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Journal articles on the topic 'Transient electromagnetic'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

E., I. Baida, V. Klymenko B., G. Pantelyat Michael, A. Yelanskyi Yu., Trichet D., and Wasselynck G. "CHALLENGES OF DYNAMIC SIMULATION OF HIGH-SPEED ELECTROMAGNETIC VALVES OF GAS DISTRIBUTION DEVICES." Electrical engineering & electromechanics, no. 5 (October 27, 2020): 3–11. https://doi.org/10.20998/2074-272X.2020.5.01.

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<strong><em>High-speed electromagnetic valves of gas distribution devices are used in modern missile and space technology as jet micro-motors of the executive elements of missile stabilization systems, as well as to control the movement of spacecrafts in space. The problem of creating such valves which are simple and reliable in the operation is relevant. In this work, it is proposed at the development and design stage to perform computer modelling of mutually coupled electromechanical processes, such as: distribution of transient electromagnetic field, transients in an electric circuit, and m

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2

Xia, Cheng Jun, Guo Kai Liang, and Hao Yu Huang. "An Investigation of the Negative Resistance in Network Reduction and Electromagnetic Transient Modelling." Advanced Materials Research 1008-1009 (August 2014): 480–84. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.480.

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It becomes common practice to reduce a large-scale power grid into a simplified one using transient stability simulator and have it modeled on electromagnetic transients programs. However, the procedure of network reduction may produce negative resistance, which may result in some problems in electromagnetic transient simulation. This paper firstly demonstrates that the negative resistance will probably lead to numerical instability in electromagnetic transient simulation. And then the forming mechanism of the negative resistance during network reduction using Gaussian Elimination is revealed.

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3

Geronimi, C., F. Bouchut, M. R. Feix, H. Ghalila, M. Valentini, and J. M. Buzzi. "Transient electromagnetic field." European Journal of Physics 18, no. 2 (1997): 102–7. http://dx.doi.org/10.1088/0143-0807/18/2/009.

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4

Tang, Fan, Guo Liang Su, Dong Xiang Li, and Yu Hong Wang. "Electromagnetic - Electromechanical Transient Hybrid Simulation of Deyang-Baoji HVDC System Based on ADPSS." Advanced Materials Research 805-806 (September 2013): 935–40. http://dx.doi.org/10.4028/www.scientific.net/amr.805-806.935.

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three kinds of digital programs used in power system simulation are summarized in this paper. The electromagnetic and electromechanical transient simulation software ADPSS is introduced. Electromagnetic transient simulation, electromechanical transient simulation and electromagnetic-electromechanical transient hybrid simulation are performed respectively on Deyang-Baoji ±500KV HVDC system. The simulation result shows that the electromagnetic-electromechanical transient hybrid simulation has the advantage of electromagnetic transient simulation and electromechanical transient simulation. It can

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5

Zychma, Daria, and Paweł Sowa. "Electromagnetic Transients in Multi-Voltage Transmission Lines during Non-Simultaneous Faults." Energies 15, no. 3 (2022): 1046. http://dx.doi.org/10.3390/en15031046.

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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. This article presents the possibilities of using multi-track overhead lines with varying levels of rated voltage, run on a common support structure. This solution would ensure safe operation of the system, reduce the area used for the construction of new overhead lines, and, at the same time increase the transmission network capacity. This article focuses on the method of modeling overhead lines for the analysis

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6

Guillén, Daniel, Gina Idárraga-Ospina, and Camilo Cortes. "A New Adaptive Mother Wavelet for Electromagnetic Transient Analysis." Journal of Electrical Engineering 67, no. 1 (2016): 48–55. http://dx.doi.org/10.1515/jee-2016-0007.

