Results 11 to 20 of about 17,106 (263)

Electromagnetic-Structure Transient Coupling Analysis of Large Cross-Sectional High Voltage Cables

open access: yesZhongguo dianli, 2021
The cable cleats play a role in fixing and supporting the cables. The cable cleats will withstand very large electromotive force when the grids are short-circuited. The deterioration of their mechanical properties may cause a serious threat to the stable
Na SUN   +3 more
doaj   +1 more source

Design and Performance Analysis of a Saturated Iron-Core Superconducting Fault Current Limiter for DC Power Systems

open access: yesEnergies, 2020
A saturated iron-core superconducting fault current limiter (SI-SFCL) can significantly limit the magnitude of the fault current and reduce the stress on circuit breakers in direct current (DC) power systems. The SI-SFCL consists of three main parts: one
Van Quan Dao   +4 more
doaj   +1 more source

Modeling of a Dual Air-Gap Liquid-Cooled Eddy Current Retarder Considering Transient Permeability

open access: yesWorld Electric Vehicle Journal, 2023
This paper proposes a model for the electromagnetic performance of the dual air-gap liquid-cooled eddy current retarder (DAL-ECR) considering the transient permeability. First, the structure and working principle of the DAL-ECR are introduced.
Wenguang Guo, Bin Yan, Desheng Li
doaj   +1 more source

Influence of electromagnetic interference on the evaluation of lidar-derived aerosol properties from Ny-Ă…lesund, Svalbard [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
Possible interference sources for our aerosol lidar setup with transient recorders have been assessed. This was done by two methods: a spectrum analysis of the lidar signals in order to detect radio-frequency interference and measurements of the ...
T. Poguntke, C. Ritter
doaj   +1 more source

Hierarchical Layout Method for Automatic Transformation of Large-Scale Electromechanical-Electromagnetic Transient Simulation Model

open access: yesZhongguo dianli, 2022
The automatic layout of station nodes and network topology is a vitally important link to realize the automatic transformation of electromechanical-electromagnetic transient simulation model, which is of great significance to improve the modeling ...
Hailin HE   +4 more
doaj   +1 more source

Analysis of electromagnetic field transient on branch feeders by numerical electromagnetic field computation

open access: yesElectrical Engineering in Japan, 2002
AbstractThis paper presents the fundamental surge phenomenon when a step voltage is applied to a horizontal line above the ground which has branch feeders. We study line current and voltage at joint with the method of moments that calculates electromagnetic field in frequency domain.
Isao Hasegawa   +4 more
openaire   +2 more sources

Groundwater resources detection based on transient electromagnetic system with small coils in Hongshaquan Mining Area

open access: yesMeikuang Anquan, 2022
Groundwater environment is closely related to the protection and restoration of surface ecological environment, and the detection of groundwater resources is an important content to master the characteristics of groundwater environment.
LI Haichao, XU Biao, HU Xiongwu
doaj   +1 more source

An improved VSG control strategy based on transient electromagnetic power compensation

open access: yesScientific Reports, 2023
Virtual synchronous generator (VSG) not only increases the inertia of grid-connected system, but also brings the problem of active power oscillation under grid disturbance.
Changwei Gao   +3 more
doaj   +1 more source

The electromagnetic stability analysis of superconducting high-speed maglev system [PDF]

open access: yesAIP Advances
The electromagnetic stability analysis of electro-dynamic high-speed maglev systems is a key research topic. An electromagnetic stability analysis model of the high-speed superconducting maglev system is introduced. The model could be used to analyze the
Weilai Shang
doaj   +1 more source

Research on longitudinal resolution of loop source transient electromagnetic method

open access: yesMeikuang Anquan
The loop source transient electromagnetic method has been widely applied in the hydrogeological exploration of coal mines, such as demarcating impermeable layers, detecting waterlogged goaf areas, and evaluating hydro-geological parameters.
Tao XING   +3 more
doaj   +1 more source

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