Results 51 to 60 of about 50,443 (265)

Stable operating limits and improvement methods for hydropower and photovoltaic integration through MMC-HVDC systems

Frontiers in Electronics
This paper addresses the critical need to determine the stable operating limit of modular multilevel converter-based high voltage direct current (MMC-HVDC) systems, particularly concerning the integration of extensive renewable energy sources. To achieve
Maolan Peng, Lei Feng, Shuwen Zhang, Wei Zhao   +3 more
doaj   +1 more source

A Thermal Probability Density–Based Method to Detect the Internal Defects of Power Cable Joints

Energies, 2018
Internal defects inside power cable joints due to unqualified construction is the main issue of power cable failures, hence in this paper a method based on thermal probability density function to detect the internal defects of power cable joints is ...
Li Zhang, Xiyue LuoYang, Yanjie Le, Fan Yang, Chun Gan, Yinxian Zhang   +5 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Monte Carlo Simulation-Based Method for Evaluating Sample Thickness Variation to Improve Reliability of Dielectric Strength Assessment

IEEE Access
This study investigated the thickness effect (the influence of sample thickness variation) on the assessment of the dielectric breakdown strength in XLPE and PP insulators.
Keon-Hee Park, Seung-Won Lee, Hae-Jong Kim, Jang-Seob Lim   +3 more
doaj   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Risk Identification and Assessment for the Offshore Demonstration of Submarine Cables

한국해양공학회지
Offshore demonstration of submarine cables is conducted under uncertain marine conditions and complex offshore operations, requiring a systematic risk assessment. This study divides the demonstration process into four phases (loading/unloading, transport,
Young Hoon Shin, Hyeok Jun Koh, Ji Su Lim, Hae Jong Kim, Jin Wook Choe, Jin Seok Lim   +5 more
doaj   +1 more source

Design and Simulation of a Magnetic Flux Control System Using Gradient Permeability Ceramics for Rapid Induction Welding of Cable Conductors

Energies
Efficient on-site connection of power cable conductors is critical for ensuring the safe operation of the power grid. Traditional thermite welding methods pose significant safety risks, including open flames and fumes.
Shuo Zhao, Bingchang Bi, Jianbin Bi, Xindong Zhao, Jiaqi Wang, Jiakun Zou, Ming Zeng, Renfei Zhang, Guochu Luo   +8 more
doaj   +1 more source

Thermo-Hydraulic Analysis of a Tri-Axial High-Temperature Superconducting Power Cable with Respect to Installation Site Geography

Energies, 2020
Various high-temperature superconducting (HTS) power cables are being developed or are ready for commercial operation to help energy suppliers meet the growing power demand in urban areas.
Youngjun Choi, Dongmin Kim, Changhyung Lee, Duyeon Won, Jaeun Yoo, Hyungsuk Yang, Seokho Kim   +6 more
doaj   +1 more source

A novel fault diagnosis method of power cable based on convolutional probabilistic neural network with discrete wavelet transform and symmetrized dot pattern

IET Science, Measurement & Technology, 2023
To accurately diagnose the XLPE power cable insulation fault, this research proposed a novel hybrid algorithm combined with Convolutional Probabilistic Neural Network (CPNN) based on Discrete Wavelet Transform (DWT) and Symmetrized Dot Pattern (SDP ...
Hong‐Wei Sian, Cheng‐Chien Kuo, Shiue‐ Der Lu, Meng‐Hui Wang   +3 more
doaj   +1 more source

Space Charge Formation and its Modified Electric Field under Applied Voltage Reversal and Temperature Gradient in XLPE Cable

, 2008
The results of space charge evolution in cross-linked polyethylene power cables under dc electrical field at a uniform temperature and during external voltage polarity reversal are presented in the paper.
Fu, Mingli, Dissado, L. A., Mingli Fu (6837953), Fothergill, J.C., Len A. Dissado (7583801), George Chen (179705), Chen, G., Fu, M., Fothergill, J., Dissado, L.A., John C. Fothergill (7581362), Chen, George   +11 more
core   +1 more source