Results 161 to 170 of about 586 (214)
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Computation of electromagnetic transients
Proceedings of the IEEE, 1974Switching operations, faults, and other disturbances produce surges on transmission lines and oscillations in transformer and generator windings. Such electromagnetic transients have primarily been studied with transient network analyzers since the late 1930's. In recent years, digital computer programs have been de-.
H.W. Dommel, W.S. Meyer
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Electromagnetic Transients and Modelling
2019Transients are the norms and the musts of the energy conversion in power electronics systems. Previous research is focused on the large-timescale electromagnetic transient processes, while neglecting short-timescale switching processes and stray parameters. When failure mechanisms of components and the enhancement of the power-conversion capability are
Zhengming Zhao +3 more
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Transient electromagnetic field
European Journal of Physics, 1997The transient and asymptotic solution of the Maxwell equations for a system of two bidimensional particles of opposite charges is studied. Initially the particles are at rest at the same point, then one remains motionless while the other drifts at constant velocity.
C Geronimi +5 more
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Electromagnetic Interference Prediction in Transient Electromagnetic Environment
2007 International Symposium on Electromagnetic Compatibility, 2007This paper presents an approach to predict the interference effects of a transient electromagnetic environment (EME) caused by an aggregate of wideband transmitters on a traditional narrowband victim. Due to the constraint of the narrowband receiver, it is sufficient to evaluate such wideband parameters of transmitter as effective isotropically ...
Yu Zhi-yong, Wang Jiang-feng
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Geophysical Prospecting, 2013
ABSTRACTLake sediments may serve as archives on paleoclimatic fluctuations, geomagnetic field variations and volcanic activities. Lake Holzmaar in Eifel/Germany is a maar lake and its lacustrine sediments provide paleoclimatic proxy data. Therefore, knowledge about the geometry and, especially, about the thickness of the sediments is very important for
L. Mollidor +3 more
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ABSTRACTLake sediments may serve as archives on paleoclimatic fluctuations, geomagnetic field variations and volcanic activities. Lake Holzmaar in Eifel/Germany is a maar lake and its lacustrine sediments provide paleoclimatic proxy data. Therefore, knowledge about the geometry and, especially, about the thickness of the sediments is very important for
L. Mollidor +3 more
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An Efficient Solver for Electromagnetic Transient Simulation
2019In this paper a mesh-free method for electromagnetic transient simulation is presented. This method enables to simulate electromagnetic problems avoiding the use of a regular grid in the discretized model. The proposed method is a particular mesh-free method based on particles, that is no initial regular grid but only an arbitrary particles ...
ALA, Guido +4 more
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An Optimized Method for Transient Electromagnetic Field
2011During the forward transformation of wave-field, two-step optimized algorithm is used for decreasing the number of integral coefficients and sampling in dispersed digital integral, as while as ensure transient electromagnetic field’s calculation precision.
Nannan Zhou, Guoqiang Xue, Xiu Li 0001
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Imaging And Inversion Of Transient Electromagnetic Soundings
8th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1995The success of geophysical investigations associated with environmental problems is to a large extent determined by the density of the measurements and the quality of the interpretations. Many case studies of mapping of raw materials and hydrogeological investigations have confirmed that dense measurements with traditional methods of geoelectrical and ...
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Electromagnetic transient simulation studies
1999This chapter describes some research results of EMTP-based digital studies of SPWM UPFC. Useful insights into UPFC performance have been attained through detailed analysis and simulation of the UPFC internal structure and regulation method. Voltage and power control simulation results have demonstrated the functions of the UPFC.
J. Y. Liu, Y. H. Song
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Electromagnetic transient testing
1994In this brief introduction to the nature of transients and disturbance to power distribution systems it has only been possible to acquaint the reader with the broad categories of effects and show some examples of applicable standards and specifications.
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