Results 1 to 10 of about 15,286 (265)

Studies on an Electromagnetic Transient Model of Offshore Wind Turbines and Lightning Transient Overvoltage Considering Lightning Channel Wave Impedance

open access: yesEnergies, 2017
In recent years, with the rapid development of offshore wind turbines (WTs), the problem of lightning strikes has become more and more prominent. In order to reduce the failure rate caused by the transient overvoltage of lightning struck offshore WTs ...
Li Zhang   +4 more
doaj   +3 more sources

Performance Analysis and Model Improvements for Electromagnetic Transient State Estimators

open access: yesIEEE Access
State estimation techniques for the study of electromagnetic transients use measurement records to analyze the propagation of such effects to other unmonitored locations within an electrical grid.
Humberto Cunha de Oliveira   +3 more
doaj   +2 more sources

Enhancing photocurrent transient spectroscopy by electromagnetic modeling [PDF]

open access: yesReview of Scientific Instruments, 2012
The shape and duration of photocurrent transients generated by a photoconductive switch depend on both the intrinsic response of the active material and the geometry of the transmission line structure. The present electromagnetic model decouples both shape forming contributions.
Baillargeat, Dominique   +4 more
openaire   +3 more sources

Electromagnetic transient characteristics and overvoltage suppression strategy of renewable energy-oriented power system connected by gas-insulated transmission lines

open access: yesFrontiers in Energy Research, 2022
New energy systems, such as wind power and photovoltaic and distributed power supply, in the power generation and grid-connected transmission system basically will use stronger insulation design, higher operational safety, and smaller footprint GIL ...
Guang Yang   +4 more
doaj   +1 more source

Complete transformer model for electromagnetic transients [PDF]

open access: yesIEEE Transactions on Power Delivery, 1994
A complete, three phase transformer model for the calculation of electromagnetic transients is presented. The model consists of a set of state equations solved with the trapezoidal rule of integration in order to obtain an equivalent Norton circuit at the transformer terminals. Thus the transformer model can be easily interfaced with an electromagnetic
F. de Leon, A. Semlyen
openaire   +1 more source

An in vitro Evaluation of the Effect of Transient Electromagnetic Fields on Pacemakers and Clinical Mitigation Measures

open access: yesFrontiers in Cardiovascular Medicine, 2020
Background: The effect of transient electromagnetic fields on the function of pacemakers is not well-evaluated. There is a lack of effective methods for clinicians to reduce electromagnetic susceptibility (EMS) during implantation of pacemakers.
Jing Huang   +9 more
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

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

FDTD modeling of induced polarization phenomena in transient electromagnetics [PDF]

open access: yesGeophysical Journal International, 2017
Author(s): Commer, M; Petrov, PV; Newman, GA | Abstract: The finite-difference time-domain scheme is augmented in order to treat the modelling of transient electromagnetic signals containing induced polarization effects from 3-D distributions of polarizable media.
Commer, Michael   +2 more
openaire   +3 more sources

Synchronous Machine Modeling Precision and Efficiency in Electromagnetic Transients [PDF]

open access: yesIEEE Transactions on Power Delivery, 2011
This paper presents various synchronous machine models implemented in the computation of electromagnetic transients. This paper proposes new models for achieving better computational efficiency while maintaining precision. In addition to simple infinite bus analysis, the machine models are also compared for a more sophisticated and practical case study.
Karaağaç, Ulaş   +3 more
openaire   +3 more sources

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