Modeling of electromagnetic effects of six-phase power lines on pipelines
https://doi.org/10.30724/1998-9903-2024-26-6-108-120
Abstract
THE PURPOSE. Development of digital models for calculating induced voltages on a pipeline created by a six-phase power transmission line in normal and emergency operating modes. METHODS. The studies were conducted on a computer model of an electrical network that includes a line of this type. Its formation involved an approach based on the use of phase coordinates. The modeling was carried out using the Fazonord software package, version 5.3.5.3-2024. RESULTS. The following operating modes of a 220 kV multiphase power transmission line were considered: symmetrical and open-phase with loads at the receiving end of 100 + j50 MVA per phase; single-phase, two-phase short circuits, as well as a two-phase ground fault. For comparison, the modes of a two-circuit three-phase power transmission line were modeled. The obtained results allowed us to draw the following conclusions: in a symmetrical load mode, a six-phase line creates induced voltages at certain points of the pipe that are more than three times greater than similar parameters for a three-phase power transmission line; however, the values of induced potentials do not exceed the permissible level of 60 V; in short-circuit modes, the maximum induced voltages in the transmission lines under consideration differ insignificantly; when one phase is disconnected, the induced voltages in a six-phase power transmission line go beyond the permissible limit, and in a three-phase line they do not exceed 60 V. CONCLUSION. The applied approach is distinguished by its universality and can be used to determine modes in networks of various configurations; the developed models can be used in the practice of designing sections of joint passage of promising six-phase power transmission lines and pipelines when developing measures to ensure the safe operation of service personnel.
About the Authors
A. V. Kryukov
Irkutsk State Transport University; Irkutsk National Research Technical University
Russian Federation
Russian Federation
Andrey V. Kryukov
Irkutsk
K. V. Suslov
Irkutsk National Research Technical University; National Research University "MEI"
Russian Federation
Russian Federation
Konstantin V. Suslov
Irkutsk
Moscow
A. E. Kryukov
Irkutsk National Research Technical University
Russian Federation
Russian Federation
Aleksandr E. Kryukov
Irkutsk
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Review
For citations:
Kryukov A.V., Suslov K.V., Kryukov A.E. Modeling of electromagnetic effects of six-phase power lines on pipelines. Power engineering: research, equipment, technology. 2024;26(6):108-120. (In Russ.) https://doi.org/10.30724/1998-9903-2024-26-6-108-120
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