Results 21 to 30 of about 639 (185)
Parameter identification of dc black-box arc model using non-linear least squares
The Journal of Engineering, 2019 The black-box arc model is known to be a useful technique to simulate dynamic arc-circuit interaction by reflecting arc characteristics. Existing researches have shown that the black-box model has been widely used to analyse the ac arc characteristics of
Kyu-Hoon Park +3 more
doaj +1 more source
Control Design and Fault Handling Performance of MMC for MMC-Based DC Distribution System
IEEE Access, 2022 Modular multilevel converters (MMCs) have emerged as a viable choice in future DC grid architectures due to their scalability to meet voltage level requirements.
Fazal Muhammad +4 more
doaj +1 more source
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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Smart protection system for identification and localisation of faults in multi-terminal DC microgrid
IET Smart Grid, 2020 DC microgrid provides the horizontal infrastructures to integrate distributed generation (DG) and loads. Unlike traditional AC systems, DC systems cannot survive or sustain high magnitude fault currents. It makes locating faults very difficult.
Rajeev Kumar Chauhan +2 more
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Chengshi guidao jiaotong yanjiuObjective Arc extinction technology for DC (direct current) is one of the design challenges in urban rail transit traction power supply systems. Therefore, it is necessary to analyze the principles of DC opening and arc extinction for main DC fast ...
MENG Junfeng +3 more
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Hybrid Z-Source Circuit Breaker with Thomson Coil for MVDC
Energies, 2023 Hybrid circuit breakers are the most promising circuit breakers among DC circuit breakers. Conventional hybrid circuit breakers complete fault current isolation by converting current to IGBT when fault current occurs.
Hyun-Seung Lee +3 more
doaj +1 more source
DC Circuit Breaker Evolution, Design, and Analysis
Energies, 2023 While traditional AC mechanical circuit breakers can protect AC circuits, many other DC power distribution technologies, such as DC microgrids (MGs), yield superior disruption performance, e.g., faster and more reliable switching speeds.
Mehdi Moradian +2 more
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A capacitive high voltage DC circuit breaker incorporating a current limiting function
Zhejiang dianliDC circuit breakers， as one of the vital devices for fault clearance in DC power systems， significantly influence the secure and stable operation of the system.
TU Lizhong +4 more
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Research on current sharing of paralleled IGBTs in different DC breaker circuit topologies
MATEC Web of Conferences, 2016 IGBT modules used in series and parallel to satisfy the requirement in high-power DC circuit breakers are often prone to large-current destruction due to current unbalance between paralleled IGBTs.
Chen Ying, Zhuo Fang
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Personalized Network‐Guided Neuromodulation Enhances Human Working Memory
Advanced Science, EarlyView.A personalized neuromodulation framework combining individualized functional brain network targeting with real‐time neural decoding is introduced. Using concurrent TMS–fMRI, participant‐specific stimulation targets and optimal frequencies are identified. Only optimal‐frequency stimulation improves working memory across sessions.
Ahsan Khan +13 more
wiley +1 more source