Results 21 to 30 of about 15,243,501 (296)
Electromagnetic compatibility studies within smart grid automated substations
, 2014 Switching, fault currents, lightning and other transient phenomena produce electromagnetic fields that may disturb the normal functioning of a high voltage power substation. With the advent of the ‘smart grid’ – where electronic control and communication
Mihai D. Rotaru +5 more
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Modelling of the Electromagnetic Transients on the Grounding Systems
B&H Electrical Engineering, 2018 Abstract This paper deals with the mathematical model based on the transmission line (TL) approach for the simulation of grounding system behaviour at high frequency electromagnetic transients. This paper discusses the possibility of application transmission line approach, when conducting electromagnetic transient analysis of ...
Nedis Dautbašić, Adnan Mujezinović
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Transient Heterogeneous Electromagnetic Simulation With DGTD and Behavioral Macromodel [PDF]
, 2017 A novel hybrid field-circuit simulation method is proposed for transient heterogeneous electromagnetic simulations. It adopts the discontinuous Galerkin time domain (DGTD) method and behavioral macromodel trained by artificial neural network to analyze ...
Yao, He Ming +6 more
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Electromagnetic Transients in Multi-Voltage Transmission Lines during Non-Simultaneous Faults
Energies, 2022 It is vitally important that a transmission network provides a continuity of electricity to end users and that the transmission system operator prioritizes its safety and reliability.
Daria Zychma, Paweł Sowa
doaj +1 more source
Model Reduction of DFIG Wind Turbine System Based on Inner Coupling Analysis
Energies, 2018 The doubly-fed induction generator (DFIG) wind turbine system, which is composed of the wind turbine, generator, rotor-side converter, grid-side converter, and so on, is a typical multi-time scale system. The dynamic processes at different time scales do
Pingping Han +4 more
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Study on 3D forward modeling of transient electromagnetic method for rough media
Meikuang AnquanTo investigate the influence of microscopic spatial structures such as pores and fractures inside media on the diffusion law of transient electromagnetic fields, a 3D forward modeling method for transient electromagnetics applicable to rough media is ...
Zhenglei Wu, Jianhui Li, Weihua Yao
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A Non-Uniform Transmission Line Model of the ±1100 kV UHV Tower
Energies, 2019 The modeling of the Ultra-High Voltage (UHV) tower plays an important role in lightning protection analysis of transmission lines because the model used will directly affect the reliability of the results.
Xianshan Guo +3 more
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Non-uniform Transmission Line Model of Offshore Wind Turbine Tower
Zhongguo dianli, 2020 The modeling of wind turbine tower is an important part of the research on lightning protection of offshore wind turbines. The establishment of its model has an important impact on the analysis results.
Yuanjian SONG +3 more
doaj +1 more source
MachinesBecause of their transient working mode and end effects, it is particularly difficult to compute high-frequency electromagnetic forces on linear induction motors under PWM current simulation.
Mingke Li +4 more
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DAE Index Reduction for Electromagnetic Transient Models
CoRRElectromagnetic transient (EMT) models are index-2 differential-algebraic equations when they include certain topologies and are formulated with modified nodal analysis. Such systems are difficult to numerically integrate, a challenge that is currently addressed by applying model approximations or reformulating with index-reduction algorithms.
Fiona Majeau +3 more
openaire +2 more sources