Results 261 to 270 of about 21,788 (303)

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.
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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
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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
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A Г-Source Circuit Breaker for DC Microgrid Protection

IEEE Transactions on Industrial Electronics, 2021
In this article, a novel Г-source circuit breaker (CB) that can offer automatic fault isolation with no reflected fault current in the feeding source is proposed for the protection of dc microgrids. Compared with conventional Z-source CBs, this topology utilizes fewer elements through the magnetic coupling, thus allowing a considerably reduced volume ...
Zhongzheng Zhou, Jianguo Jiang, Shu Ye, Cong Liu 0022, Dan Zhang 0015   +4 more
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DC Circuit Breakers: A Technology Development Status Survey

IEEE Transactions on Smart Grid, 2022
DC circuit breakers (DCCBs) play a significant role in obtaining the reliability and stability of DC power systems. Selective and fast isolating of faults minimizes the power supply outages to end electricity users and protects the power converters implemented in the DC system.
Sheng Zheng 0001, Reza Kheirollahi, Jiuping Pan, Lingxiao Xue, Jun Wang 0146, Fei Lu 0001   +5 more
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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
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T-Type Modular Dc Circuit Breaker (T-Breaker) for Future Dc Networks

2021 IEEE Applied Power Electronics Conference and Exposition (APEC), 2021
This paper introduces the principle, operation and topology family of the novel T-type Modular Dc Circuit Breaker (T-Breaker) system for future dc networks. The T-Breaker system has a modular structure, locally integrated energy storage, high tolerance to control signal mismatch during the fast network transients, and capability to assist power flow ...
Yue Zhang, Faisal Alsaif, Xiao Li, Risha Na, Jin Wang   +4 more
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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
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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.
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Arc extinguishment for DC circuit breaker by PPTC device

2017 IEEE International Conference on Industrial and Information Systems (ICIIS), 2017
An ideal circuit breaker should supply electric power to loads without losses in a conduction case and isolate completely the load from the power source by providing insulation strength in a break case. In AC circuit breaker, it is relatively easy to break the fault current because the AC current becomes zero at every half cycle. However, in DC circuit
Yong-Jung Kim, Hyosung Kim
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