Results 21 to 30 of about 1,289,411 (215)
The Journal of Engineering, 2019 DC fault protection arrangements for a large multi-terminal HVDC (MTDC) network are proposed where fast-acting DC circuit breakers are only used at strategic locations with the large DC network to be operated interconnected but partitioned into islanded ...
Md Habibur Rahman +4 more
doaj +1 more source
Optimizing the roles of unit and non-unit protection methods within DC microgrids [PDF]
, 2012 The characteristic behavior of physically compact, multiterminal dc networks under electrical fault conditions can produce demanding protection requirements.
Burt, Graeme +4 more
core +4 more sources
Optical fiber imaging for high speed plasma motion diagnostics: applied to low voltage circuit breakers [PDF]
, 2010 An integrated portable measurement system is described for the study of high speed and high temperature unsteady plasma flows such as those found in the vicinity of high current switching arcs.
Tribulato, G. +9 more
core +1 more source
Arc root mobility on piezoelectrically actuated contacts in miniature circuit breakers [PDF]
, 2005 A novel contact opening mechanism has been developed using a piezoelectric actuator to open the contacts in a low contact opening velocity circuit breaker.
Weaver, P.M. +5 more
core +1 more source
Aging Characteristics of Contact Electrodes of Low Voltage DC Switches
Energies, 2021 With the present state of the direct current (DC) distribution market, securing the safety of the DC distribution system is emerging as a major issue.
Hyosung Kim
doaj +1 more source
CIRED - Open Access Proceedings Journal, 2017 In the last years the progressive increase of distributed and non-programmable energy sources arise the interest in the use of DC for medium-voltage distribution systems. The study focuses on the design considerations of the apparatus required to support the management and protection of these applications.
Lars Liljestrand +4 more
openaire +1 more source
DC / DC converters as DC circuit-breakers in HVDC networks operation [PDF]
2014 16th European Conference on Power Electronics and Applications, 2014 This paper presents the modeling and control of a DC/DC bidirectional converter suitable for medium voltage and power applications in Multi-Terminals HVDC (MT-HVDC) grids. Moreover its use as DC circuit-breaker is described. This is a new concept, against the contemporary studies of DC breakers, which could help for the implementation of MT-HVDC ...
Jiménez Carrizosa, Miguel +6 more
openaire +2 more sources
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
doaj +1 more source