Results 11 to 20 of about 8,461 (290)

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

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

Influence of capacitor-buffered hybrid DC circuit breaker on bipolar short circuit fault of three-terminal MMC-HVDC transmission system

open access: yesEnergy Reports, 2020
The flexible DC transmission system needs a DC circuit breaker to remove and isolate the bipolar short-circuit fault to prevent the excessive short-circuit current from damaging the DC transmission system.
Can Ding   +3 more
doaj   +1 more source

Impact on Current-Interrupting Characteristic by Parameter Settings of Superconducting Hybrid DC Circuit Breaker

open access: yesEnergies, 2021
DC faults cause severe disruption in not only the DC system but also the AC system because the fault current is very large and rapidly increases. The DC circuit breaker used to separate the DC faults from the power system is still being researched, but ...
Sang-Jae Choi, Sung-Hun Lim
doaj   +1 more source

Hybrid DC circuit breaker with coupled inductor for automatic current commutation [PDF]

open access: yes, 2020
HVDC transmission systems using voltage source converters (VSC-HVDC) have been identified as an attractive solution for bulk power delivery over long distance. However if DC grids are to be built using this technology, fast DC circuit breakers are needed.
Barnes, Mike   +3 more
core   +2 more sources

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

A Self-commutated HVDC Circuit Breaker Based on Forced Zero Crossing Technology

open access: yesZhongguo dianli, 2021
In order to improve the breaking capacity of Hybrid DC circuit breaker and reduce the harm of DC short circuit fault to the system, we proposed a self-commutated HVDC circuit breaker based on forced zero crossing technology.
Guoqing LI   +3 more
doaj   +1 more source

Short-Circuit Fault Current Calculation Method for the Multi-Terminal DC Grid Considering the DC Circuit Breaker

open access: yesEnergies, 2020
The analysis and calculation of the short-circuit fault current in the DC grid is of great significance to the design and configuration of the converter station and DC circuit breaker parameters.
Haipeng Jia   +5 more
doaj   +1 more source

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

A hybrid DC circuit breaker based on a generalized H-bridge circuit

open access: yesZhejiang dianli, 2023
Given the rapid development of multi-terminal DC power grids and the treatment of DC faults, a high-voltage hybrid DC circuit breaker based on a generalized H-bridge circuit is proposed.
LU Yi   +6 more
doaj   +1 more source

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