aerospace power systems are being investigated intensively in the aerospace industry to address challenges in terms of improving emissions, fuel economy, and also cost. Multilevel converter topologies become attractive because of their higher efficiency under high-voltage and high-switching-frequency conditions. In this paper, an asymmetrical-voltage-level back-to-back multilevel converter is proposed, which consists of a five-level (5L) rectifier stage and a three-level (3L) inverter stage. Based on the comparison, such an asymmetrical back-to-back structure can achieve high efficiency and minimize the converter weight on both rectifier and inverter sides. A compact triple-surface-mounted heatsink structure is designed to realize high density and manufacturable thermal management. This topology and structure are evaluated with a full-rating prototype. According to the evaluation, the achieved power density is 2.61 kVA/kg, which is 30% higher than that of traditional solutions. The efficiency at the rated power of the back-to-back system is 95.8%. |
| first_indexed | 2024-04-11T11:04:50Z |
| format | Article |
| id | doaj.art-1201b6ab64394d8292bba4df2cd30c7e |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T11:04:50Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-1201b6ab64394d8292bba4df2cd30c7e2022-12-22T04:28:24ZengMDPI AGEnergies1996-10732020-03-01135129210.3390/en13051292en13051292An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive ApplicationsYifan Zhang0Chushan Li1David Xu2Wuhua Li3Jian Zhang4Hao Ma5Xiangning He6College of Electrical Engineering, Zhejiang University, Hangzhou 310081, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310081, ChinaCollege of Electrical and Computer Engineering, Ryerson University, Toronto, ON M5B2K3, CanadaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310081, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310081, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310081, ChinaCollege of Electrical Engineering, Zhejiang University, Hangzhou 310081, ChinaHigher-voltage-standard and higher-power-rating aerospace power systems are being investigated intensively in the aerospace industry to address challenges in terms of improving emissions, fuel economy, and also cost. Multilevel converter topologies become attractive because of their higher efficiency under high-voltage and high-switching-frequency conditions. In this paper, an asymmetrical-voltage-level back-to-back multilevel converter is proposed, which consists of a five-level (5L) rectifier stage and a three-level (3L) inverter stage. Based on the comparison, such an asymmetrical back-to-back structure can achieve high efficiency and minimize the converter weight on both rectifier and inverter sides. A compact triple-surface-mounted heatsink structure is designed to realize high density and manufacturable thermal management. This topology and structure are evaluated with a full-rating prototype. According to the evaluation, the achieved power density is 2.61 kVA/kg, which is 30% higher than that of traditional solutions. The efficiency at the rated power of the back-to-back system is 95.8%.https://www.mdpi.com/1996-1073/13/5/1292more electric aircraft (mea)multilevel converterhigh power density |
| spellingShingle | Yifan Zhang Chushan Li David Xu Wuhua Li Jian Zhang Hao Ma Xiangning He An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications Energies more electric aircraft (mea) multilevel converter high power density |
| title | An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications |
| title_full | An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications |
| title_fullStr | An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications |
| title_full_unstemmed | An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications |
| title_short | An Extremely High Power Density Asymmetrical Back-to-Back Converter for Aerospace Motor Drive Applications |
| title_sort | extremely high power density asymmetrical back to back converter for aerospace motor drive applications |
| topic | more electric aircraft (mea) multilevel converter high power density |
| url | https://www.mdpi.com/1996-1073/13/5/1292 |
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