# Digital Models for Power Flow Analysis and Calculation of Electromagnetic Interference Effects of Long-Distance Ultrahigh-Voltage Transmission Lines

### Andrey Kryukov, Andrey Kryukov, Konstantin Suslov, Konstantin Suslov, Alexandr Kryukov

#### 2023

#### Abstract

The goal of the research presented in this article was to develop computer models of long-distance ultra-high voltage (UHV) power transmission lines to provide comprehensive modeling of power flows and calculating electromagnetic interference effects on extended steel structures. In developing the models, we employed the methods based on the use of the phase frame of reference and equivalent lattice circuits with a fully connected topology. The simulations were carried out for a 1,150 kV UHV transmission line with a length of 900 km, each phase of which was formed by eight AC-330 wires . Simulations were performed using the software package Fazonord. Along with power flow calculations and determination of the voltages created by the 1,150 kV long-distance transmission line on the pipeline, we simulated electromagnetic fields, taking into account the impact exerted by the grounded steel structure. The results of modeling a long-distance 1,150 kV transmission line with receiving end loads of 300 + j 200 MVA per phase led to the following conclusions: in the case of a normal power flow with balanced loads at individual points of the structure the levels of induced voltages did not exceed the allowable limit of 60 V; in the case of two-phase and single-phase short-circuit power flows the maximum induced voltages also did not exceed the 1,000 V limit set by the regulatory document. The models presented in the paper can be put into practice when planning the measures to ensure the electrical safety of technicians working at the pipeline sections located in the areas that are subject to electromagnetic interference effects of transmission lines. The application scope of the technique developed covers the cases where a transmission line and a pipeline run in close proximity following a complex trajectory that includes parallel and oblique segments.

Download#### Paper Citation

#### in Harvard Style

Kryukov A., Suslov K. and Kryukov A. (2023). **Digital Models for Power Flow Analysis and Calculation of Electromagnetic Interference Effects of Long-Distance Ultrahigh-Voltage Transmission Lines**. In *Proceedings of the 12th International Conference on Smart Cities and Green ICT Systems - Volume 1: SMARTGREENS,* ISBN 978-989-758-651-4, SciTePress, pages 40-49. DOI: 10.5220/0011853400003491

#### in Bibtex Style

@conference{smartgreens23,

author={Andrey Kryukov and Konstantin Suslov and Alexandr Kryukov},

title={Digital Models for Power Flow Analysis and Calculation of Electromagnetic Interference Effects of Long-Distance Ultrahigh-Voltage Transmission Lines},

booktitle={Proceedings of the 12th International Conference on Smart Cities and Green ICT Systems - Volume 1: SMARTGREENS,},

year={2023},

pages={40-49},

publisher={SciTePress},

organization={INSTICC},

doi={10.5220/0011853400003491},

isbn={978-989-758-651-4},

}

#### in EndNote Style

TY - CONF

JO - Proceedings of the 12th International Conference on Smart Cities and Green ICT Systems - Volume 1: SMARTGREENS,

TI - Digital Models for Power Flow Analysis and Calculation of Electromagnetic Interference Effects of Long-Distance Ultrahigh-Voltage Transmission Lines

SN - 978-989-758-651-4

AU - Kryukov A.

AU - Suslov K.

AU - Kryukov A.

PY - 2023

SP - 40

EP - 49

DO - 10.5220/0011853400003491

PB - SciTePress