Results 31 to 40 of about 21,219 (327)
A novel current-limiting hybrid DC breaker based on thyristors
Energy Reports, 2023 Since the DC current has no zero-crossing in high-voltage and large-capacity DC scenarios, and the low line impedance results in a large growth rate of fault current, the breaking requirements of DC circuit breakers (DCCB) are further increased.
Xinchao Yu +4 more
doaj +1 more source
Investigations on the safe stroke of mechanical HVDC vacuum circuit breaker
The Journal of Engineering, 2019 Here, a DC vacuum arc interruption test based on the hybrid high-speed actuator and the method of commutation is carried out in the synthetic loop system. The safe stroke is one of the basic breaking parameters.
Ning Xia +5 more
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Design and Analysis of a DC Solid-State Circuit Breaker for Residential Energy Router Application
Energies, 2022 Energy routers act as an interface between the distribution network and electrical facilities, which meet the requirements of clean energy substitution and achieve the energy sharing and information transmission in the energy network.
Saeed Rahimpour +2 more
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A Study on the Hybrid Arc Extinguishing Mechanism of the DC Circuit Breaker
The Journal of Korea Navigation Institute, 2015 공급되는 전력은 교류 전원이므로 실질적으로 필요로 하는 부하의 공급 전원인 직류 전원을 만족하기 위하여 교류 전원을 다시 직 류로 변환하여 사용하고 있다. 태양광, 풍력, 연료전지 등 신재생 에너지원의 경우 직류 발전을 하는 발전원으로 교류로 변환을 통 해 계통에 유입되고 다시 직류로 변환되어 부하에 공급하게 되는 다단 변환을 하게 되어 손실은 지속적으로 증가하게 된다. 에너지 원의 효율적인 사용을 위한 직류 기반의 배전 시스템이 필요로 하나, 부하뿐만 아니라 보호 기능을 구현하기 위한 직류 배선용 차 단기의 개발이 필요하다. 이에 본 연구에서는 영구 자석을 이용한 아크 소호 기술과 하이브리드 아크 소호 기술을 이용한 직류 아
Nam-Kyu Joo, Nam-Ho Kim
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IEEE Open Journal of the Industrial Electronics Society, 2023 This article gives an overview of challenges in primary distribution, protections, and power scalability for shipboard dc systems. Given that dc technology is in development, several aspects of shipboard systems have not yet been sufficiently devised to ...
Alejandro Latorre +4 more
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Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]
, 2011 A growing number of designs of future Unmanned Aerial Vehicle (UAV) applications utilise dc for the primary power distribution method. Such systems typically employ large numbers of power electronic converters as interfaces for novel loads and generators.
Burt, Graeme +3 more
core +1 more source
IEEE Access, 2021 The number of devices either providing or demanding direct current is growing more and more. This led to the renascence of DC grids and revealed a need for research. One critical component is the DC circuit breaker.
Dirk Bosche +5 more
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Pakistan Journal of Engineering & Technology, 2022 Although traditional electromechanical circuit breakers have a proven track record as efficient and reliable circuit safety devices. Emerging power distribution technologies and architectures such as DC microgrids require advanced breaking performance ...
Muhammad Zulqair Nain, Tahir Mahmood
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机车电传动, 2022 A hybrid DC circuit breaker is the core protection equipment of a DC system, and its key parameters are critical to the products design and application, so the research on the influencing factors to such key parameters is of great significance to the ...
LUO Wenguang +4 more
doaj
Overview of the arc mechanism and extinguishing in the circuit breaker of a more-electric aircraft
工程科学学报, 2023 A more-electric aircraft refers to an aircraft whose secondary power is unified from the traditional multi-energy, such as mechanical energy, hydraulic energy, and pneumatic energy, to the electrical energy, which has the advantages of a simple system ...
Yuan JIANG +5 more
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