scholarly journals Monitoring Experiment of Electromagnetic Interference Effects Caused by Geomagnetic Storms on Buried Pipelines in China

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 14603-14610 ◽  
Author(s):  
Zebang Yu ◽  
Jianhong Hao ◽  
Lianguang Liu ◽  
Zezhong Wang
Keyword(s):  
Electromagnetic Interference ◽  
Geomagnetic Storms ◽  
Interference Effects ◽  
Buried Pipelines

Characteristics and effects of electromagnetic interference from UHVDC and geomagnetic storms on buried pipelines

2021 ◽  
Vol 125 ◽  
pp. 106494
Author(s):  
Hongzheng Liu ◽  
Qingquan Li ◽  
Haixia Li ◽  
Zhitong Xue ◽  
Mingming Han ◽  
...  
Keyword(s):  
Electromagnetic Interference ◽  
Geomagnetic Storms ◽  
Buried Pipelines

scholarly journals Modelling natural electromagnetic interference in man-made conductors for space weather applications

2016 ◽  
Vol 34 (4) ◽  
pp. 427-436 ◽  
Author(s):  
Larisa Trichtchenko
Keyword(s):  
Exact Solution ◽  
Space Weather ◽  
Electromagnetic Interference ◽  
Geomagnetic Storms ◽  
Electromagnetic Properties ◽  
Electromagnetic Response ◽  
Frequency Range ◽  
Geomagnetically Induced Currents ◽  
Geomagnetic Variations ◽  
Wide Range

Abstract. Power transmission lines above the ground, cables and pipelines in the ground and under the sea, and in general all man-made long grounded conductors are exposed to the variations of the natural electromagnetic field. The resulting currents in the networks (commonly named geomagnetically induced currents, GIC), are produced by the conductive and/or inductive coupling and can compromise or even disrupt system operations and, in extreme cases, cause power blackouts, railway signalling mis-operation, or interfere with pipeline corrosion protection systems. To properly model the GIC in order to mitigate their impacts it is necessary to know the frequency dependence of the response of these systems to the geomagnetic variations which naturally span a wide frequency range. For that, the general equations of the electromagnetic induction in a multi-layered infinitely long cylinder (representing cable, power line wire, rail or pipeline) embedded in uniform media have been solved utilising methods widely used in geophysics. The derived electromagnetic fields and currents include the effects of the electromagnetic properties of each layer and of the different types of the surrounding media. This exact solution then has been used to examine the electromagnetic response of particular samples of long conducting structures to the external electromagnetic wave for a wide range of frequencies. Because the exact solution has a rather complicated structure, simple approximate analytical formulas have been proposed, analysed and compared with the results from the exact model. These approximate formulas show good coincidence in the frequency range spanning from geomagnetic storms (less than mHz) to pulsations (mHz to Hz) to atmospherics (kHz) and above, and can be recommended for use in space weather applications.

scholarly journals OVERVIEW OF ELECTROMAGNETIC INTERFERENCE ISSUES IN AIRCRAFT

2018 ◽  
Vol 6 (2) ◽  
pp. 53-59
Author(s):  
Abhishek Kumar
Keyword(s):  
Wireless Communication ◽  
Electromagnetic Interference ◽  
Communication Systems ◽  
Electromagnetic Induction ◽  
External Source ◽  
Wireless Communication Systems ◽  
Radio Frequency Interference ◽  
Interference Effects ◽  
Electrostatic Coupling ◽  
Modern Era

In the modern era, due to several confliction or uncertainty in the aircraft, Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI) issues occurred, frequently. The main reason behind it several disturbances generated by an external source which imitate wireless circuits with the help of conduction, electrostatic coupling, and electromagnetic induction. These disturbances may decrease the performance of the circuits or sometimes fully stop the operations. Main challenges in EMI are modeling and simulation for modern and future wireless communication systems and networks taking into account nonlinear interference effects. In this paper, overviews of several issues of EMI or RFI are illustrated.

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