Results 11 to 20 of about 21,219 (327)

New multi-injection commutation topology for circuit breakers of HVDC transmission lines [PDF]

open access: yesScientific Reports
Power-sharing between countries has an essential effect on increasing the power system’s reliability and allowing a resilient energy market. High voltage direct current (HVDC) transmission systems are preferable for long-distance transmission to decrease
Fady Wadie, Mahmoud Elsisi, Tamer Eliyan
doaj   +2 more sources

The Modeling of the LC Divergence Oscillation Circuit of a Superconducting DC Circuit Breaker Using PSCAD/EMTDC

open access: yesEnergies, 2022
We proposed a superconducting DC circuit breaker that can reliably cut off the fault currents in preparation for the DC system. It consists of a superconducting element and a mechanical DC circuit breaker.
Sang-Yong Park   +3 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

Parameters design of voltage sharing components for the series multi‐break mechanical switch

open access: yesIET Science, Measurement & Technology, 2022
Series multi‐break mechanical switch is one of the critical components of high‐voltage hybrid DC circuit breakers. However, due to the existence of distributed capacitance, the voltage distribution between the breaks is not balanced.
Daochun Huang   +5 more
doaj   +1 more source

Topology and control of a novel hybrid HVDC circuit breaker with self-powered capability

open access: yesEnergy Reports, 2022
Power supply for IGBT drive circuit of HVDC circuit breaker is a great challenge in practical engineering. At present, most of the HVDC circuit breakers rely on external power sources. This paper proposes a self-powered hybrid HVDC circuit breaker.
Huangqing Xiao   +4 more
doaj   +1 more source

DC Transmission Grid With Low-Speed Protection Using Mechanical DC Circuit Breakers [PDF]

open access: yesIEEE Transactions on Power Delivery, 2015
This paper introduces a dc transmission grid with fault-tolerant inductor-capacitor-inductor (LCL) voltage-source converters (VSCs) and using a slow protection system based on mechanical dc circuit breakers (CBs). LCL VSC inherently regulates dc fault current to levels that converters can sustain for prolonged periods which avoids insulated-gate ...
Hajian Foroushani, Masood   +2 more
openaire   +2 more sources

The smart IOT earth leakage circuit breaker with transformerless and SMPS auto recloser [PDF]

open access: yes, 2020
Earth leakage Circuit Breaker (ELCB) is function as a protection device that shall install either in industrial or residential protect electrical appliance or user from electrical shock or current leakage.
Hud, Muhammad Haziq   +7 more
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

Operation Characteristics for the Superconducting Arc-Induction Type DC Circuit Breaker

open access: yesEnergies, 2020
The multi-terminal direct current network is expected to commercialize while carrying out projects related to DC power systems worldwide. Accordingly, it is necessary to develop a DC circuit breaker required for the DC power system.
Sangyong Park, Hyosang Choi
doaj   +1 more source

DC Circuit Breaker Evolution, Design, and Analysis

open access: yesEnergies, 2023
While traditional AC mechanical circuit breakers can protect AC circuits, many other DC power distribution technologies, such as DC microgrids (MGs), yield superior disruption performance, e.g., faster and more reliable switching speeds.
Mehdi Moradian   +2 more
doaj   +1 more source

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