Results 11 to 20 of about 20,169 (264)
Application of Transient Electromagnetic Method in Detection of Goaf
To study the method of using transient electromagnetic method to detect the goaf of the integrated mine, on the basis of studying the principle of transient electromagnetic method and investigating the background noise, the goaf in the industry square ...
SUN Yingfeng, LUO Xiao, GAO Yirui, WANG Pengpeng, DONG Chuanlong, HE Yongchang
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Hybrid Simulation for Large-Scale AC/DC Power System by Serial Interaction Process
Electromechanical transient (EMT) and transient stability hybrid simulations can make full use of their fast-solving ability and high-precision computing ability to accurately simulate the dynamic characteristics of large-scale AC/DC systems.
Song Zhang +3 more
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TACS enhancements for the Electromagnetic Transient Program [PDF]
Transient analysis of control systems (TACS) of the electromagnetic transient program (EMTP) has been enhanced in many ways. There are major changes in methods of ordering components to minimize the introduction of time step and history term errors. Initialization algorithms have been greatly enhanced to allow multiple frequency initialization.
R.H. Lasseter, J. Zhou
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Electromagnetic transient analysing of neutral bus in UHVDC converter station
Transient processes at neutral bus of ultra-high value direct current (UHVDC) converter station received insufficient attention, because of the lower amplitude compare to poles.
Yunchao Wang +7 more
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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
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ELECTROMAGNETIC PARAMETERS OF PLANE CONTACTS UNDER SHORT CIRCUIT CONDITIONS
Investigations of electromagnetic parameters of various aluminium plane contacts under short circuit conditions have been carried out. It has been revealed that while calculating electromagnetic parameters of the above-mentioned contacts under transient ...
A. N. Gerasimovich +4 more
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Transient analysis of power loss density with time-harmonic electromagnetic waves in Debye media
Due to the complex permittivity, it is difficult to directly clarify the transient mechanism between electromagnetic waves and Debye media. To overcome the above problem, the temporal relationship between the electromagnetic waves and permittivity is ...
Jiaqi Zhong +3 more
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The electromechanical-electromagnetism hybrid simulation technology combines the advantages of electromechanical transient simulation and electromagnetic transient simulation.
Fengling Fang
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System-level electromagnetic transient (EMT) simulation of large-scale power converters with high-order nonlinear semiconductor switch models remains a challenge albeit it is essential for design preview. In this work, a multi-layer hierarchical modeling
Ning Lin, Ruimin Zhu, Venkata Dinavahi
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Transient electromagnetic method has shown great effectiveness in detecting water channels. However, conventional methods for detecting the development of water-conducting fracture zones are not suitable due to environmental influences.
Qinghua LIANG +5 more
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