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Abstract Wavelet Transform (WT) is a powerful technique of signal processing, its applications in power systems have been increasing to evaluate power system conditions, such as faults, switching transients, power quality issues, among others. Electromagnetic transients in power systems are due to changes in the network configuration, producing non-periodic signals, which have to be identified to avoid power outages in normal operation or transient conditions. In this paper a methodology to develop a new adaptive mother wavelet for electromagnetic transient analysis is proposed. Classification

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7

Tang, Jun. "Application of Wavelet Analysis in Transient Electromagnetic Sounding." Advanced Materials Research 346 (September 2011): 757–63. http://dx.doi.org/10.4028/www.scientific.net/amr.346.757.

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On the basis of explaining the basis theory on transient electromagnetic sounding, wavelet theory and imaging principle of differential conductivity for transient electromagnetic sounding data, this thesis proposes rapid imaging technology of electromagnetic sounding based on wavelet analysis, describes the characteristics of noises under wavelet decomposition, and employs wavelet packet analysis to eliminate noise of signals, at last, introduces wavelet analysis into transient electromagnetic sounding on the platform of MATLAB wavelet function toolbox and deals with differential conductivity

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8

Ivanov, Georgi, Valentin Mateev, and Iliana Marinova. "Dynamic characteristics of electromagnetic contactor with HTS-2G coil in liquid nitrogen." E3S Web of Conferences 551 (2024): 03004. http://dx.doi.org/10.1051/e3sconf/202455103004.

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In this paper is presented experimental investigation of dynamic characteristics of electromagnetic contactor with Hightemperature superconductive (HTS) coil in liquid nitrogen. Transient characteristics of armature dynamics and current during electromagnet switching are presented and analysed. HTS coil could provide reduced electric energy consumption in long term operation by active coil resistance reduction, improving this way electromagnetic contactor energy efficiency. Estimation of electromagnetic contactor with HTS-2G coil energy consumption is also presented.

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9

Tykhovod, Sergii, and Ihor Orlovskyi. "Accelerated Modeling of Transients in Electromagnetic Devices Based on Magnetoelectric Substitution Circuits." Energies 18, no. 2 (2025): 310. https://doi.org/10.3390/en18020310.

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During switching in electrical systems, transient electromagnetic processes occur. The resulting dangerous current surges are best studied by computer simulation. However, the time required for computer simulation of such processes is significant for complex electromagnetic devices, which is undesirable. The use of spectral methods can significantly speed up the calculation of transient processes and ensure high accuracy. At present, we are not aware of publications showing the use of spectral methods for calculating transient processes in electromagnetic devices containing ferromagnetic cores

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10

Mollidor, L., B. Tezkan, R. Bergers, and J. Löhken. "Float-transient electromagnetic method: in-loop transient electromagnetic measurements on Lake Holzmaar, Germany." Geophysical Prospecting 61, no. 5 (2013): 1056–64. http://dx.doi.org/10.1111/1365-2478.12025.

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11

Wang, Guo Fu, Peng Deng, Fa Quan Zhang, and Jin Cai Ye. "Noise Reduction of the Transient Electromagnetic Weak Signal under Strong Noise Based on Power Detection of EMD." Applied Mechanics and Materials 110-116 (October 2011): 1606–12. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.1606.

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The method of Transient Electromagnetic(TEM) detection is widely applied to the field of coal mine and oil exploration. But since Transient Electromagnetic signal is a non-stationary , nonlinear , weak signal under the background of heavy noise , traditional method which is based on the signal superposition is only suited to the signal of the superficial layer , it can not fetch the weak signal of the deep layer. noise reduction of the transient electromagnetic weak signal under heavy noise based on power detection of EMD decomposition is presented in this paper. This method does not need prio

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12

Liu, Yaoning, Shucai Liu, Maofei Li, Xinming Liu, and Weihong Guo. "Influence of metal roadway supports on transient electromagnetic detection in mines." Earth Sciences Research Journal 25, no. 1 (2021): 109–14. http://dx.doi.org/10.15446/esrj.v25n1.80156.

