Results 51 to 60 of about 891 (185)

Experimental Tests of DC SFCL under Low Impedance and High Impedance Fault Conditions [PDF]

open access: yes, 2021
DC system protection is more challenging than that for AC system due to the rapid rate of rise of the fault current and absence of natural current zero-crossing in DC systems.
Liu, Zhiyuan   +5 more
core   +2 more sources

Experimental investigation of current limiting characteristics for a novel hybrid superconducting fault current limiter (SFCL) with biased magnetic field

open access: yesJournal of Physics: Conference Series, 2020
Abstract High temperature superconducting fault current limiter (SFCL) is widely considered as an effective protection for power system when the short-circuit fault currents occur. This paper proposes a novel design of a hybrid SFCL with biased magnetic field which has two-stage current limiting characteristics.
Jiahui Zhu   +9 more
openaire   +1 more source

A Comprehensive Review of Low-Voltage-Ride-Through Methods for Fixed-Speed Wind Power Generators [PDF]

open access: yes, 2016
This paper presents a comprehensive review of various techniques employed to enhance the low voltage ride through (LVRT) capability of the fixed-speed induction generators (FSIGs)-based wind turbines (WTs), which has a non-negligible 20% contribution of ...
Guerrero, Josep M.   +2 more
core   +2 more sources

THE ANALYSIS ON HYBRID SUPERCONDUCTING FAULT CURRENT LIMITER (SFCL) USAGE TO LIMIT SHORT CIRCUIT FAULT CURRENT OF 20 KV ELECTRIC POWER DISTRIBUTION IN SENGKALING SUBSTATION [PDF]

open access: yesJEEMECS (Journal of Electrical Engineering, Mechatronic and Computer Science), 2020
Abstract —The occurrence of fault in electrical power system operation is inevitable. The causes of fault in electrical power transmission and distribution system for instances are lighting strikes on transmission canal, tree collapses, or short circuit inter-phases to the ground.
Eko Nurcahyo   +2 more
openaire   +1 more source

380 kV Superconducting Fault Current Limiter Feasibility Study [PDF]

open access: yes, 2023
In this study the technical and economic feasibility of a 380 kV, 5 kA resistive type superconducting fault current limiter was investigated. Conceptual designs were developed with superconducting tapes cooled by liquid nitrogen and arranged in bifilar ...
Arndt, Tabea   +11 more
core   +2 more sources

Impact of key design constraints on fault management strategies for distributed electrical propulsion aircraft [PDF]

open access: yes, 2017
Electrically driven distributed propulsion has been presented as a possible solution to reduce aircraft noise and emissions, despite increasing global levels of air travel.
Flynn, Marie-Claire   +4 more
core   +1 more source

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids [PDF]

open access: yes, 2017
Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG.
Conde, Arturo   +3 more
core   +1 more source

Application Simulation of a Resistive Type Superconducting Fault Current Limiter (SFCL) in a Transmission and Wind Power System [PDF]

open access: yesEnergy Procedia, 2015
Due to the increased fault-level currents, superconducting fault current limiter (SFCL) is more likely to penetrate into a low voltage and medium voltage transmission network to improve their stability and lower the electric devices capacity.
Zhu, Jiahui   +5 more
openaire   +2 more sources

Architecture, Voltage and Components for a Turboelectric Distributed Propulsion Electric Grid [PDF]

open access: yes, 2015
The development of a wholly superconducting turboelectric distributed propulsion system presents hide unique opportunities for the aerospace industry.
Armstrong, Michael J.   +6 more
core   +3 more sources

Protection system considerations for DC distributed electrical propulsion systems [PDF]

open access: yes, 2015
Distributed electrical propulsion for aircraft, also known as turbo-electric distributed propulsion (TeDP), will require a complex electrical power system which can deliver power to multiple propulsor motors from gas turbine driven generators.
Armstrong, M.   +6 more
core   +1 more source

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