MODELING UNDERGROUND CABLE POWER LINE MAGNETIC FIELDS
https://doi.org/10.21285/1814-3520-2018-4-111-121
Abstract
The PURPOSE of the paper is to develop the methods and means for adequate modeling of magnetic fields close to underground cables. METHODS. The analysis of a magnetic field involves the determination of electric power system (EPS) modes based on phase coordinates with the application of element models in the form of meshed equivalent circuits with a fully-meshed topology. These models and methods are implemented in the software package Fazonord-APC ensuring modeling of electric power system (EPS) modes and determination of the strengths of the electromagnetic field generated by overhead or cable transmission lines. RESULTS. The paper presents the calculation results of magnetic fields generated by high-voltage cable lines laid in a trench at the depth of one meter. The line is represented by single-core screened conductors with CLPE insulation. Different methods of conductor screens grounding and connection have been considered. The obtained results demonstrate that different methods of screen grounding do not have any significant effect on the strengths of a magnetic field whereas the strengths of the magnetic field grow a little in the case if the screens are grounded at the sending end of the line and connected at the receiving end. The strength of the magnetic field does not exceed permissible limits set for electrical personnel but exceeds insignificantly the permissible norm for residential territories. CONCLUSION. Using the modeling methods of modes and electromagnetic fields proposed by Irkutsk State Transport University the evaluation methodology of electromagnetic safety conditions close to high voltage cable transmission lines has been implemented.
About the Authors
N. V. Buyakova
Angarsk State Technical University
Russian Federation
Russian Federation
V. P. Zakaryukin
Irkutsk State Transport University
Russian Federation
Russian Federation
A. V. Kryukov
Irkutsk State Transport University; Irkutsk National Research Technical University
Russian Federation
Russian Federation
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Review
For citations:
Buyakova N.V., Zakaryukin V.P., Kryukov A.V. MODELING UNDERGROUND CABLE POWER LINE MAGNETIC FIELDS. Proceedings of Irkutsk State Technical University. 2018;22(4):111-121. (In Russ.) https://doi.org/10.21285/1814-3520-2018-4-111-121
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