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A New Thyristor-Based DC Circuit Breaker Using Diode Clamping Switching
IEEE transactions on power electronics, 2022It has been widely accepted to apply dc circuit breakers (DCCBs) to protect dc grids. Nevertheless, existing DCCBs have one or more following limitations: insulation recovery scheme of mechanical switch, additional precharge power supply, high conduction
Kejun Qin +5 more
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Design and Development of Solid-state DC Circuit Breaker
2022 International Conference on Electrical Engineering and Sustainable Technologies (ICEEST), 2022As DC power is now being promoted due to its various advantages over AC power, it is more suitable to have a DC grid instead of converting DC to AC for consumption due to the increase of DC generating sources.
Umair Tahir, Waleed Abdullah, Liaqat Ali
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Experimental Evaluation of 5 kV, 2 kA, DC Circuit Breaker With Parallel Capacitor
IEEE Transactions on Power Delivery, 2022This article describes design, operation and experimental testing of a mechanical DC CB (Circuit Breaker) with parallel capacitors. The topology resembles hybrid DC CB but there are possible advantages in the costs since the main semiconductor valve is ...
D. Jovcic, S. Kovacevic
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Medium voltage DC vacuum circuit breaker
2015 3rd International Conference on Electric Power Equipment – Switching Technology (ICEPE-ST), 2015The increased use of directed current (DC) as an enabler for the integration of renewable sources gains rising interest also for power transmission and distribution networks. Some preliminary installations showed some benefit of this technique compared with alternating current (AC) and pushed the development of switchgear for high (HV) and medium ...
Lars Liljestrand +4 more
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Design and Analysis of a Bidirectional Hybrid DC Circuit Breaker Using AC Relays With Long Life Time
IEEE transactions on power electronics, 2021This article presented a new hybrid circuit breaker solution for using in dc microgrids. The proposed solution can offer a high-reliability protection feature for the dc microgrid with low conduction loss, bidirectional current flow, and galvanic ...
K. K. Siu, C. N. Ho, Dong Li
semanticscholar +1 more source
Hybrid DC Circuit Breaker Feasibility Study
IEEE Transactions on Components, Packaging and Manufacturing Technology, 2017Recently, 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.
Dirk Bösche +3 more
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Modeling for series arc of DC circuit breaker
2017 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA), 2017In 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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Circuit breaker for DC micro grids
2015 IEEE First International Conference on DC Microgrids (ICDCM), 2015In 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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Solid-state DC circuit breaker [PDF]
, 2016 A high-speed, solid-state circuit breaker is capable of interrupting high DC currents without generating an arc, and it is maintenance-free. Both the switch and the tripping unit are solid-state, which meet precise protection requirements. The high-speed, solid-state DC circuit breaker uses an emitter turn-off (ETO) thyristor as the switch.
openaire
Self Powered Low Voltage DC Circuit Breaker
2019 National Power Electronics Conference (NPEC), 2019Short circuit protection remains one of the major technical barriers in DC power system because of the high rate of rise of fault currents and the absence of current zeros. Circuit breaker based on power semiconductor devices have the potential of fast interruption of fault currents.
Rajesh M, Himanshu J Bahirat
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