Results 11 to 20 of about 1,078,078 (300)

Application of Transient Electromagnetic Method in Detection of Goaf

Meikuang Anquan, 2020
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
doaj   +2 more sources

Electromagnetic transient analysing of neutral bus in UHVDC converter station

The Journal of Engineering, 2019
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, Zhanqing Yu, Ya Mou, Fan Liu, Shijun Xie, Chen Shuiming, Rong Zeng, Jingliang He   +7 more
doaj   +2 more sources

Adaptive transient solution of nonuniform multiconductor transmission lines using wavelets [PDF]

, 2000
—This paper presents a highly adaptive algorithm for the transient simulation of nonuniform interconnects loaded with arbitrary nonlinear and dynamic terminations.
S. Grivet-talocia, Grivet-Talocia, S., GRIVET TALOCIA, STEFANO   +2 more
core   +1 more source

TACS enhancements for the Electromagnetic Transient Program [PDF]

Conference Proceedings Power Industry Computer Application Conference, 1993
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
openaire   +1 more source

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

Frontiers 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, Kaibin Lin, Wu Lu, Ranran Ding, Bingjie Wu, Mingqi Cai, Saman Nazarian, Wenbin Zhao, Jingbo Li, Dong Huang   +9 more
doaj   +1 more source

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, Tarmizi, A.I., Rotaru, M., Sykulski, J.K., A. I. Tarmizi, Jan K. Sykulski   +5 more
core   +2 more sources

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

Frontiers 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, Yong Zhu, Fanxing Zen, Shengzhi Zhou, Yuhang Chen   +4 more
doaj   +1 more source

Transient analysis of power loss density with time-harmonic electromagnetic waves in Debye media

Royal Society Open Science, 2021
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, Shan Liang, Yong Chen, Jiajia Tan   +3 more
doaj   +1 more source

Research on the development height of water-conducting fracture zone in overburden rock based on transient electromagnetic method in hole

Meikuang Anquan
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, Xiangjun DING, Guangliang LIU, Zhicheng LIU, Chunyuan WANG, Huan ZHANG   +5 more
doaj   +1 more source

Hierarchical Device-Level Modular Multilevel Converter Modeling for Parallel and Heterogeneous Transient Simulation of HVDC Systems

IEEE Open Journal of Power Electronics, 2020
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
doaj   +1 more source