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To study the influence of metal supports in roadways on the detection of mines using the transient electromagnetic method, authors treated metal supports including anchor nets as a thin metal layer. According to the finite differences principle, the characteristics of the full-space transient electromagnetic response under the thin metal layer’s influence were calculated using a non-uniform grid. The thin metal layer’s presence slowed the electromagnetic field’s diffusion rate and hindered the overall diffusion. The transient electromagnetic response curve observed under the thin metal layer’s

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13

QU Fang, 曲放, and 翁爱华 WENG Ai-hua. "Transient Electromagnetic Method and Application." OME Information 28, no. 12 (2011): 82–88. http://dx.doi.org/10.3788/omei20112812.0082.

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14

Peacock, J., and A. King. "Central loop transient electromagnetic soundings." Exploration Geophysics 16, no. 2-3 (1985): 261–65. http://dx.doi.org/10.1071/eg985261.

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15

Wiggins, C. M., D. E. Thomas, F. S. Nickel, T. M. Salas, and S. E. Wright. "Transient electromagnetic interference in substations." IEEE Transactions on Power Delivery 9, no. 4 (1994): 1869–84. http://dx.doi.org/10.1109/61.329520.

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16

叶, 英. "Transient Electromagnetic Structure Radar Research." Advances in Geosciences 09, no. 04 (2019): 218–29. http://dx.doi.org/10.12677/ag.2019.94025.

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17

Adhidjaja, Jopie I., Gerald W. Hohmann, and Michael L. Oristaglio. "Two‐dimensional transient electromagnetic responses." GEOPHYSICS 50, no. 12 (1985): 2849–61. http://dx.doi.org/10.1190/1.1441904.

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The time‐domain electromagnetic (TEM) modeling method of Oristaglio and Hohmann is reformulated here in terms of the secondary field. This finite‐difference method gives a direct, explicit time‐domain solution for a two‐dimensional body in a conductive earth by advancing the field in time with DuFort‐Frankel time‐differencing. As a result, solving for the secondary field, defined as the difference between the total field and field of a half‐space, is not only more efficient but is also simpler and eliminates several problems inherent in the solution for the total field. For example, because th

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18

Fitterman, David V., and Mark T. Stewart. "Transient electromagnetic sounding for groundwater." GEOPHYSICS 51, no. 4 (1986): 995–1005. http://dx.doi.org/10.1190/1.1442158.

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The feasibility of using the transient electromagnetic sounding (TS or TDEM) method for groundwater exploration can be studied by means of numerical models. As examples of its applicability to groundwater exploration, we study four groundwater exploration problems: (1) mapping of alluvial fill and gravel zones over bedrock; (2) mapping of sand and gravel lenses in till; (3) detection of salt or brackish water interfaces in freshwater aquifers; and (4) determination of hydrostratigraphy. These groundwater problems require determination of the depth to bedrock; location of resistive, high‐porosi

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19

Pandey, Amritanshu. "Circuit-Based Electromagnetic Transient Simulation." Foundations and Trends® in Electric Energy Systems 6, no. 2 (2023): 83–118. http://dx.doi.org/10.1561/3100000038.

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20

Farquharson, Colin G., Xiangyun Hu, Qinghua Huang, et al. "Advances in transient electromagnetic methods." Journal of Geophysics and Engineering 20, no. 6 (2023): 1305–7. http://dx.doi.org/10.1093/jge/gxad089.

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21

Yang, Yang, Fei Yang, Bo Wang, Wangping Qian, Ying Wang, and Yuanbin Zuo. "Technical Analysis and Application Prospects of Magnetic Source Transient Electromagnetic Coil Devices in Hydrogeological Survey of Mining Area." Water 17, no. 2 (2025): 171. https://doi.org/10.3390/w17020171.

