TESTBED DESIGN AND DEVELOPMENT FOR MEDIUM VOLTAGE MW SCALE DC CIRCUIT BREAKER
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Authors
Carter, Brandon J.
Subjects
Testbed
medium voltage
high power
DC circuit breaker
hybrid electric propulsion
NASA
FLASH
medium voltage
high power
DC circuit breaker
hybrid electric propulsion
NASA
FLASH
Advisors
Oriti, Giovanna
Zhang, Di
Date of Issue
2025-03
Date
Publisher
Monterey, CA; Naval Postgraduate School
Language
Abstract
Navy propulsion and electrical power systems are evolving as improved technologies pave the way for increased capabilities with medium voltage direct current power distribution systems. These new systems require protective devices to sustain operations onboard ships at sea while providing quick reaction times to remedy inevitable electrical circuit mishaps. This thesis aims to determine what testbed components and parameters support accurate testing of a newly proposed design for a high-density, MW-scale, 2 kV solid-state circuit breaker. Circuit breaker operation, a comparison of the state of the art and a proposed solid-state circuit breaker, and the topology and test plans for the testbed are discussed in detail. A virtual testbed was created and tested through a power electronics simulation platform to determine the feasibility of using a laboratory hardware testbed to test the solid-state circuit breaker. Switching and thermal tests were run to understand the effects on components at different voltages and currents and to determine if the solid-state circuit breaker can provide lasting protection for future technologies. This study shows that the testbed components chosen yielded satisfactory results with enough capability margin to effectively mimic system conditions that the solid-state circuit breaker may face in actual operation.
Type
Thesis
Description
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NPS Report Number
Sponsors
NASA Cleveland, OH 44143
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Citation
Distribution Statement
Distribution Statement A. Approved for public release: Distribution is unlimited.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.