Results 51 to 60 of about 7,658,306 (156)
This study presents a new strategy for implementing the superconducting fault current limiter SFCL in order not only to limit short - circuit currents but also to improve the stability of electrical networks in the presence of faults. The calculation of the impedance that the limiter must introduce into the test network at the moment of the failure is ...
S. Belkhiri, M. Bouroubi, A. Harrabi
openaire +3 more sources
Ferromagnetically Shielded Fault Current Limiter (FS‐FCL) Evaluation in Power Line
This study introduces a new ferromagnetically shielded FS‐FCL design and its control strategy for limiting and interrupting fault currents. The fully shielded core structure enhances inductance and prevents saturation, enabling an immediate fault response without causing voltage drop during normal conditions.
Kamran Ghorbanyan, Selim Acar
wiley +1 more source
Study on Recovery Time of Conduction-Cooled Resistive Superconducting Fault Current Limiter
This paper presents the influence of superconducting tape insulation on the recovery time of superconducting fault current limiters. The analysis is based on the experimental results of short-circuit tests.
Janusz Kozak
doaj +1 more source
Multi‐Layer MTDC Protection: Design and Simulation Assessment
This study proposes a novel multi‐layer protection architecture for multi‐terminal DC systems that separates fault current‐limiting and interruption functions. By combining a thyristor‐based fault current limiter with an active resonance circuit breaker, the scheme significantly reduces peak fault currents and di/dt stress, enabling a more compact ...
Jong‐Geon Lee +3 more
wiley +1 more source
Wind farms equipped by Doubly-Fed Induction Generators (DFIG) should have two capabilities so that system operators can efficiently utilizes them. These capabilities include Fault-Ride-Through (FRT) and smoothing the output active power fluctuations ...
Mostafa Sedighizadeh +2 more
doaj +1 more source
This paper proposes a modular fault‐limiting strategy that integrates multi‐port modules with DC circuit breakers to enhance system regulation. This coordination enables the use of cost‐effective mechanical breakers while significantly improving the fault‐ride‐through capabilities of the distribution network.
Xiaoyong Cao +6 more
wiley +1 more source
High‐Current Cryogenic DC Solid‐State Circuit Breaker for Electric Aircraft
Cryogenic and superconducting technologies have great potential to significantly enhance the power density and efficiency of electric propulsion aircraft. This paper presents the design of a 300 V/1700 A DC solid‐state circuit breaker (SSCB) operating at cryogenic temperatures.
Zhongying Wang +8 more
wiley +1 more source
Transition mechanism of an Inductive-resistive Superconducting Fault Current Limiter (IR-SFCL)
Superconducting fault current limiters (SFCL) are protective devices that limit the current in power lines when it suddenly increases above a certain safe level as a consequence of a fault. This element is connected in series with the line and has a null impedance when the line current is below the safe value (limit current) but significative increase ...
null Pilar Suárez +3 more
openaire +1 more source
Cryogenic DC Circuit Breaker Based on High‐Power Press‐Pack IGBT
This paper presents the performance of cryogenically compatible 3.3 kV/1.5 kA PP‐IGBTs as the main circuit breaker in a hybrid circuit breaker. The 3.3 kV/1.5 kA press‐pack IGBT can interrupt currents exceeding 5.1 kA when immersed in a liquid nitrogen bath. PP‐IGBTs are promising candidates for high‐power circuit breakers in cryogenically cooled power
Zhongying Wang +9 more
wiley +1 more source
With the continuous development of power grid, the high short-circuit threatens the stability of the power system. The short-circuit exceeds the disconnection capacity of the circuit breaker and has a negative impact on the integrity and stability of the
Duanjiao Li +9 more
doaj +1 more source