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The transient electromagnetic method (TEM) has a wide range of applications in the hydrogeological exploration of mining engineering. This method is highly sensitive to groundwater responses and provides reliable data for the prevention of water-related disasters, such as sudden water surges and gushes. However, there are currently a lack of comprehensive and systematic analyses and summaries regarding the characteristics of magnetic source transient electromagnetic coil devices. Based on the fixed characteristics of the field source, this paper categorizes magnetic source transient electromag

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22

Dong, Hua Ying, Li Ze Xu, Gui Shu Liang, Xin Liu, and Xu Cheng. "Wide-Band Modeling of Grounding Grid Based on the Fractional Order Differential Theory." Advanced Materials Research 860-863 (December 2013): 2292–95. http://dx.doi.org/10.4028/www.scientific.net/amr.860-863.2292.

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Research on the wide-band modelling method of the grounding grid and the analysis of the electromagnetic transients on the grounding grid has significant practical meaning on the engineering problems, e.g. overvoltage protection, insulation coordination and electromagnetic interference and the increasing levels of capacity in the power and communication systems. This paper presents strategies which establish the equivalent circuit for computing the transient performance of grounding grid base on fractional order differential theory, which takes into account the fractional frequency characteris

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23

Zhou, Lei, LiangJun Yan, Osborne Kachaje, Xingbing Xie, Yurong Mao, and Haoran Zhang. "The Simulation of Transient Electromagnetic Based on Time-domain IP Model." Journal of Environmental and Engineering Geophysics 24, no. 1 (2019): 159–62. http://dx.doi.org/10.2113/jeeg24.1.159.

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When transient electromagnetic investigation methods are carried out in the field, the measured data often contain both the induced polarization (IP) effect and the electromagnetic effect. In order to study the IP effect in the transient electromagnetic response, many researchers first calculate the electromagnetic field which considers the IP effect by replacing traditional resistivity with complex resistivity of the Cole-Cole model in the frequency domain. After the forward modeling calculation of the electromagnetic field in the frequency domain that considers the IP effect, the transient e

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24

Qi, Zhipeng, Xiu Li, Yingying Zhang, He Li, and Naiquan Sun. "An Array Source TEM Apparent Resistivity Conversion and Differential Conductivity Imaging Method and its Potential Applications." Journal of Environmental and Engineering Geophysics 24, no. 4 (2019): 579–92. http://dx.doi.org/10.2113/jeeg24.04.579.

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In this study, for the purpose of accurately detecting fissured disaster sources and diversion channels during tunnel construction, an array source transient electromagnetic device is proposed. Then, an apparent resistance conversion method and an approximate inversion algorithm for the proposed transient electromagnetic device are presented. First, a finite-difference time-domain (FDTD) method is used for the forward modeling of the proposed array source transient electromagnetic device, and the electromagnetic responses of the cracks and water-conducting channels are obtained. When compared

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25

Zhang, Lei, Qing Ming Duan, Hao Sun, et al. "Design of Transient Electromagnetic Transmitter Based on FPGA." Applied Mechanics and Materials 496-500 (January 2014): 630–33. http://dx.doi.org/10.4028/www.scientific.net/amm.496-500.630.

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Transient electromagnetic transmitter is a part of the transient electromagnetic detection system. In the aspect of short turn-off time for high-power current, there are still many problems to be solved urgently. This paper put forward a design scheme of transient electromagnetic transmitter, amplified the control signal with triode, and put forward a kind of passive constant voltage clamping absorbing circuit, which made the turn-off time shorter and the linearity of the emission currents lagging edge higher. This transient electromagnetic transmitter system is portable and easy to operate. T

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26

Yu 于, Weixiang 伟翔, John J. Ruan, Michael Eracleous, et al. "Contaminating Electromagnetic Transients in LISA Gravitational-wave Localization Volumes. I. The Intrinsic Rates." Astrophysical Journal 981, no. 2 (2025): 141. https://doi.org/10.3847/1538-4357/adb283.

