Results 61 to 70 of about 1,102 (185)
Analysis of DC offset in fault current caused by machines in a medium voltage distribution network
The Journal of Engineering, 2019 This study presents a study on the time when the short-circuit fault current in an MV distribution network will cross the zero point in the presence of DC offset affected by the local synchronous and/or induction machines.
Erfan Bashar +6 more
doaj +1 more source
Low‐Frequency Oscillation Suppression Strategy Based on NPOD‐SVC‐VSG Grid‐Connected System
IET Energy Systems Integration, Volume 8, Issue 1, January/December 2026.ABSTRACT The power control loop in a virtual synchronous generator (VSG) exhibits inherently insufficient damping, making it prone to low‐frequency oscillation (LFO) under disturbances. Moreover, the dynamic coupling between active and reactive power can induce unnecessary reactive power fluctuations during active power transfer.
Haixin Wang +8 more
wiley +1 more source
IET Power ElectronicsRemaining useful life (RUL) prediction is a key technology for prognostics and health management (PHM). However, the conventional thyristor RUL prediction method that solely relies on a single degradation indicator proves insufficient in comprehensively ...
Yujiao Zhang +5 more
doaj +1 more source
Electrodynamic braking in high-speed rail transport [PDF]
Transport, 2007 The paper considers electrodynamic braking of trains, which is of particular importance for high-speed railway transport from theoretical and technical perspectives. Braking methods used for high-speed trains should ensure compatibility and redundancy of
L. Liudvinavičius, L. P. Lingaitis
doaj
Medium-Voltage AC Static Switch Solution to Feed Neutral Section in a High-Speed Railway System
Energies, 2018 A high-speed train (HST) is a single-phase load supplied by a three-phase AC grid. The HST produces unbalanced three-line currents affecting the power quality of the grid.
Jose Maria Canales +4 more
doaj +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
Series Current Flow Controllers for DC Grids
IEEE Access, 2019 Large-scale grid integration of renewables and cross-country border energy exchange may be facilitated by multi-terminal high-voltage direct-current (MTDC) grids.
Senthooran Balasubramaniam +2 more
doaj +1 more source
Development of 6-inch High di/dt Thyristor for Pulse Switch
Kongzhi Yu Xinxi Jishu, 2014 For the high requirements of the thyristor for pulse switch on di/dt tolerance, the turn-on process and di/dt failure mechanism of thyristor are described.
WANG Zhengying +4 more
doaj
Technology Research on Rail Potential Limit of Urban Rail Transit
机车电传动, 2018 The OVPD device is an important component of the protective equipment in the power supply system of urban rail transit. Basic principle of rail potential limiting protection for urban rail transit was analyzed, and a new type of rail potential limiter ...
CHEN Chaolu +4 more
doaj
Open EngineeringMeta-heuristic approaches evaluate the optimum size and position of flexible alternative current transmission systems power systems. The seeker optimization algorithm (SOA) technique was used to solve power engineering optimization problems with better ...
Jawad Ihsan Mousa +4 more
doaj +1 more source