Results 31 to 40 of about 249,891 (224)
Tomonaga-Luttinger physics in electronic quantum circuits [PDF]
, 2013 In one-dimensional conductors, interactions result in correlated electronic systems. At low energy, a hallmark signature of the so-called Tomonaga-Luttinger liquids (TLL) is the universal conductance curve predicted in presence of an impurity.
Albert, M. +7 more
core +4 more sources
MATEC Web of Conferences, 2016 Nowadays, using of High Voltage Direct Current (HVDC) transmission to maximize the transmission efficiency, bulk power transmission, connection of renewable power source from wind farm to the grid is of prime concern for the utility.
Fuangpian Phanupong +3 more
doaj +1 more source
Study of Hybrid Transmission HVAC/HVDC by Particle Swarm Optimization (PSO)
Energies, 2022 There are considerable power losses in Indonesia’s SUMBAGUT 150 kV transmission High Voltage Alternating Current Network (HVAC) system. These power losses and the voltage profile are critical problems in the transmission network system.
Yulianta Siregar, Credo Pardede
doaj +1 more source
The Journal of Engineering, 2018 The reflection coefficient of the travelling wave is different with different frequencies because of the inductance and capacitive elements on the boundary of the DC transmission line, which leads to the oscillation of the travelling wave. It is difficult to obtain the wave head's arrival time accurately using travelling wave method to locate fault ...
Bin Wang, Lin Yang, Xinzhou Dong
openaire +1 more source
Dynamical Decentralized Voltage Control of Multi-Terminal HVDC Grids
, 2016 High-voltage direct current (HVDC) is a commonly used technology for long-distance electric power transmission, mainly due to its low resistive losses. When connecting multiple HVDC lines into a multi-terminal HVDC (MTDC) system, several challenges arise.
Andreasson, Martin, Li, Na
core +1 more source
IET Generation, Transmission & Distribution, 2022 Abstract The current differential protection for high‐voltage direct current (HVDC) transmission lines has low reliability due to the distributed capacitive current and time delay. This paper proposes a pilot directional protection, which is based on the calculated DC resistance (CDCR) at both ends of DC lines.
Yayu Yang +6 more
openaire +1 more source
An overview of biodiesel energy [PDF]
, 2020 Over the last ten years’ attention to biofuels production has increased dramatically and become crucial. One of the main factors is the rise in world oil prices, coupled with the abatement of greenhouse gas emissions and concerns about energy security ...
Abd Halim, Muhamad Fazli +3 more
core
A pulsed, mono-energetic and angular-selective UV photo-electron source for the commissioning of the KATRIN experiment [PDF]
, 2017 The KATRIN experiment aims to determine the neutrino mass scale with a sensitivity of 200 meV/c^2 (90% C.L.) by a precision measurement of the shape of the tritium $\beta$-spectrum in the endpoint region.
Beck, M. +17 more
core +3 more sources
Overview and Assessment of HVDC Current Applications and Future Trends
Energies, 2022 High voltage direct current (HVDC) technology has begun to gather a high degree of interest in the last few decades, showing a fast evolution of achievable voltage levels, transfer capacities, and transmission lengths.
Andrei Stan +2 more
doaj +1 more source
Resonance frequency‐based protection scheme for ultra‐high‐voltage direct‐current transmission lines
IET Generation, Transmission & Distribution, 2017 Direct‐current (DC) line faults are a major issue in ultra‐high‐voltage direct‐current systems due to the complex and wicked environment. Thus, reliably detecting and isolating the DC line faults are not a trivial engineering task. This study proposes a DC line protection scheme based on resonance frequency.
Yayu Yang +4 more
openaire +1 more source