Results 21 to 30 of about 55,945 (263)
Dynamic Loading Effect on Fault Current and Arc Flash for a Coordinated Substation
IEEE Access, 2021 Due to load growth and various load types within the service territory, utilities need to enhance the utilization of substations. In any case, towards the coordinated substation design, the utilization of the transformers’ most total capacity ...
A. B. M. Shafiul Azam +3 more
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Fault location for MMC–MTDC transmission lines based on least squares-support vector regression
The Journal of Engineering, 2019 The dc transmission line protection plays a crucial role in the secure operation of a multi-terminal modular-multilevel-converter-based high-voltage direct current (MMC–MTDC) system, which is increasingly adopted as a promising option in the power ...
Mingguang Zhang, Heng Wang
doaj +1 more source
A Protection Method for Inverter-based Microgrid Using Current-only Polarity Comparison
Journal of Modern Power Systems and Clean Energy, 2020 The design of an effective protection system for inverter-based microgrids is a complicated engineering challenge. This is due to the fact that inverters have limited fault current capabilities, and that the conventional overcurrent protection is not ...
Bin Wang, Liuming Jing
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Controllable reactor based hybrid HVDC breaker
High Voltage, 2020 Short circuit fault occurrence in high-voltage DC (HVDC) systems causes extremely high currents in a fast raising time that does not experience current zero-crossing.
Amir Heidary +4 more
doaj +1 more source
Sensors, 2016 The accurate detection of high-frequency transient fault currents in overhead transmission lines is the basis of malfunction detection and diagnosis.
Yadong Liu +5 more
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Research on Access Mode of the Flexible DC Power Distribution System into AC System
Energies, 2019 The connection mode of the direct current (DC) power distribution system and the alternating current (AC) system is the foundation of system design, and it is also one of key technologies of the DC power distribution network.
Yao Liu +5 more
doaj +1 more source
A Practical Protection Coordination Strategy Applied to Secondary and Facility Microgrids
Energies, 2012 In a conventional distribution system, protection algorithms are designed to operate on a unidirectional high fault-current level. In a microgrid, a fault current from distributed generation (DG) may bring about a relay malfunction because of the ...
Woo-Kyu Chae +5 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Type 1 plasminogen deficiency (PLGD‐1) is an ultra‐rare autosomal recessive disorder caused by variants in the PLG gene and affects approximately 1.6 individuals per million. The condition is characterized by decreased plasminogen levels and impaired function, resulting in fibrin‐rich lesions on mucous membranes throughout the body.
Charles Nakar +7 more
wiley +1 more source
Applied Sciences, 2019 This paper presents a novel analytical method (NAM) of inductance identification for a direct drive permanent magnet synchronous motor (DDPMSM) with a stator winding fault (SWF), which considers the spatial position of the shorted turns.
Caixia Gao +4 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei +17 more
wiley +1 more source