omnaОмский научный вестникOmsk Scientific Bulletin1813-82252541-7541Омский государственный технический университет10.25206/1813-8225-2023-187-101-108QJTELWomna-277Research ArticleЭНЕРГЕТИКА И ЭЛЕКТРОТЕХНИКАENERGY AND ELECTRICAL ENGINEERINGАналитический метод расчета потерь в воздушных линиях электроэнергетических систем с учетом изменения нагрузки и погодных условийAnalytical method for calculating losses in overhead lines of electric power systems taking into account changes in load and weather conditionsПетроваЕ. В.PetrovaE. V.

ПЕТРОВА Елена Владимировна, старший преподаватель кафедры «Электроснабжение промышленных предприятий»

г. Омск

AuthorID (РИНЦ): 685250

PETROVA Elena Vladimirovna, Senior Lecturer of Power Supply for Industrial Enterprises Department

Omsk 

AuthorID (RSCI): 685250

evpetrova2000@yandex.ruОмский государственный технический университетРоссияOmsk State Technical UniversityRussian Federation20233009202303101108Copyright © Петрова Е.В., 20232023Петрова Е.В.Petrova E.V.This work is licensed under a Creative Commons Attribution 4.0 License.https://onv.omgtu.ru/jour/article/view/277

В данной статье предметом исследования являются методы расчета потерь активной мощности в воздушных линиях электроэнергетики при учете температурной зависимости активных сопротивлений. Предложен и подробно обоснован аналитический подход, основанный на методе Феррари для расчета температуры провода и потерь активной мощности в условиях вынужденной конвекции. Особенностью подхода является универсальность, выражающаяся в том, что разработанная математическая модель позволяет с единых позиций рассматривать неизолированные и изолированные провода в воздушных линиях электропередачи. Приведены результаты расчета температуры и потерь активной мощности предложенным методом, методом наименьших квадратов и итерационным методом. Отмечена высокая точность совпадения результатов, полученных различными методами.

In this article, the subject of research is methods for calculating active power losses in electric power overhead lines, taking into account the temperature dependence of active resistances. An analytical approach based on the Ferrari method for calculating the wire temperature and active power losses under conditions of forced convection is proposed and substantiated in detail. The peculiarity of the approach is universality, which is expressed in the fact that the developed mathematical model allows us to consider non-insulated and insulated wires on power transmission lines from a single position. The results of calculating the temperature and active power losses by the proposed method, the least squares method and the iterative method are presented. The high accuracy of the coincidence of the results obtained by various methods is noted.

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The authors declare that there are no conflicts of interest present.