Item – Theses Canada

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OCLC number
1032921993
Link(s) to full text
LAC copy
LAC copy
Author
Shang, Yang.
Title
Feasibility and Simulation Study of DC Hybrid Circuit Breakers.
Degree
MAST -- University of Toronto, 2014
Publisher
Toronto : University of Toronto, 2014.
Description
1 online resource
Notes
Includes bibliographical references.
Abstract
Interruption of DC is more challenging than that of AC because of the absence of DC zero-crossings. This thesis proposes an alternative counter-voltage (ACV) DC hybrid circuit breaker (DC-HCB). This DC-HCB can interrupt the DC up to 5 kA with the source voltage of up to 1 kV and it can meet the general requirements i.e., interrupting the DC within 5ms, and limiting over-voltages due to the CB operation. The existing/investigated DC circuit breakers, i.e., active mode DC-HCB and the traditional counter-voltage (TCV) DC-HCB are also investigated and compared with the proposed DC-HCB. The investigations are based on the time-domain simulation studies in the PSCAD/EMTDC. The studies show that the ACV DC-HCB is the preferred option to both the existing DC-HCBs. The main features of the proposed ACV DC-HCB include lower capacitance in the commutation path and the need for a smaller dielectric strength for the primary-path circuit breaker.
Other link(s)
hdl.handle.net
tspace.library.utoronto.ca
Subject
Hybird Circuit Breakers.
Electric Arc Model.
0544.