Taking into account the influence of asymmetric traction load on the choice of the response parameters of blocking during oscillations of distance protection
https://doi.org/10.37493/2307-907X.2024.6.6
Abstract
Introduction. The paper considers the problem of the influence of asymmetric traction load (ATL) on the functioning of relay protection, in particular, blocking during swings (BD) of distance protection (DP).
Goal. The paper aims to clarify the choice of parameters for the response of measuring elements (ME) of the negative sequence current (NSC) (and its increment) of BD DP in the presence of traction substations in the electric network.
Materials and methods. The study is based on the analysis of the modes of electric networks of external traction power supply.
Results and discussion. The work shows the need to take into account the NSC component caused by the ATL when choosing the parameters of the MI NSC.
Conclusion. Based on the results of the conducted study, it can be noted that the TOPs caused by the TNG may exceed the negative sequence unbalance currents generated by oscillations (asynchronous mode), which requires their consideration when selecting the response parameters of the BC DZ protection of overhead lines.
About the Authors
V. I. Nagay
South-Russian State Polytechnical University (NPI) named after M. I. Platov
Russian Federation
Russian Federation
Vladimir I. Nagay – Dr. Sci. (Techn.), Professor, Professor of the Department of Electric Power Plants and Electric Power
Scopus ID: 56229983300
Researcher ID: E-4282-2015
132, Prosveshcheniya str., Novocherkassk, Rostov Region, 346428
A. V. Ukraintsev
South-Russian State Polytechnical University (NPI) named after M. I. Platov
Russian Federation
Russian Federation
Alexander V. Ukraintsev – Senior Lecturer of the Department of Electric Power Plants and Electric Power Systems
Scopus ID: 56239079600
Researcher ID: P-9286-2015
132, Prosveshcheniya str., Novocherkassk, Rostov Region, 346428
B. E Dynkin
South-Russian State Polytechnical University (NPI) named after M. I. Platov
Russian Federation
Russian Federation
Boris E. Dynkin – Dr. Sci. (Techn.), Professor, Professor of the Department of Electric Power Plants and Electric Power Systems
Scopus ID: 56245776700
Researcher ID: LSK-0476-2024
132, Prosveshcheniya str., Novocherkassk, Rostov Region, 346428
A. S. Zasypkin
South-Russian State Polytechnical University (NPI) named after M. I. Platov
Russian Federation
Russian Federation
Alexander S. Zasypkin – Dr. Sci. (Techn.), Professor, Professor of the Department of Electric Power Plants and Electric Power Systems
Researcher ID: LSJ-8094-2024
132, Prosveshcheniya str., Novocherkassk, Rostov Region, 346428
P. S. Kireev
South-Russian State Polytechnical University (NPI) named after M. I. Platov
Russian Federation
Russian Federation
Pavel S. Kireev – Cand. Sci. (Techn.), Associate Professor of the Department of Electric Power Plants and Electric Power Systems
Scopus ID: 56921839900
Researcher ID: AAC-7398-2021
132, Prosveshcheniya str., Novocherkassk, Rostov Region, 346428
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Review
For citations:
Nagay V.I., Ukraintsev A.V., Dynkin B.E., Zasypkin A.S., Kireev P.S. Taking into account the influence of asymmetric traction load on the choice of the response parameters of blocking during oscillations of distance protection. Newsletter of North-Caucasus Federal University. 2024;(6):59-68. (In Russ.) https://doi.org/10.37493/2307-907X.2024.6.6
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