Results 11 to 20 of about 639 (185)
A Dual-Bridge Hybrid DC Circuit Breaker [PDF]
IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society, 2021 Various DC circuit breakers (DCCBs) have been widely proposed for the DC fault protection of high-voltage direct-current (HVDC) grids. In recent years, hybrid DCCBs (HCBs) have been paid significant attentions due to their features of low power losses and fast dynamic response.
Hanwen Zhang 0005 +4 more
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Interlink Hybrid DC Circuit Breaker [PDF]
IEEE Transactions on Industrial Electronics, 2018 —To protect HVDC grids from DC faults, the concept of a hybrid DC circuit breaker is widely accepted due to its low conduction losses and fast interruption speed. For a well-built DC grid, a massive number of hybrid DC circuit breakers have to be installed. This will lead to high capital costs.
Chuanyue Li +2 more
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Operating DC Circuit Breakers With MMC [PDF]
IEEE Transactions on Power Delivery, 2018 High Voltage Direct Current (HVDC) grids may be protected from dc faults through the application of HVDC circuit breakers. Recent advances in dc circuit breaker technologies may allow faults in the dc grid to be cleared without a permanent loss of power to the connected ac grids.
Oliver Cwikowski +4 more
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Superconducting Interface for a DC Circuit Breaker [PDF]
8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016), 2016 High voltage direct current (HVDC) circuit breakers are a key technology to enable fault management for multi terminal DC (MTDC) networks. DC circuit breakers using superconductors for current limiting have been proposed previously and experimentally tested at low voltage levels.
Pei, Xiaoze +2 more
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Simulation Model to Analyze the Consequences of DC Faults in MMC-Based HVDC Stations
Electricity, 2021 The global development of high-voltage direct-current (HVDC) systems in fields such as renewable energy sources, interconnection of asynchronous grids or power transmission over great distances, is unquestionably important.
Davin Guedon +3 more
doaj +1 more source
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
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Parameters of DC high-speed circuit-breakers
MATEC Web of Conferences, 2018 DC high-speed circuit-breakers (HSCB) are the basic protection to cut off short-circuit and overload currents. People’s and railway infrastructure devices’ safety depend on their reliability and parameters.
Rojek Artur
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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
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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
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