Results 1 to 10 of about 200,271 (291)

DC fault isolation study of bidirectional dual active bridge DC/DC converter for DC transmission grid application [PDF]

open access: yes, 2015
Fast isolation and detection of DC faults is currently a limiting factor in high power DC transmission grid development. Recent research has shown that the role of DC/DC converters is becoming increasingly important in solving various DC grid challenges ...
Aboushady, Ahmed A.   +2 more
core   +2 more sources

Fault-diagnosis of grid structures

open access: yesTheoretical Computer Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CARUSO A   +3 more
openaire   +6 more sources

Distributed control of a fault tolerant modular multilevel inverter for direct-drive wind turbine grid interfacing [PDF]

open access: yes, 2012
Modular generator and converter topologies are being pursued for large offshore wind turbines to achieve fault tolerance and high reliability. A centralized controller presents a single critical point of failure which has prevented a truly modular and ...
Finney, Stephen, Parker, Max, Ran, Li
core   +1 more source

Autonomous Smart Grid Fault Detection

open access: yesIEEE Communications Standards Magazine, 2023
Smart grid plays a crucial role for the smart society and the upcoming carbon neutral society. Achieving autonomous smart grid fault detection is critical for smart grid system state awareness, maintenance and operation. This paper focuses on fault monitoring in smart grid and discusses the inherent technical challenges and solutions. In particular, we
Li, Qiyue   +6 more
openaire   +2 more sources

Fault detection in dielectric grid scatterers

open access: yesOptics Express, 2015
The problem of diagnosing a grid of small (in terms of the probing wavelength) dielectric scatterers is considered. The aim is to detect and locate possible defects occurring within a known grid when one (or more) scatterer is removed/missing (fault).
BRANCACCIO, Adriana, SOLIMENE, Raffaele
openaire   +2 more sources

Transient stability analysis in Multi-terminal VSC-HVDC grids [PDF]

open access: yes, 2016
A novel approach to transient stability analysis in multi-terminal high voltage direct current (MTDC) grids is presented in this paper. A symmetrical three-phase fault in an ac grid connected to a rectifier terminal of the MTDC grid causes the power ...
Anaya-Lara, O.   +3 more
core   +1 more source

Voltage dip generator for testing wind turbines connected to electrical networks [PDF]

open access: yes, 2011
This paper describes a new voltage dip generator that allows the shape of the time profile of the voltage generated to be configured. The use of this device as a tool to test the fault ride-through capability of wind turbines connected to the electricity
Abbesa   +21 more
core   +2 more sources

Impact of Grid Topology on Pole-to-ground Fault Current in Bipolar DC Grids: Mechanism and Evaluation

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
The fault current level analysis is important for bipolar direct current (DC) grids, which determines the operation and protection requirements. The DC grid topology significantly impacts the current path and then the fault current level of the grid ...
Yingmin Zhang   +7 more
doaj   +1 more source

A transient and non-unit-based protection technique for DC grids based on the rate-of-change (R-o-C) of the fault induced travelling wave components [PDF]

open access: yes, 2019
This paper presents a transient and non-unit-based protection scheme for consideration in DC grids of the future. The technique utilises the rate-of-change (R-o-C) of the associated travelling wave components following the occurrence of a fault to ...
Azizi   +24 more
core   +1 more source

A MISO FAULT DETECTION FOR HVDC GRIDS

open access: yesIET Conference Proceedings, 2021
Research on fault detection for high-voltage direct current (HVDC) grids has had a focus on single-ended DC fault detection using information from only the local line end. This paper proposes the use of additional information from neighbouring lines around the same busbar in a multiple-input single-output (MISO) fault detection.
Jahn, Ilka   +2 more
openaire   +3 more sources

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