Results 31 to 40 of about 15,608,816 (291)

Controllable reactor based hybrid HVDC breaker [PDF]

open access: yes, 2020
© 2020 BMJ Publishing Group. All rights reserved. Short circuit fault occurrence in high-voltage DC (HVDC) systems causes extremely high currents in a fast raising time that does not experience current zero-crossing. To protect HVDC systems/grids against
Rouzbehi, K, Heidary, A, Bigdeli, M
core   +1 more source

Fault Interruption Scheme for HVDC System Using SiC-MESFET and VCB Based Hybrid Circuit Breaker

open access: yesIEEE Access, 2021
As high voltage DC power system is gaining popularity, power electronic switching devices are becoming increasingly advanced to overcome problems of timely fault isolation.
Waheed A. Khan   +6 more
doaj   +1 more source

Composition of high-voltage circuit breaker voiceprint detection dataset.

open access: yes, 2023
Composition of high-voltage circuit breaker voiceprint detection dataset.
Yucheng Zhang (136327)   +5 more
core   +1 more source

Determination of protection system requirements for DC UAV electrical power networks for enhanced capability and survivability [PDF]

open access: yes, 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   +3 more
core   +4 more sources

Research status and expectation of on-line monitoring technologies of mechanical characteristics of high-voltage vacuum circuit breaker

open access: yesGong-kuang zidonghua, 2016
Basic contents of on-line monitoring technologies of mechanical characteristics of high-voltage vacuum circuit breaker were introduced, and various kinds of methods of on-line monitoring were reviewed.
ZHAO Yang
doaj   +1 more source

Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker

open access: yesChengshi guidao jiaotong yanjiu
Objective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section.
ZHANG Mingrui   +2 more
doaj   +1 more source

Simulation study of integrated‐gate‐commutated‐thyristor based superconducting hybrid direct current circuit breaker

open access: yesHigh Voltage, 2023
With the development of a distributed generation, direct current (DC) load and energy‐storage equipment, voltage‐source‐converter‐based medium‐voltage DC systems (VSC‐MVDC) have attracted more attention due to its low power consumption, high reliability,
Muhammad Junaid   +6 more
doaj   +1 more source

Experimental Modeling of Forward Recovery Characteristics of IGBT for DC Circuit Breaker

open access: yesZhongguo dianli, 2021
DC circuit breaker is the main means to clear the faults in VSC-HVDC power grid. Before action of the hybrid DC circuit breaker, the IGBT in the transfer branch is in a state of zero voltage and zero current.
Hong SHEN   +4 more
doaj   +1 more source

Analysis of SF6 contact based on QPSO-SVR

open access: yesEnergy Reports, 2023
In the condition evaluation of the high-voltage SF6 circuit breaker, contact resistance and mass loss have a significant impact on the arc contact. To that end, this paper proposes a method based on quantum particle swarm optimization and support vector ...
Jianwei Bai   +6 more
doaj   +1 more source

Development of non-intrusive monitoring for reactive switching of high voltage circuit breaker

open access: yes, 2014
High-voltage circuit breakers are among the most important equipments for ensuring the efficient and safe operation of an electric power system. On occasion, circuit breaker operators may wish to check whether equipment is performing satisfactorily and ...
Pater, Ryszard   +6 more
core   +1 more source

Home - About - Disclaimer - Privacy