Z-source circuit breakers in naval power systems
Name
1117714359-MIT.pdf
Size
10.42 MB
Format
Adobe PDF
Checksum (MD5)
36b99af276363931b6b385a847052b14
Author(s)
Taft, William T.(William Theodore)
Advisor(s)
James L. Kirtley.
Date Issued
2019
2019
Publisher
Massachusetts Institute of Technology
Abstract
New power system components and control systems are required to facilitate the U.S. Navy's move to medium voltage direct current power (MVDC) systems on future vessels. Integrating the z-source circuit breaker into a "typical" naval MVDC power system requires understanding system dynamics that may cause the circuit breaker to inadvertently energize a circuit through regenerative turn-on of the thyristor. An electrically-scaled model and a simulation model are used to characterize voltage transients that could lead to this false triggering. The results of this experiment show that these transients are within the specifications of commercially available components. Limitations in the circuit breaker's protective capabilities during turn-on transients are identified and discussed. Potential topology modifications, control schemes, and power system arrangements that provide protection across the operating range are proposed for further investigation.
Description
Thesis: Nav. E., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2019
Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 97-100).
Subjects
Mechanical Engineering.
Electrical Engineering and Computer Science.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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