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High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications./
Author:	Coday, Samantha.
Description:	1 online resource (138 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:	Dissertations Abstracts International85-03B.
Subject:	Electrical engineering. -
Online resource:	click for full text (PQDT)
ISBN:	9798380382953

High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications.
Coday, Samantha.

High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications. - 1 online resource (138 pages)

Source: Dissertations Abstracts International, Volume: 85-03, Section: B.

Thesis (Ph.D.)--University of California, Berkeley, 2023.

Includes bibliographical references

Innovations 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.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380382953Subjects--Topical Terms:

596380
Electrical engineering.
Subjects--Index Terms:

Aerospace applicationsIndex Terms--Genre/Form:

554714
Electronic books.

High Performance Hybrid Switched-Capacitor Converters for Aerospace Applications.
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