Results 211 to 220 of about 868 (261)

Design and Simulation of a Bidirectional DC Circuit Breaker

IECON 2020 The 46th Annual Conference of the IEEE Industrial Electronics Society, 2020
In recent years, DC microgrid has been developing continuously and its application range is more and more wide, which puts forward higher requirements for its protection. This paper proposes a bidirectional DC solid-state circuit breaker (SSCB), which allows power to flow bidirectionally and can be used in bidirectional DC microgrid protection ...
Yufei Tao 0002, Yufeng Wang 0005, Qinzhou Lin, Weilin Li   +3 more
openaire   +1 more source

DC vacuum circuit-breaker

2008 23rd International Symposium on Discharges and Electrical Insulation in Vacuum, 2008
The results of switching tests of a DC vacuum circuit-breaker designed for rated voltage 3.3 kV and rated current 3000A are presented. The circuit-breaker is intended for current interruption in the networks with fault currents up to 30 kA. To interrupt the direct current, the authors used a method of artificial current transition through zero in the ...
D. Alferov, A. Budovsky, D. Evsin, V. Ivanov, V. Sidorov, V. Yagnov   +5 more
openaire   +1 more source

A study on Low-Voltage DC circuit breakers

2013 IEEE International Symposium on Industrial Electronics, 2013
Recently, DC distribution systems become hot issues since DC type loads increase rapidly according to the expansion of IT equipment such as computers, servers, and digital devices; DC type loads will cover 50% for all electricity loads in 2020 which was mere 10% in 2000 [1,2].
Sungmin Lee, Hyosung-Kim
openaire   +1 more source

A New Z-Source DC Circuit Breaker

IEEE Transactions on Power Electronics, 2010
A novel type of circuit breaker is introduced for operation at medium-voltage dc with future naval ship power systems as a targeted application. The breaker utilizes a z-source LC circuit in order to automatically commutate a main-path SCR during a fault.
Keith A. Corzine, Robert W. Ashton
openaire   +1 more source

Modeling for series arc of DC circuit breaker

2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA), 2017
In electric distribution systems, a series arc occurs when a load and a power source are disconnected from a connector such as a circuit breaker, a socket–plug, or a coupler. In dc systems, the arc is not extinguished unless the arc current decreases to zero. Sustaining plasma arc current can cause huge fire disasters. To cope with the arc faults in dc
Yong-Jung Kim, Hyosung Kim
openaire   +1 more source

Study on DC Circuit Breaker

2014 Fifth International Conference on Intelligent Systems Design and Engineering Applications, 2014
Unlike ac systems, there is no zero crossing to extinguish the arc that occurs on breaker opening. With the rapid development of EHVDC, VSC-HVDC and DC distribution calling for the use of DC circuit breaker, more and more work has been done in recent years on this aspect.
openaire   +1 more source

Hybrid DC circuit breaker based on oscillation circuit

Journal of Power Electronics, 2020
With the rapid development of DC transmission technology, DC circuit breakers, the key equipment for DC fault handling, have become a research hotspot of scholars. This paper proposes a novel hybrid DC circuit breaker topology to improve the shortcomings of traditional hybrid DC circuit breakers.
Yiqi Liu, Tian Xia, Deqing Li
openaire   +1 more source

A hybrid circuit breaker for DC-application

2015 IEEE First International Conference on DC Microgrids (ICDCM), 2015
The development of large scale DC microgrid and high voltage direct current (HVDC) power grid requires a reliable, fast and low-loss circuit breaker. In spite of the advantages of DC gird such as low loss and no reactive power, DC grid has major disadvantages concerning control and switch actions.
Yang Bingjian, Gao Yang, Wei Xiaoguang, He Zhiyuan, Chen Longlong, Shan Yunhai   +5 more
openaire   +1 more source

Circuit breaker for DC micro grids

2015 IEEE First International Conference on DC Microgrids (ICDCM), 2015
In order to eliminate power conversion steps, future micro grids with renewable energy sources are being visualized as dc power systems. System components such as sources (solar panels, fuels cells, etc.) loads, and power conversion have been identified and are readily available.
openaire   +1 more source

Review of DC circuit breaker application

Electric Power Systems Research, 2022
Qunhai Huo, Jiawang Xiong, Ningyu Zhang, Xinming Guo, Lixin Wu, Tongzhen Wei   +5 more
openaire   +1 more source