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Выбор оборудования и расчёт ÑÐ»ÐµÐºÑ‚Ñ€Ð¸Ñ‡ÐµÑÐºÐ¸Ñ Ñ€ÐµÐ¶Ð¸Ð¼Ð¾Ð² электроэнергетической системы 750/330 кВ

выпускная квалификационная работа бакалавра

Выбор оборудования и расчёт ÑÐ»ÐµÐºÑ‚Ñ€Ð¸Ñ‡ÐµÑÐºÐ¸Ñ Ñ€ÐµÐ¶Ð¸Ð¼Ð¾Ð² электроэнергетической системы 750/330 кВ

Abstract

Данная работа посвящена проектированию электроэнергетической системы, расчёту установившегося режима, расчёту короткого замыкания, анализу и улучшению динамической устойчивости системы. В результате проделанной работы было выбрано электротехническое оборудование (Силовые трансформаторы, линии электропередач, генераторы) для нормальной работы электроэнергетической системы 750/330 кВ в соответствии с начальными данными. Произведён расчёт установившегося режима при максимальных нагрузках аналитически и с помощью программы RastrWin3, а также для режима минимальных нагрузок только в вышеупомянутой программе. Для обоих режимов произведены успешные мероприятия для того, чтобы напряжения на нагрузках соответствовали ГОСТ 29322-2014 [1]. Был произведен расчет токов и напряжений при однофазном коротком замыкании методом симметричных составляющих аналитически и в программном комплексе EMTP. С помощью специального программного обеспечения Dymola был произведён анализ динамической устойчивости при моделировании аварийного режима однофазного короткого замыкания. Найдено предельное время отключения данного возмущения. С целью улучшения динамических свойств системы было применено однофазное автоматическое повторное включение (ОАПВ) линии, а также импульсная разгрузка турбины (ИРТ).

This work is devoted to the design of an electric power system, the calculation of the steady state, the calculation of the short circuit, the analysis and improvement of the dynamic stability of the system. As a result of the work done, electrical equipment (Power transformers, power lines, generators) was selected for the normal operation of the 750/330 kV electric power system in accordance with the initial data. The calculation of the steady-state mode at maximum loads was carried out analytically and using the RastrWin3 program, as well as for the mode of minimum loads only in RastrWin3. For both modes, successful measures were taken to ensure that the voltages at the loads corresponded to ГОСТ 29322-2014 [1]. The calculation of currents and voltages in a single-phase short circuit was performed using the method of symmetric components analytically and in the EMTP software package. With the help of special Dymola software, a dynamic stability analysis was carried out when simulating the emergency mode of a single-phase short circuit. The limiting time for switching off this disturbance is found. In order to improve the dynamic properties of the system, a single-phase automatic reclosing line was used, as well as a pulsed turbine unloading.

Keywords

динамическая устойчивость, расчет установившегося режима, выбор оборудования, single phase automatic reclosing, selection of equipment, однофазное короткое замыкание, impulse turbine unloading, Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ñ‹Ðµ процессы в ÑÐ»ÐµÐºÑ‚Ñ€Ð¾ÑÐ½ÐµÑ€Ð³ÐµÑ‚Ð¸Ñ‡ÐµÑÐºÐ¸Ñ ÑÐ¸ÑÑ‚ÐµÐ¼Ð°Ñ, ОАПВ, transients in electric power systems, dynamic stability, ИРТ, calculation of steady state conditions, single-phase short circuit

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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