Results 31 to 40 of about 1,496 (223)
DC interruption characteristic of vacuum circuit breaker
Electrical Engineering in Japan, 2005 AbstractA high‐speed vacuum circuit breaker (HSVCB) has been investigated. HSVCB makes high‐frequency current superimposed on a fault current so that the current is forced to be zero and is interrupted. Its interruption performance is considered to be dependent on the rate of change of the current (di/dt). As a fundamental research, we investigated the
Odaka, Hiromi +5 more
openaire +2 more sources
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
T-Type Modular DC Circuit Breaker (T-Breaker) as a Compensator for Future DC Grids
IEEE Access, 2023 When ac and dc microgrids get exposed to load power changes or voltage transients, instability could occur owing to constant power loads’ (CPLs) behaviour. CPL has the negative impedance behaviour which is the reason behind such instability. A flexible alternating current transmission system (FACTS) devices are used in ac grid to help improve ...
Faisal Alsaif +5 more
openaire +2 more sources
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
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
doaj +1 more source
, 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 +7 more
core +1 more source
A review on z-source solid state circuit breakers for DC distribution networks [PDF]
, 2023 DC technologies will be essential building blocks for future dc distribution networks. As in any dc system, these networks will face crucial threats imposed by short-circuit dc faults.
Wang, Yufeng +11 more
core +1 more source
The Alternate Arm Converter: A New Hybrid Multilevel Converter With DC-Fault Blocking Capability [PDF]
, 2013 This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC).
Merlin, Michael MC +6 more
core +1 more source
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
doaj +1 more source
Advanced Energy Materials, EarlyView.This work presents lightweight, lignin‐derived carbon fiber current collectors that enable controlled lithium deposition. Structural defects and intermediate‐sized pores stabilize pre‐nucleation quasi‐metallic lithium clusters, promoting uniform lithium plating and stripping.
Samantha L. S. Southern +13 more
wiley +1 more source