서브메뉴
검색
High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications- [electronic resource]
High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications- [electronic resource]
상세정보
- 자료유형
- 학위논문파일 국외
- 최종처리일시
- 20240214100434
- ISBN
- 9798380382953
- DDC
- 621.3
- 저자명
- Coday, Samantha.
- 서명/저자
- High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications - [electronic resource]
- 발행사항
- [S.l.]: : University of California, Berkeley., 2023
- 발행사항
- Ann Arbor : : ProQuest Dissertations & Theses,, 2023
- 형태사항
- 1 online resource(138 p.)
- 주기사항
- Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
- 주기사항
- Advisor: Pilawa-Podgurski, Robert.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2023.
- 사용제한주기
- This item must not be sold to any third party vendors.
- 초록/해제
- 요약Innovations within power electronics are necessary to enable future electric aircraft and space exploration. In these aerospace applications, power converters must be light-weight, efficient and reliable. Conventional, inductor-based, power electronics tend to be heavy, and have high switch stress making them difficult to implement in these applications. In this thesis, hybrid switched-capacitor converters are explored as they utilize energy-dense capacitors as the primary energy storage element, and also decrease the voltage stress of the switches. The basics of hybrid switched-capacitor converters are covered, with a focus on why these topologies are suitable for aerospace applications. Next, the losses of the capacitors, the main building block of these converters, are characterized and a model is proposed which allows for simple loss estimation. Then, the design and flight qualification of a hybrid switchedcapacitor converter is discussed, showcasing a converter with high efficiency, power density and reliable control. Moreover, the safe control of hybrid switched-capacitor converters during shutdown is described, with a model proposed which allows designers to understand the shutdown of the converter and trade-offs in different shutdown techniques. Hybrid switched-capacitor converters are motivated for their use in harsh space environments, where radiation effects make designing high performance converters challenging. Two different converters designed for space applications are then described, utilizing techniques such as partial power processing to minimize passive component mass. Overall, this thesis showcases the design of several high performance hybrid switched-capacitor converters, but also introduces models and comparison frameworks to allow future designers to better understand the design and operation of hybrid switched-capacitor converters in aerospace applications.
- 일반주제명
- Electrical engineering.
- 일반주제명
- Energy.
- 일반주제명
- Aerospace engineering.
- 기타저자
- University of California, Berkeley Electrical Engineering & Computer Sciences
- 기본자료저록
- Dissertations Abstracts International. 85-03B.
- 기본자료저록
- Dissertation Abstract International
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008240612s2023 us |||||||||||||||c||eng d■001000016932252
■00520240214100434
■006m o d
■007cr#unu||||||||
■020 ▼a9798380382953
■035 ▼a(MiAaPQ)AAI30490558
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a621.3
■1001 ▼aCoday, Samantha.
■24510▼aHigh Performance Hybrid Switched-Capacitor Converters for Aerospace Applications▼h[electronic resource]
■260 ▼a[S.l.]:▼bUniversity of California, Berkeley. ▼c2023
■260 1▼aAnn Arbor :▼bProQuest Dissertations & Theses, ▼c2023
■300 ▼a1 online resource(138 p.)
■500 ▼aSource: Dissertations Abstracts International, Volume: 85-03, Section: B.
■500 ▼aAdvisor: Pilawa-Podgurski, Robert.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2023.
■506 ▼aThis item must not be sold to any third party vendors.
■520 ▼aInnovations within power electronics are necessary to enable future electric aircraft and space exploration. In these aerospace applications, power converters must be light-weight, efficient and reliable. Conventional, inductor-based, power electronics tend to be heavy, and have high switch stress making them difficult to implement in these applications. In this thesis, hybrid switched-capacitor converters are explored as they utilize energy-dense capacitors as the primary energy storage element, and also decrease the voltage stress of the switches. The basics of hybrid switched-capacitor converters are covered, with a focus on why these topologies are suitable for aerospace applications. Next, the losses of the capacitors, the main building block of these converters, are characterized and a model is proposed which allows for simple loss estimation. Then, the design and flight qualification of a hybrid switchedcapacitor converter is discussed, showcasing a converter with high efficiency, power density and reliable control. Moreover, the safe control of hybrid switched-capacitor converters during shutdown is described, with a model proposed which allows designers to understand the shutdown of the converter and trade-offs in different shutdown techniques. Hybrid switched-capacitor converters are motivated for their use in harsh space environments, where radiation effects make designing high performance converters challenging. Two different converters designed for space applications are then described, utilizing techniques such as partial power processing to minimize passive component mass. Overall, this thesis showcases the design of several high performance hybrid switched-capacitor converters, but also introduces models and comparison frameworks to allow future designers to better understand the design and operation of hybrid switched-capacitor converters in aerospace applications.
■590 ▼aSchool code: 0028.
■650 4▼aElectrical engineering.
■650 4▼aEnergy.
■650 4▼aAerospace engineering.
■653 ▼aAerospace applications
■653 ▼aElectric aircraft
■653 ▼aMultilevel converters
■653 ▼aPower electronics
■653 ▼aEnergy-dense capacitors
■690 ▼a0544
■690 ▼a0791
■690 ▼a0538
■71020▼aUniversity of California, Berkeley▼bElectrical Engineering & Computer Sciences.
■7730 ▼tDissertations Abstracts International▼g85-03B.
■773 ▼tDissertation Abstract International
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16932252▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
■980 ▼a202402▼f2024
