Results 51 to 60 of about 2,365 (223)
IET Smart Energy Systems, Volume 2, Issue 1, Page 49-61, March 2026.A series of improved active disturbance rejection controller (ADRC) methods are proposed, and their parameter tuning processes are presented. They are comprehensively compared with regular proportional integral (PI) control and ADRC, and detailed superheated steam temperature (SST) simulations are carried out to verify their notably superior control ...
Honghao Li +3 more
wiley +1 more source
Exact quantum states of a general time-dependent quadratic system from classical action
, 1998 A generalization of driven harmonic oscillator with time-dependent mass and frequency, by adding total time-derivative terms to the Lagrangian, is considered.
A. Mostafazadeh +25 more
core +1 more source
Ferromagnetically Shielded Fault Current Limiter (FS‐FCL) Evaluation in Power Line
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.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
Energies, 2019 The half bridge (HB) modular multilevel converter (MMC) technology is considered a breakthrough to mitigate the shortcomings of the conventional voltage source converter (VSC) in high-voltage direct-current (HVDC) grid application.
Ho-Yun Lee +4 more
doaj +1 more source
Detailed Review of a Novel Model SFCL for Grid [PDF]
Journal of Physics: Conference Series, 2020 Abstract Our paper shows an RL-Indirect SFCL model (RL-I-SFCL). The applied superconducting tape is SF 12100 (Furukawa Electric Group). In the case of the operational current of a grid, the superconducting wire is in a serial connection with the grid as in a resistive SFCL.
Janos A Kosa +4 more
openaire +1 more source
Studies on the active SISFCL and its impact on the distance protection of the EHV transmission line [PDF]
, 2016 The active saturated iron-core superconductive fault current limiter (SISFCL) is a good choice to decrease fault current. This paper introduced the principles and impedance characteristic of the active SISFCL.
Coombs, Tim +5 more
core +2 more sources
Multi‐Layer MTDC Protection: Design and Simulation Assessment
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.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
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.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
Development and test of a small resistive fault current limiting device based on Hg, Re-1223 and Sm-123 ceramics [PDF]
Materials Research, 2014 Several reports describing Superconducting Fault Current Limiter (SFCL) containing members of the bismuth or yttrium ceramics were already described. However, none of these included the mercury and samarium cuprates.
Carlos Augusto Cardoso Passos +10 more
doaj +1 more source
System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]
, 2019 Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden +11 more
core +1 more source