Results 111 to 120 of about 249,891 (224)
Energies, 2018 Protection for transmission lines is one of crucial problems that urgently to be solved in constructing the future high-voltage and large-capacity voltage-sourced converter based high voltage direct current (VSC-HVDC) systems.
Xiangyu Pei +2 more
doaj +1 more source
, 2012 We review the first experiment on dynamic transport in a phase-coherent quantum conductor. In our discussion, we highlight the use of time-dependent transport as a means of gaining insight into charge relaxation on a mesoscopic scale.
Berroir, Jean-Marc +3 more
core +1 more source
Entropy, 2015 On the basis of analyzing high-voltage direct current (HVDC) transmission system and its fault superimposed circuit, the direction of the fault components of the voltage and the current measured at one end of transmission line is certified to be ...
Sheng Lin +3 more
doaj +1 more source
IEEE AccessGeomagnetic field observation data are valuable resources for seismic geomagnetic research. However, the construction of subways, light railroads, and high-voltage direct current transmission lines in recent years has seriously affected the output data ...
Weifeng Shan +6 more
doaj +1 more source
IET Generation, Transmission & Distribution, 2015 On the basis of the relation among natural frequency of travelling wave, fault distance and reflect coefficient at the terminal of transmission line, a novel transmission line protection scheme is proposed in this study. The multiple signal classification method is employed to extract the dominant natural frequency through the spectrum analysis of ...
Zheng‐you He, Kai Liao
openaire +1 more source
PERATION PECULIARITIES OF SINGLE-WIRE HIGH FREQUENCY POWER TRANSMISSION LINES
Сельскохозяйственные машины и технологии, 2017 Increasing efficiency of power transmission lines is an important factor for providing agricultural objects with electric power. During the development power transmission systems, lines direct current, lines alternating voltage of industrial frequency ...
L. Yu. Yuferev
doaj +1 more source
Effect of equivalent salt deposit density on flashover voltage of contaminated insulator energized by HVDC [PDF]
, 2000 In Malaysia, the demand for electric power is increasing day by day due to more consumption of power in the industrial sector. Recently, the high voltage DC transmission lines are under construction near the coastal environments for transmitting the ...
Ahmad, H. +6 more
core
Distributed Secondary Frequency Control through MTDC Transmission Systems
, 2015 In this paper, we present distributed controllers for sharing primary and secondary frequency control reserves for asynchronous AC transmission systems, which are connected through a multi-terminal HVDC grid.
Andersson, Göran +4 more
core +2 more sources
Microwave band on-chip coil technique for single electron spin resonance in a quantum dot
, 2007 Microwave band on-chip microcoils are developed for the application to single electron spin resonance measurement with a single quantum dot. Basic properties such as characteristic impedance and electromagnetic field distribution are examined for various
Kanaya H. +7 more
core +1 more source
Optimum Number of Grounded Shield Wires underneath Extra High Voltage Direct Current Transmission Lines [PDF]
, 2014 This paper is aimed at reducing the electric fields underneath extra high voltage direct current transmission lines using grounded shield wires. Two extra high voltage direct current transmission lines are modeled and analyzed.
Samy, Mohamed Mahmoud
core +1 more source