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Abstract The Laser Interferometer Space Antenna (LISA) will soon detect gravitational waves (GWs) emitted by massive black hole (MBH) mergers. Some theoretical models have predicted transient electromagnetic (EM) emission from these mergers, enabling the association of LISA GW sources with their EM counterparts via telescope follow-up. However, the number of unrelated EM transients that might contaminate telescope searches for the true transient counterparts of LISA MBH mergers is unknown. We investigate the expected numbers of unrelated EM transients that will coincide with simulated LISA loc

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27

Bo, Yang, Wang Qian, Xu Zhengyu, and Bao Minghui. "Research on Transient Electromagnetic Detection Method for Substation Site Selection." E3S Web of Conferences 194 (2020): 03014. http://dx.doi.org/10.1051/e3sconf/202019403014.

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A transient electromagnetic detection method for site selection of substation grounding is proposed in this paper. And taking the fault detection experiment of transmission lines in a certain area of China as an example, the transient electromagnetic technology is used to obtain high-quality images reflecting the development trend and distribution of geological faults. The results show that the transient electromagnetic method is a convenient and effective way for substation site selection.

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28

Guo, Changang, Tingjiang Tan, Liuzhu Ma, Shuai Chang, Yiding Chen, and Ke Zhao. "Response and Application of Full-Space Numerical Simulation Based on Finite Element Method for Transient Electromagnetic Advanced Detection of Mine Water." Sustainability 14, no. 22 (2022): 15024. http://dx.doi.org/10.3390/su142215024.

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The issue of water hazards has led to the restriction of safe and efficient coal mine production in China. The transient electromagnetic method (TEM) is one of the most effective means of detecting the hidden dangers of water hazards in coal mines. However, the current understanding of the whole-space transient electromagnetic response of mine water is only on the general law due to the late start of the forward research. Therefore, this paper established multiple sets of simulation models in the whole area in order to study the rules and factors of transient electromagnetic responses. Subsequ

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LIU, YING, and CHI XIE. "IMAGE RECOVERY OF TRANSIENT VOLTAGE BASED ON REAL-TIME MONITORING." Modern Physics Letters B 22, no. 05 (2008): 353–58. http://dx.doi.org/10.1142/s0217984908014821.

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In modern high-energy physics, a powerful electromagnetic field must be supplied for some elementary particles to be accelerated by passing through the region of high-energy physics fields. The electric current and high voltage producing the powerful electromagnetic field are very important to high-energy accelerators, but the insulation of electromagnetic coils in the accelerators suffers from electric damage under powerful electricity. Epecially, it may be stricken by transient overvoltage from the a.c. generator or electric network at any time. For the insulation problem of electromagnetic

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30

Meng, Lu Bo, Tian Bin Li, and Zheng Duan. "Numerical Simulation of Transient Electromagnetic Response of Unfavorable Geological Body in Tunnel." Applied Mechanics and Materials 90-93 (September 2011): 37–40. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.37.

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To investigate the transient electromagnetic method of response characteristics in the tunnel geological prediction, the finite element numerical simulation of unfavorable geological body of different location, different resistivity sizes, different shapes, and different volume size were carried out by ANSYS finite element software. The results show that secondary electromagnetic field of different location of unfavorable geological body have same decay rate, when detection distance from 30m to 70m, transient electromagnetic responses are strongest, followed distance from 10m to 30m and from 7

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31

Wang, Hong Ming, Bo Feng Yang, Bang Min Song, and Yi Nan Zhao. "Transient Simulation of Electromagnetic Field during EMCC Process." Applied Mechanics and Materials 66-68 (July 2011): 189–93. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.189.

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A transient analysis mathematic model was established via ANSYS. The variation laws of magnetic induction density, induced eddy current and electromagnetic force in molten steel changing with the high frequency sine exciting current were investigated. The results indicate that the magnetic induction density and induced eddy current in molten steel vary at the same frequency as exciting current. Moreover, the variations of magnetic induction density and induced eddy current are not in step with exciting current. This proves that the high frequency electromagnetic field in mold and steel is not

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32

Xue, Ke, Le Cao, and GuoChu Chen. "Power system solution based on root matching method in FPGA environments." Journal of Physics: Conference Series 2195, no. 1 (2022): 012029. http://dx.doi.org/10.1088/1742-6596/2195/1/012029.

