Results 21 to 30 of about 8,108,520 (294)

Overview of Oman Power Transmission System and Protection Schemes for Effective Energy Management in Smart Grid Operations

Frontiers in Energy Research, 2021
This article presents an overview of the transmission system and protection schemes employed in the national power grid of Oman. The technical design requirements considering the percentage of allowable limits for the different transmission voltage ...
Saif Al Omairi, Marya Al Balushi, Kenneth E. Okedu, Kenneth E. Okedu   +3 more
doaj   +1 more source

Experimental study of transformer oil explosion affected by a vertical steel plate [PDF]

AIP Advances
The transformer oil within the piping of ultra-high voltage converter transformers is prone to evaporation, forming a flammable oil–gas mixture. In the presence of an ignition source, an explosion of transformer oil can cause severe damage to the power ...
Yubiao Huang, Jiaqing Zhang, Lingxin He, Xianli Zhu   +3 more
doaj   +1 more source

Calculation of fault current in MMC-HVDC based on numerical inverse Laplace transform

电力工程技术, 2022
The fault transient analysis of the modular multilevel converter based high voltage direct-current (MMC-HVDC) system is an important basis for the refined design of protection strategies and the selection of equipment parameters.
WU Tonghua, DAI Wei, LI Xindong, HOU Xiaofan, OUYANG Ziqiang, YAN Zheng   +5 more
doaj   +1 more source

A Novel Magnetic Integration High-Efficiency Converter with Low Ripple and High Dynamic Response for the Hybrid Power Supply Systems of All-Electric Aircraft

Aerospace
With the continuous improvement of battery energy density and converter power density, as well as the miniaturization and lightweighting of related airborne electrical equipment, all-electric aircraft with hybrid power supply systems provide more trade ...
Li Chen, Haifeng Gao, Fengjie Shen, Yiyi Zhang, Liangjie Qiu, Lei Wang   +5 more
doaj   +1 more source

Energy-efficient blockchain-IIoT with mobile edge computing: optimizing resource allocation and multi-hop offloading

Results in Engineering
Blockchain and Mobile Edge Computing (MEC), both of which are edge computing paradigms characterized by strong security attributes, have become a research focus in the Industrial Internet of Things (IIoT) domain.
Yiyi Zhang, Xueyue Xue, Xianfu Lin, Wenchang Wei, Zhicheng Su   +4 more
doaj   +1 more source

DFT-based design and magnetic properties optimization of the α-Fe/Nd2Fe14B dual-phase composite interface [PDF]

AIP Advances
Dual-phase composite magnetic materials can provide a stable bias magnetic field and reduce the losses associated with the excitation current of magnetic controlled reactors. However, the interfacial coupling mechanism of these materials remains unclear.
Jiaxin Yuan, Daixue Zhang, Fuyao Yang, Yang Liu, Cong Wang, Tao Ma, Xinping Guo, Xiaobing Ma, Yijie Zhao, Jiangbo Chen   +9 more
doaj   +1 more source

Adaptive real-time protection scheme for distribution networks with high penetration levels of renewable energy resources

Ain Shams Engineering Journal, 2023
The increasing demands of electrical power have imposed a necessity to integrate renewable energy power sources (REPS) into electrical power networks. The presence of REPS within electrical distribution networks mandated an update in the settings of the ...
Fady Wadie, Ebthal Abdulgawad, A. Mousa Abd-Allah   +2 more
doaj   +1 more source

Application of Transmission Line Tower Foundation Protection in Power Engineering

Highlights in Science, Engineering and Technology, 2023
The area of mountains, hills and plateaus in China accounts for about 69% of the total land area of the country. It is inevitable that the UHV and HV transmission lines under construction will be built in areas with complex geomorphic characteristics.
Zhen Bao, Xia Ji
openaire   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Nano‐kaolin enhances the mechanical, electrical, and thermal properties of cellulose insulating paper

High Voltage
There is an extremely urgent demand in the realm of power equipment, including power transformers, motors, and cables. Specifically, there is a pressing need for cellulose‐based composite insulating paper that can exhibit high thermal conductivity ...
Wenchang Wei, Yuye Zhang, Xuanhao Fu, Shengzhe Yuan, Chenxi Shi, Zhicheng Su, Shihao Luo, Haiqiang Chen, Junwei Zha, Yiyi Zhang   +9 more
doaj   +1 more source