Single-circuit equivalent of a double-circuit line with parallel operation of circuits

• Autorzy: Moussa Sherif , Krasilnikova Tatiana Germanovna , Samorodov German Ivanovich , Makhmudov Karomatullo Azizovich , Safaraliev Murodbek Kholnazarovich , Kamalov Firuz , Ghulomzoda Anvari Hikmat

Identyfikatory

DOI

10.15199/48.2024.06.13

Warianty tytułu

PL

Jednoprzewodowy odpowiednik linii dwutorowej z równoległą pracą obwodów

• Języki publikacji: EN

Abstrakty

EN

Analysis of modes in circuits with two-chain lines sometimes requires reducing them to an equivalent single-chain line. The solution to this problem for a single-line circuit is known, and there are corresponding expressions for determining the coefficients of an equivalent 4-pole in terms of the coefficients of the original 4-poles. However, in some cases, there is a need to analyze modes in a 3-phase formulation, where there may be schemes with parallel 3-phase circuits. In this case, the problem arises of reducing parallel independent 3-phase lines to a 3-phase equivalent. For this purpose, the modal method for determining matrix phase coefficients is used. A special approach is required when converting a 6-phase line (two circuits on the same support) to a 3-phase circuit, when it is necessary to consider the mutual influence of the circuits. This research aims to provide a solution to the problem of reducing a 6-phase line to a 3-phase equivalent in parallel operation of circuits. Calculations based on the proposed algorithm for the 3-phase equivalent of a 500 kV 6-phase line with a length of 500 km are presented. The results satisfy the fundamental property of the n-th order multipole coefficients.

PL

Analizując mody w obwodach z liniami podwójnymi, czasami zachodzi potrzeba ich zredukowania do równoważnej linii jednotorowej. Rozwiązanie tego problemu dla obwodu jednoliniowego jest znane i istnieją odpowiednie wyrażenia umożliwiające określenie współczynników równoważnej sieci 4-portowej poprzez współczynniki oryginalnych sieci 4-portowych. Jednak w wielu przypadkach zachodzi potrzeba analizy trybów w układzie 3-fazowym i w tym przypadku mogą występować obwody z równoległymi obwodami 3-fazowymi. W tym przypadku pojawia się zadanie doprowadzenia równoległych niezależnych linii 3-fazowych do odpowiednika 3-fazowego. Do tych celów wykorzystuje się modalną metodę wyznaczania współczynników fazowych macierzy. Szczególnego podejścia wymaga zamiana linii 6-fazowej (dwa obwody na jednym wsporniku) na obwód 3-fazowy, gdy konieczne jest uwzględnienie wzajemnego wpływu obwodów. W artykule zaproponowano rozwiązanie problemu doprowadzenia linii 6-fazowej do odpowiednika 3-fazowego, gdy obwody pracują równolegle. Obliczenia z wykorzystaniem zaproponowanego algorytmu przedstawiono dla trójfazowego odpowiednika 6-fazowej linii 500 kV o długości 500 km. Wyniki obliczeń spełniają podstawową właściwość, jaką posiadają współczynniki sieci wieloportowej n-tego rzędu.

Słowa kluczowe

EN

ultra-high voltage line; double circuit power line; six phase power line

PL

linie ultrawysokiego napięcia; dwuobwodowa linia energetyczna; sześciofazowa linia energetyczna

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2024
• Tom: R. 100, nr 6
• Strony: 71--76
• Opis fizyczny: Bibliogr. 31 poz., rys.

Twórcy

autor

Moussa Sherif

• Department of Electrical Engineering, Canadian University Dubai, Dubai, 118871, United Arab Emirates

• https://orcid.org/0000-0002-9803-0405

autor

Krasilnikova Tatiana Germanovna

• Department of Automated Electric Power Systems, Novosibirsk State Technical University, 20, Prospekt K. Marx, Novosibirsk, 630073, Russian Federation

• https://orcid.org/0000-0002-5868-0921

autor

Samorodov German Ivanovich

• Department of Automated Electric Power Systems, Novosibirsk State Technical University, 20, Prospekt K. Marx, Novosibirsk, 630073, Russian Federation

autor

Makhmudov Karomatullo Azizovich

• Department of Automated Electric Power Systems, Novosibirsk State Technical University, 20, Prospekt K. Marx, Novosibirsk, 630073, Russian Federation

• https://orcid.org/0000-0003-2127-3772

autor

Safaraliev Murodbek Kholnazarovich

• Department of Automated Electrical Systems, Ural Federal University, 19, Mira Street, Yekaterinburg, 620002, Russian Federation

• https://orcid.org/0000-0003-3433-9742

autor

Kamalov Firuz

• Department of Electrical Engineering, Canadian University Dubai, Dubai, 118871, United Arab Emirates

autor

Ghulomzoda Anvari Hikmat

• Department of Automated Electric Power Systems, Novosibirsk State Technical University, 20, Prospekt K. Marx, Novosibirsk, 630073, Russian Federation

• https://orcid.org/0000-0002-4344-6462

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki i promocja sportu (2025).