Imitative Modelling of Electromagnetic Safety Conditions in Smart Power Supply Systems

Buyakova, N.V.; Zakaryukin, Vasiliy; Kryukov, Andrey

doi:10.2991/iwci-18.2018.4

Cited by 5 publications

(2 citation statements)

References 3 publications

(4 reference statements)

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“…EMS conditions are determined by the levels of EMF strengths [11][12][13][14][15][16][17][18][19][20][21], which are usually calculated at a standard height of 1.8 m [22]. To determine the strengths at the intersection points of OPL and TN, the algorithm [17] is used, which includes the phases shown in fig.…”

Section: Computer Models For Analyzing Ems Conditions At the Intersecmentioning

confidence: 99%

Computer models in problems of ensuring electromagnetic safety

et al. 2020

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In the process of the smart grids formation a special attention is started to be paid to the issues of power engineering facilities safe functioning and reduction in their negative impact on personnel and environment. One of the important factors of such an impact is the generation of significant levels of strength of electromagnetic fields (EMF) by high-voltage overhead power transmission lines (OPL). In the context of the electric power industry digitalization, in order to improve the electromagnetic safety of service personnel, development of methods and means for digital modeling of EMF created by power lines of various designs is required, including traction networks of electrified railways. Computer models providing an adequate determination of the OPL EMF can be implemented on the basis of methods and tools designed for determining the parameters of the modes of electric energy systems in phase coordinates, developed at the Irkutsk State University for Railroads Communications. As an example of using these methods, the solution to the problem of constructing pictures of the distribution of EMF in the space surrounding the intersection of a flexible symmetrical conductor and a 25 kV traction network is given.

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Section: Computer Models For Analyzing Ems Conditions At the Intersecmentioning

confidence: 99%

Computer models in problems of ensuring electromagnetic safety

et al. 2020

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“…This can lead to an increase in strengths and a complication of the EMF spatial structures [4]. In works [2,[15][16][17][18][19][20], a method was proposed for determining the fields of multi-wire systems, including traction net-works and power lines, based on preliminary calculation of the electrical network operating mode, which may contain mul-ti-wire lines, single-phase and three-phase transformers of various types, traction AC networks and moving traction loads. Fazonord software application [15] designed in Irkutsk State Transport university, combines possibilities for modes simulation in phase coordinates and simultaneous calculations of EMF strengths.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Electromagnetic Fields Occurring at Intersection of Traction Networks and Multicircuit Power Lines

et al. 2020

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Traction networks (TN) 25 kV generate higher electromagnetic fields (EMF) with frequency 50 Hz, whose strengths at a standardized height of 1.8 m, as a rule, do not exceed the permissible norms for electrical personnel. In places where railroads routes intersect with high voltage overhead power supply lines (OPL), interference of fields, generated by the traction network and OPL, occurs. This can lead to an increase in strengths and a complication of the EMF spatial structures. The article presents simulation results performed for a complex intersection, while 25 or 2 х 25 kV TN is crossed by a three-circuit 110-220 kV overhead power line at 90 degrees angle. Fazonord software application was used for simulating EMF strengths in points of traction networks and OPL intersection. Based on modeling results the following conclusions have been made: at intersection points of 1х25 kV traction network with a three-chain 110 - 220 kV power transmission line, the electrical field strength does not exceed the value acceptable for electrical personnel and reaches 4.2 kV/m; at the intersection with 2 х 25 kV traction network, this parameter decreases to 2.7 kV/m; the maximum amplitude of the magnetic field at the intersection points increases slightly.

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Determining electromagnetic fields generated by overhead power transmission lines

Zakaryukin

Kryukov

Buyakova

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Under actual operating conditions of electrical networks, it is hard to obtain experimental data that correspond to the maximum levels of the electromagnetic field strengths generated by overhead power transmission lines. Therefore, the analysis of the electromagnetic environment in electric power systems, both at the operated and newly created facilities, is recommended to be performed on the basis of mathematical modeling. The modeling methods and tools developed in IrGUPS and the Fazonord software package implemented on their basis make it possible, after determining the power system mode, to calculate the electromagnetic field strengths generated by multi-wire power transmission lines. In this case, the analyzed lines are considered in close connection with a complex electric power system. To check the adequacy of the simulation, measurements of electric and magnetic field strengths were performed, including comparative calculations for a 110 kV double-circuit line with a ground-wire located within the city. The comparison carried out in rather complex conditions is indicative of the correctness of the method of calculating a multi-wire line electromagnetic field developed in IrGUPS.

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Imitative Modelling of Electromagnetic Safety Conditions in Smart Power Supply Systems

Cited by 5 publications

References 3 publications

Computer models in problems of ensuring electromagnetic safety

Computer models in problems of ensuring electromagnetic safety

Simulation of Electromagnetic Fields Occurring at Intersection of Traction Networks and Multicircuit Power Lines

Determining electromagnetic fields generated by overhead power transmission lines

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