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Abstract Digital electromagnetic transient simulation is an important means to analyze the operation, planning and control of power systems. Numerical integration algorithm is the core of electromagnetic transient simulation analysis. By analyzing the existing electromagnetic transient simulation methods of power systems, it is difficult to solve the numerical oscillation and decoupling problems, and the root matching method is proposed to solve such problems. From the perspectives of basic component modeling methods and basic simulation algorithms, the disadvantages of mainstream algorithms i

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33

Gao, Chong, and Youli Feng. "Application of Transient Electromagnetic in Detection of Water Accumulation in Broad Coal Mine." Engineering and Technology Journal 06, no. 08 (2021): 981–84. https://doi.org/10.47191/etj/v6i8.01.

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In view of the problem of serious water accumulation and frequent accidents in the coal mine mining area, the distribution range of Yuzhou Shenhuo Kuanfa Mining Coal (hereinafter referred to as Kuanfa Coal Mine) is detected by transient electromagnetic method. The transient electromagnetic emission wire frame is 480m × 480m, frequency is 8Hz, power supply current is 16A. The research conclusion preliminarily determines that the transient electromagnetic and controllable source audio earth electromagnetic method is applicable for the exploration of the mined space area in Yuzhou mining ar

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Yang, Zhichao, Qian Li, Xin Guo, et al. "Cable Coupling Characteristics of Wireless Network Convergence Nodes by Transient Electromagnetic Fields in Intelligent Substations." Symmetry 15, no. 5 (2023): 959. http://dx.doi.org/10.3390/sym15050959.

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Switching operations in intelligent substations generate a wide range of extremely strong and asymmetric transient spatial electromagnetic fields, and this complex transient electromagnetic field can have a coupling effect with the wireless network sink node equipment cables. We conducted a study on the networking method of wireless network equipment in smart substations and analyzed the types of sink node cables used. In the GIS room of the 110 kV GIS smart substation, the transient spatial electromagnetic field generated by switching operation and the transient induced current of the sink no

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35

Zahrebaiev, Mykhailo, Mykhailo Zvonetskiy, Oleg Ryazantsev, and Oleksandr Sianov. "INFLUENCE OF ELECTROMAGNETIC PARAMETERS OF AN ASYNCHRONOUS MOTOR WITH A SHORT-CIRCUITED CAGE ON TRANSIENT PROCESSES." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 45 (2024): 136–45. https://doi.org/10.31319/2519-2884.45.2024.15.

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The article discusses the electromagnetic parameters of an asynchronous motor (AD) with a short-circuited cage of general industrial application for the study of transient processes in an electric drive. The main purpose of the study is to determine the transient characteristics of AD by comparing parameters with reference data and calculations in the ANSYS Maxwell RMxprt program. The parameters defined in the program were found to provide more accurate results for transients. The comparative analysis showed that the active resistance of the stator winding coincides with the reference value, w

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36

Deutschmann, Bernd, Etienne Sicard, and Sonia Ben Dhia. "On the Effects of Transient Electromagnetic Interference on Integrated Circuits." EDFA Technical Articles 8, no. 4 (2006): 16–24. http://dx.doi.org/10.31399/asm.edfa.2006-4.p016.

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Abstract The susceptibility of ICs to electromagnetic interference is a growing concern for both designers and failure analysts. This article discusses the causes and effects of transient electromagnetic interference and the factors that influence electromagnetic susceptibility. It explains how to determine susceptibility based on transient pulse testing and presents and interprets the test results of three automotive ICs.

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Li, He, Zhipeng Qi, Xiu Li, and Yingying Zhang. "Numerical modelling analysis of multi-source semi-airborne TEM systems using a TFEM." Journal of Geophysics and Engineering 17, no. 3 (2020): 399–410. http://dx.doi.org/10.1093/jge/gxz119.

