Results 71 to 80 of about 166 (136)

An Optimal Design Approach for Resistive and Inductive Superconducting Fault Current Limiters via MCDM Techniques

open access: yesIranian Journal of Electrical and Electronic Engineering, 2011
The design process of a superconducting current limiter (SFCL) requires simulation and definition of its electrical, magnetic and thermal properties in form of equivalent circuits and mathematical models. However, any change in SFCL parameters: dimension,
H. Heydari, R. Sharifi
doaj  

Feasible protection strategy for HVDC system by means of SFCL and passive resonance DC breaker

open access: yesThe Journal of Engineering, 2019
The key obstacle in implementing high-voltage direct current (HVDC) grid, which is considered as the future of power grid, is the absence of effective DC circuit breaker (DCCB). At present, HVDC grid could be based on half-bridge (HB) or full-bridge (FB)
Ho-Yun Lee   +3 more
doaj   +1 more source

Transient Stability Improvement using Resistive-type Superconducting Fault Current Limiters (R-SFCL)

open access: yesInternational Journal of Engineering Technology and Sciences, 2019
The rapid growth in the demand for electrical energy due to the astronomic growth in population has led to increase in the system fault current levels. This increase in fault current if not properly checked, could lead to system collapse. Superconducting Fault Current Limiters (SFCLs) are used in power system networks to mitigate against high fault ...
openaire   +2 more sources

Enhancement of DUBAL Network Operational Performance Using Resistive High Temperature Superconducting Fault Current Limiter

open access: yesEnergies, 2019
Power systems under expansion suffer from escalating fault levels that impact equipment integrity, operational flexibility, and the overall security of the system.
Hamood Naji   +2 more
doaj   +1 more source

Investigation of the Superconducting Fault Current Limiter (SFCL) applied in electrical power system with Distributed Generations (DGs) [PDF]

open access: yes, 2016
Over the past few decades, electricity supply systems have greatly expanded and become far more sophisticatedly interconnected than ever, mainly due to the continuous increase of power demand. Consequently, the fault current levels have increased significantly and become a major concern for electric power systems and may bring adverse effects to system
openaire   +3 more sources

Technical Evaluation of Superconducting Fault Current Limiters Used in a Micro-Grid by Considering the Fault Characteristics of Distributed Generation, Energy Storage and Power Loads

open access: yesEnergies, 2016
Concerning the development of a micro-grid integrated with multiple intermittent renewable energy resources, one of the main issues is related to the improvement of its robustness against short-circuit faults.
Lei Chen   +6 more
doaj   +1 more source

Study of Superconducting Fault Current Limiter Device in a AC Railway System [PDF]

open access: yesInternational Journal of Railway Research, 2015
Development of the electric networks led to more interconnection in this system, therefore high level of short circuit faults flows in the networks. Many destructive damages such as instability, insulation problems and voltage mitigation can highly play ...
S. M. Mousavi G
doaj  

Enhancing LVRT Capability of DFIG-Based Wind Turbine Systems with SMES Series in the Rotor Side

open access: yesInternational Journal of Rotating Machinery, 2017
The necessary Low Voltage Ride Through (LVRT) capability is very important to wind turbines. This paper presents a method to enhance LVRT capability of doubly fed induction generators- (DFIGs-) based wind turbine systems with series superconducting ...
Xiao Zhou, Yuejin Tang, Jing Shi
doaj   +1 more source

Application of a Superconducting Fault Current Limiter to Enhance the Low-Voltage Ride-Through Capability of Wind Turbine Generators

open access: yesEnergies, 2019
The penetration of wind turbine generators onto the grid has grown worldwide at unprecedented rates in recent years. This raises the concern that the tripping of wind turbine generators could potentially cause system collapses.
Hyeong-Jin Lee   +2 more
doaj   +1 more source

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