Results 21 to 30 of about 3,375 (209)

Modelling of Resistive Type Superconducting Fault Current Limiter for HVDC Grids

open access: yesEnergies, 2022
The protection of high voltage direct current (HVDC) grids is a challenge considering that the protection system must detect, locate, and interrupt large fault currents in a few milliseconds. Resistive type superconducting fault current limiters (R-SFCL)
Guillermo García   +2 more
doaj   +1 more source

A natural commutation current topology of hybrid HVDC circuit breaker integrated with limiting fault current

open access: yesIET Generation, Transmission & Distribution, 2023
The high‐voltage direct current (HVDC) power transmission short‐circuit fault protection is a big challenge, and it is the main obstacle to promote the HVDC multi‐terminal networks.
Xiong Zhang, Chaoran Zhuo, Xu Yang
doaj   +1 more source

Research on circuit breaker failure protection and the secondary accelerated fault isolation scheme of VSC-HVDC grids

open access: yesFrontiers in Energy Research, 2023
When the direct current circuit breaker (DCCB) fails to operate, the fault range will further expand, endangering the safe operation of the power gird.
Andi Li   +4 more
doaj   +1 more source

Research on a Novel DC Circuit Breaker Based on Artificial Current Zero-Crossing

open access: yesIEEE Access, 2020
Modular multilevel converter-based high voltage direct-current (MMC-HVDC) transmission has developed rapidly because of its flexibility, reliability and efficiency.
Shangfu Teng, Zhifeng Zhang, Liye Xiao
doaj   +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

Interruption limits of mechanical circuit breakers and circuit upgrades for current injection in HVDC circuit breakers [PDF]

open access: yesHigh Voltage, 2020
Current injection circuit breakers consist of a mechanical interrupter (MI) with a current injection and an energy dissipation branch in parallel. The performance of the complete device is largely determined by mechanical operation time and interruption performance of the MI.
Schultz, Tim; id_orcid0000-0001-7226-2622   +2 more
openaire   +4 more sources

Transient fault identification method for bipolar short‐circuit fault on MMC‐HVDC overhead lines based on hybrid HVDC breaker

open access: yesHigh Voltage, 2021
A bipolar short‐circuit transient fault identification method for overhead transmission lines in modular multi‐level converter‐based high voltage direct current (MMC‐HVDC) grid based on the hybrid HVDC breaker is proposed.
Botong Li   +5 more
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

Controllable reactor based hybrid HVDC breaker

open access: yesHigh Voltage, 2020
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.
Amir Heidary   +4 more
doaj   +1 more source

Interlink hybrid DC circuit breaker [PDF]

open access: yes, 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.
Li, Chuanyue, Liang, Jun, Wang, Sheng
core   +1 more source

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