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Abstract Traditional transient electromagnetic methods use single sources for excitation and extract the characteristics of underground media by improving interpretation technology. This study focused the improvements of transient electromagnetic interpretation using complex source technology. A time-domain vector finite element method (TFEM) was applied on three-dimensional forward modelling of semi-airborne transient electromagnetic (TEM) with multiple electrical sources, and it analysed the characteristics of fields with multiple sources. The study used a model of an isolated anomalous body

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38

Qian, Wangping, Yikang Xu, Zhenyuan Gu, et al. "Characterisation of transient electromagnetic signals during fixed interference sources in tunnel structure." Mathematical Biosciences and Engineering 18, no. 5 (2021): 6907–25. http://dx.doi.org/10.3934/mbe.2021343.

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<abstract> <p>The detection effect of the transient electromagnetic method is ambiguous in engineering applications due to the existence of interference sources, so explaining the influence of these fixed interference sources on is crucial. In this paper, the response characterisation of transient electromagnetic signals of fixed interference sources are thoroughly investigated. First, the secondary field generated by these interference sources is analyzed, and a typical fixed interference source is calculated. Then, a sensitivity analysis of the transient electromagnetic response

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Zhao, Shu Tao, Jian Feng Ren, Dan Jiang, and Yu Tao Xu. "Simulation and Analysis of Rectifier Circuit Based on Double Closed-Loop Vector Control Method." Applied Mechanics and Materials 687-691 (November 2014): 3346–49. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.3346.

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Pulse width modulation (PWM) technology based on rotating coordinate transform is a new type of rectifier control method. Through the electromagnetic transient process of the analysis of the rectifier circuit we can verify the accuracy of this control method. Therefore, this paper first analyzed electromagnetic transient process of the rectifier circuit. By changing the phase and amplitude of voltage to realize the active and reactive power decoupling control independently. Than,it built the simulation model of rectifier circuit with the electromagnetic transient analysis software PSCAD. This

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40

叶, 英. "Research on Transient Electromagnetic Road Radar." Advances in Geosciences 09, no. 06 (2019): 529–41. http://dx.doi.org/10.12677/ag.2019.96057.

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41

Kristensson, G. "Transient electromagnetic wave propagation in waveguides." Journal of Electromagnetic Waves and Applications 9, no. 5-6 (1995): 645–71. http://dx.doi.org/10.1163/156939395x00866.

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42

Christensen, Niels B. "Sensitivity functions of transient electromagnetic methods." GEOPHYSICS 79, no. 4 (2014): E167—E182. http://dx.doi.org/10.1190/geo2013-0364.1.

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Any geophysical measurement is a filter through which the distribution of a certain physical parameter in the subsurface is seen, and the sensitivity function is a characteristic of the method that reveals the nature of this filter. Insight into the structural pattern of the sensitivity function pertaining to a certain transmitter-receiver configuration provides the geophysicist with an image that allows an immediate qualitative understanding of the characteristics of the method. The assets and shortcomings of different measuring configurations can be discussed and understood, and the sensitiv

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43

Harada, Koichiro, Kazushige Wada, and Masami Fukuda. "Permafrost mapping by transient electromagnetic method." Permafrost and Periglacial Processes 11, no. 1 (2000): 71–84. http://dx.doi.org/10.1002/(sici)1099-1530(200001/03)11:1<71::aid-ppp339>3.0.co;2-#.

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44

Zhdanov, M. S., M. A. Frenkel, and A. I. Katsevich. "Interpolation method for transient electromagnetic fields." Il Nuovo Cimento C 12, no. 5 (1989): 555–65. http://dx.doi.org/10.1007/bf02508015.

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45

Zhen, Dayong, Kang Liu, Siwei Zhao, and Chao Zhou. "Application Comparison of Different Transient Electromagnetic Devices in Water Exploration of Tunnel Advanced Geological Prediction." Journal of Physics: Conference Series 2651, no. 1 (2023): 012099. http://dx.doi.org/10.1088/1742-6596/2651/1/012099.

