Results 1 to 10 of about 10,101 (293)

Numerical simulation of transient electromagnetic over casing wells with compensating coils [PDF]

open access: yesScientific Reports
In the middle and late stages of oil and gas field development, improving the accuracy of resistivity measurement is of great significance in assessing the residual oil saturation of reservoirs.
Zhiqiang Li   +5 more
doaj   +3 more sources

Multi-Rate and Parallel Electromagnetic Transient Simulation Considering Nonlinear Characteristics of a Power System

open access: yesEnergies, 2018
The electromagnetic transient simulation of a power system with nonlinear characteristics is very time-consuming due to numerous inversion calculations of the admittance matrix.
Ji Han   +6 more
doaj   +4 more sources

A Novel Electromagnetic Transient Simulation Method of Large-Scale AC Power System With High Penetrations of DFIG-Based Wind Farms

open access: yesIEEE Access, 2022
With the ever-expanding deployment of renewable energy sources (RESs), the short-time transients have more significant impacts on shaping the characteristics of large power grids.
Yifeng Dong   +6 more
doaj   +3 more sources

MGRIT-Based Multi-Level Parallel-in-Time Electromagnetic Transient Simulation

open access: yesEnergies, 2022
In this paper, we present an approach for multi-level parallel-in-time (PinT) electromagnetic transient (EMT) simulation. We evaluate the approach in the context of power electronics system-level simulation.
Julius Strake   +2 more
doaj   +2 more sources

Study on the Fast Transient Process of Primary Equipment Operation in UHV Fixed Series Capacitors Based on PEEC Method [PDF]

open access: yesSensors
This manuscript proposes a fast transient simulation method based on PEEC to model overvoltage caused by spark gap and disconnecting switch operations in UHV series compensation (FSC).
Baojiang Tian   +7 more
doaj   +2 more sources

An Effective Simulation Analysis of Transient Electromagnetic Multiple Faults [PDF]

open access: yesSensors, 2020
Embedded encryption devices and smart sensors are vulnerable to physical attacks. Due to the continuous shrinking of chip size, laser injection, particle radiation and electromagnetic transient injection are possible methods that introduce transient ...
Liang Dong   +5 more
doaj   +4 more sources

Optimization-enabled electromagnetic transient simulation [PDF]

open access: yesIEEE Power Engineering Society General Meeting, 2004., 2004
Summary form only given. Electromagnetic transient simulation programs (EMTP-type programs) are powerful tools for the study of a wide range of power system transient problems. This paper introduces a novel tool in which an EMTP-type program becomes the objective function evaluator for a non-linear optimization algorithm.
A. GoIe   +3 more
openaire   +3 more sources

Electromagnetic Transient Simulation of Large Power Networks with Modelica [PDF]

open access: yesLinköping Electronic Conference Proceedings, 2021
This paper presents the simulation of electromagnetic transients (EMTs) with Modelica. The advantages and disadvantages are discussed. Simulation performance and accuracy are analyzed through the IEEE 118-bus benchmark which includes detailed models with nonlinearities. The domain-specific simulator EMTP is used for validations and comparisons.
Alireza Masoom   +3 more
openaire   +2 more sources

Experimental study on goaf detection by small loop transient electromagnetic method in complex terrain

open access: yesMeikuang Anquan, 2023
Due to the large terrain fluctuation and drop in Qianshuta well field, the layout of the ground large loop transient electromagnetic method detection device is limited. In order to find out the distribution range of goaf under the second Shanjing line of
Yi MU   +5 more
doaj   +1 more source

Dynamic phasor-based hybrid simulation for multi-inverter grid-connected system

open access: yesGlobal Energy Interconnection, 2023
To realize the efficient transient simulation of a grid-connected power generation system based on multiple inverters, this paper proposes a hybrid simulation method integrating the models of electromagnetic transient and dynamic phasors.
Peng Yang   +4 more
doaj   +1 more source

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