Hybrid DC Circuit Breaker Feasibility Study

Recently, a growing number of dc systems exist based on the development of electrical energy consumption. For low-voltage dc grids, switching devices are needed that have to meet technically sophisticated requirements. These devices have to handle fault currents of several hundred amperes and system...

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Bibliographic Details
Published in:IEEE transactions on components, packaging, and manufacturing technology (2011) packaging, and manufacturing technology (2011), 2017-03, Vol.7 (3), p.354-362
Main Authors: Bosche, Dirk, Wilkening, Ernst-Dieter, Kopf, Hendrik, Kurrat, Michael
Format: Article
Language:English
Subjects:
Circuit breakers
Contacts
Direct current
Electric contacts
Electronic circuits
Electronic components
Energy consumption
Feasibility studies
high-voltage
high-voltage direct current (HVDC)
Hybrid circuits
hybrid dc circuit breaker
Insulated gate bipolar transistors
low-voltage dc switchgear
optimization
self-supplying
Semiconductors
Switches
Switching
Switching circuits
Voltage control
Weight reduction
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Summary:Recently, a growing number of dc systems exist based on the development of electrical energy consumption. For low-voltage dc grids, switching devices are needed that have to meet technically sophisticated requirements. These devices have to handle fault currents of several hundred amperes and system voltages up to 1000 V. A typical dc circuit breaker has to provide low on-state losses, light weight, and small volume. On the way toward fulfilling these requirements, hybrid circuit breakers can represent the optimal solution. A hybrid dc circuit breaker combines the advantages of mechanical contacts and semiconductors. In this paper, such a device has been designed and constructed using a commercial switch and electronic components in the laboratory. The breaking performance of this experimental prototype has been investigated, and thus the interruption of the nominal and failure currents in the case of different time constants can be identified. The investigated hybrid switching device has been optimized in order to maximize the switching capacity and the protection of the semiconductors.
ISSN:2156-3950
2156-3985
DOI:10.1109/TCPMT.2016.2613579