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Abstract Detecting the possibility of water inrush in front of tunnel face is always the key of tunnel advanced geological prediction. Because of its sensitivity to groundwater, transient electromagnetic method is gradually being used in water exploration of tunnel advanced geological prediction. However, the current transient electromagnetic theory is established based on the half-space environment. In order to adapt to the detection work in the full-space environment such as tunnels, different transient electromagnetic devices have been improved. The effectiveness of these improved devices s

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Ghania, Samy M. "Transient Electromagnetic Fields Calculation around Transmission Lines using FDTD." Engineering, Technology & Applied Science Research 13, no. 6 (2023): 12253–57. http://dx.doi.org/10.48084/etasr.6552.

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For proper design of transmission and distribution insulation systems, it is necessary to fully clarify the characteristics of lightning phenomena. In this study, two typical power transmission lines, 500 and 220 kV, were modeled to compute the lightning electromagnetic fields around the transmission lines. The lightning electromagnetic fields around the different power lines were calculated using the Finite Difference Time Domain (FDTD) method with Maxwell's equations. Two selected zones were used to capture electromagnetic fields during lightning strikes. The first zone was around the insula

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Lebedka, S. M., M. V. Petrovskyi, and I. M. Diahovchenko. "DEVELOPMENT OF A MATHEMATICAL MODEL OF TRANSITIONAL PROCESSES IN THE ELECTRICAL NETWORK IN PHASE COORDINATES." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (1) (December 30, 2020): 56–60. http://dx.doi.org/10.20998/2224-0349.2020.01.08.

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Distribution electrical networks of great length are characterized by a high order of the system of equations of electromagnetic transients. To improve the efficiency of modelling such networks, it is necessary to develop formalized procedures that provide automation of both the solution and the formation of systems of equations using modern computer technology. To simplify the development of mathematical models, transformations are used to move from a real three-phase network to other coordinate systems, but this is achieved at the expense of additional restrictions. To solve the problems of

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Wang, Yan Ting, Jing Hong Zheng, Xiao Yu Wang, Shou Zhen Zhu, and Hong Bo Zhu. "Investigation of Switching Transients between Operation Modes for Inverter-Based Microgrid." Advanced Materials Research 433-440 (January 2012): 7381–86. http://dx.doi.org/10.4028/www.scientific.net/amr.433-440.7381.

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This paper investigates the characteristics of the switching transients between the grid-connected and the autonomous modes for an inverter-based microgrid. The impact of the microgrid components including system line, load and inverter controller on the switching transients is analyzed through electromagnetic transient simulations. A soft switching scheme is also proposed in this paper to improve the microgrid switching performance.

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Лободзинський, В. Ю., та В. І. Чибеліс. "Математична модель трифазної лінії з розподіленими параметрами при електромагнітних перехідних процесах". Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 124, № 4 (2018): 96–102. http://dx.doi.org/10.30857/1813-6796.2018.4.10.

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Development of a mathematical model of a three-phase line with distributed parameters at electromagnetic transients, which arise at different commutations for the calculation of transition modes at the design stage. The work is based on differential equations of chain state, limiting and initial conditions for ensuring the solution of practical problems. A mathematical model has been developed for the calculation of electromagnetic transients in three-phase lines, which includes a system of partial differential equations, limit and initial conditions, for the study of a wide class of practical

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Hördt, Andreas, and Carsten Scholl. "The effect of local distortions on time‐domain electromagnetic measurements." GEOPHYSICS 69, no. 1 (2004): 87–96. http://dx.doi.org/10.1190/1.1649378.

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Based on the time‐domain integral equation, we derive expressions for the effect of an anomalous body close to the receiver or close to the transmitter on transient electromagnetic measurements. Similar to magnetotellurics, the distortion of electric fields at late times can be described by a constant distortion tensor relating the secondary electric field to the primary field components that would be obtained in the absence of the body. The distortion of a single electric field transient is a static shift only for particular configurations over a layered half‐space. In the general case, the p

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