Results 21 to 30 of about 21,788 (303)

A Modified Hybrid DC Circuit Breaker With Reduced Arc for Low Voltage DC Grids

open access: yesIEEE Access, 2021
The increasing demand for the development and utilization of renewable energy resources has lead to a growing interest in the development of LVDC systems.
C. N. Muhammed Ajmal   +4 more
doaj   +1 more source

Research on the action characteristics and breaking control of 100 kA series double break DC vacuum circuit breaker for CRAFT quench protection system

open access: yesAIP Advances, 2023
The DC vacuum circuit breaker plays an important role in the quench protection system of the Comprehensive Research Facility for Fusion Technology (CRAFT) project.
Xingguang Hu   +5 more
doaj   +1 more source

Capacitor Commutation Method for MVDC Hybrid Circuit Breakers

open access: yesDesigns, 2021
The medium voltage DC (MVDC) type system can connect multiple terminals to a common MVDC bus, so it is possible to connect several renewable DC power sources to the common MVDC bus, but a DC circuit breaker is needed to isolate short circuit accidents ...
Hyosung Kim
doaj   +1 more source

Current Limiting Hybrid High Voltage DC Circuit Breaker With Reclosing Function Limiting

open access: yesJournal of Applied Science and Engineering, 2022
DC circuit breaker is the core equipment for the safe operation of DC transmission system. A current limiting hybrid HVDC circuit breaker topology with reclosing function is proposed in this paper.
Baoge Zhang   +4 more
doaj   +1 more source

Arcless opening of direct current circuits in technical systems [PDF]

open access: yes, 2017
Operation of the proposed DC circuit breaker consists in the fact that the closing of the thyristor in the DC power circuit with an inductive load results from opening the auxiliary circuit with a current value several fold less than the load current ...
Novikov, Sergey Avtonomovich   +2 more
core   +1 more source

Gate Drive Controller for Low Voltage DC Hybrid Circuit Breaker

open access: yesEnergies, 2021
With the advent of direct current (DC) loads such as LED lighting, IT equipment, electric vehicles, and DC powers generated from renewable energy sources, low voltage DC (LVDC) distribution system is becoming a hot issue.
Hyosung Kim
doaj   +1 more source

DC vacuum circuit breaker

open access: yesCIRED - 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

Reduced DC circuit breaker requirement on mixed converter HVDC networks [PDF]

open access: yes, 2015
© 2015 IEEE.Recently proposed meshed HVDC networks include both converters and DC circuit breakers, and the fault currents experienced and therefore the capacity requirement of circuit breakers are dependent on the topology of converters used on the ...
Chaffey, G, Green, TC
core   +1 more source

DC/DC converters based on hybrid MMC for HVDC grid interconnection [PDF]

open access: yes, 2015
This paper presents a multi-terminal high-power DC/DC converter configuration based on hybrid MMC topology with fault blocking capability for interconnecting HVDC systems.
Xu, Lie, Yao, Liangzhong, Zeng, Rong
core   +1 more source

A hybrid circuit breaker based on current commutation approach for multi-feeder DC railway substations

open access: yesCSEE Journal of Power and Energy Systems, 2019
The paper presents an economic hybrid circuit breaker for limiting and interrupting the faults in DC railways substations. For fast fault current interruption, the hybrid breaker incorporates high speed mechanical contacts actuated by power semiconductor
Saady Hasan
doaj   +1 more source

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