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Design considerations of series type hybrid circuit breaker (S‐HCB)

Journal Article · · IET Power Electronics
DOI:https://doi.org/10.1049/pel2.12645· OSTI ID:2282897
 [1];  [1];  [1];  [2];  [1];  [1]
  1. Illinois Institute of Technology Electrical and Computer Engineering Chicago Illinois USA
  2. School of Mechatronic Systems Engineering Simon Fraser University Burnaby British Columbia Canada

Abstract

The series‐type direct current (DC) hybrid circuit breaker (S‐HCB) concept was previously reported to offer better performance than solid‐state circuit breakers (SSCB) and hybrid circuit breakers (HCB). S‐HCB offers low conduction power loss like an HCB and ‐scale interruption time, which is even faster than an SSCB. It uses a pulse transformer to isolate the lower‐voltage high‐inductance power electronic circuit from the high‐voltage, low‐inductance main power loop. This paper provides analysis of the impact of the S‐HCB circuit components on the overall system performance and a scalable S‐HCB design guide for different DC system voltage and current ratings. In addition, system energy flow analysis is performed in the time domain to provide an understanding of how energy is delivered, dissipated, and released throughout the entire fault interruption process. The S‐HCB prototype was experimentally tested at 3 kV/30 A and 6 kV/150A with the results showing the interruption of the low fault current of 30 A and the high fault current of 150 A within 8  and maintaining the fault current at a near zero value for 300 to enable an arcless opening of a series mechanical switch. The key design challenges of S‐HCB at high voltage and high current ratings were discussed and possible solutions to mitigate those challenges were introduced.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AR0001463
OSTI ID:
2282897
Alternate ID(s):
OSTI ID: 2311895
Journal Information:
IET Power Electronics, Journal Name: IET Power Electronics Journal Issue: 3 Vol. 17; ISSN 1755-4535
Publisher:
Institution of Engineering and Technology (IET)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

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