Results 71 to 80 of about 311,111 (242)
Space charge behaviors in cable insulation under a direct current‐superimposed pulsed electric field
High Voltage, 2021 When high‐voltage direct current (HVDC) cables are subjected to a direct current(DC)‐superimposed pulsed electric stress, the pulsed voltage applied facilitates electrical tree generation and breakdown; however, the mechanism involved remains unclear. To
Dongxin He +6 more
doaj +1 more source
An Overview on Reversible Sea Return Electrodes for HVDC Links
Energies, 2023 HVDC electrodes are usually implemented in HVDC links to avoid the installation of a metallic return. Submarine cables, especially those dealing with lengths of thousands of kilometers, are expensive, and high costs of laying are normally expected.
Massimo Brignone +4 more
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Research on DC leakage protection of communication base station in mining area
Meikuang Anquan, 2022 In order to solve the problem that the high-voltage DC power supply system of the communication base station of the intelligent fire protection system in the open-pit coal mine area has the risk of personal electric shock when the insulation of any ...
ZHU Yannan +3 more
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A Multi-Terminal HVdc Grid Topology Proposal for Offshore Wind Farms
Applied Sciences, 2020 Although various topologies of multi-terminal high voltage direct current (MT-HVdc) transmission systems are available in the literature, most of them are prone to loss of flexibility, reliability, stability, and redundancy in the events of grid ...
Ali Raza +5 more
doaj +1 more source
Energies, 2021 Mass Impregnated PPLP cable, which is applied to various high-voltage direct current (HVDC) projects due to its excellent dielectric and temperature properties, has a problem wherein voids are formed inside the butt-gap due to cavitation.
Dong-Hun Oh, Ho-Seung Kim, Bang-Wook Lee
doaj +1 more source
Fault Location Test for HVDC Submarine Cables [PDF]
Journal of International Council on Electrical Engineering, 2011 AbstractThe simplified fault location method which is described in this paper is tested at HVDC submarine cable test yard located in KEPCO Power Testing Center of Korea. The total length of tested submarine cable is 194 m, and it has 4 earth points, each point is grounded between shield layer and seawater under the sea respectively.
Chae-kyun Jung +4 more
openaire +1 more source
Distributed Primary Frequency Control through Multi-Terminal HVDC Transmission Systems [PDF]
, 2015 This paper presents a decentralized controller for sharing primary AC frequency control reserves through a multi-terminal HVDC grid. By using Lyapunov arguments, the proposed controller is shown to stabilize the equilibrium of the closed-loop system ...
Andersson, Göran +4 more
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EnergiesThis paper studies the THD and AC losses on the DC cables of offshore wind farm-based multi-terminal HVDC systems when they extract and deliver power from and to more than one connection point.
Xiaoyun Rong +3 more
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Analysis of Transient Behavior of Mixed High Voltage DC Transmission Line Under Lightning Strikes
IEEE Access, 2019 Growing urbanization coupled with increased power demands have led to increasing use of mixed power transmission lines with sections of overhead lines (OHL) and underground cables.
Mansoor Asif +4 more
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HVDC Submarine Power Cables in the World: State-of-the-Art Knowledge [PDF]
, 2015 This report is the first deliverable of the OTG ("Offshore Transnational Grid") Work Package (2015-2016), which is intended to identify and analyse the engineering and geopolitical challenges for realising a transcontinental energy interconnection ...
ARDELEAN MIRCEA, MINNEBO PHILIP
core +1 more source