
Тема выпуÑкной квалификационной работы: «Ðнализ уÑтановившихÑÑ Ð¸ переходных режимов в ÑлектроÑнергетичеÑкой ÑиÑтеме 750/330 кВ». Ð’ данной работе произведен выбор Ð¾Ð±Ð¾Ñ€ÑƒÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑлектроÑнергетичеÑкой ÑиÑтемы – Ñиловых транÑформаторов Ñ ÑƒÑ‡ÐµÑ‚Ð¾Ð¼ аварийной перегрузки на 40 % Ñверх номинального тока на Ð²Ñ€ÐµÐ¼Ñ Ð¼Ð°ÐºÑимумов нагрузки и Ñечений проводов линий Ñлектропередачи Ñ Ð¿Ð¾Ñледующей проверкой по техничеÑким уÑловиÑм. Выполнен раÑчет уÑтановившегоÑÑ Ñ€ÐµÐ¶Ð¸Ð¼Ð° работы Ñлементов ÑлектроÑнергетичеÑкой ÑиÑтемы «вручную» и вариантные раÑчеты Ñ Ð¿Ð¾Ð¼Ð¾Ñ‰ÑŒÑŽ программного обеÑпечениÑ, в котором были реализованы режимы макÑимальных и минимальных нагрузок. С целью Ð¿Ð¾Ð´Ð´ÐµÑ€Ð¶Ð°Ð½Ð¸Ñ Ñ‚Ñ€ÐµÐ±ÑƒÐµÐ¼Ð¾Ð³Ð¾ ÑƒÑ€Ð¾Ð²Ð½Ñ Ð½Ð°Ð¿Ñ€Ñжений в ÑиÑтеме и оптимизации режима выбраны номера отпаек РПРтранÑформаторов и автотранÑформаторов и определен перечень компенÑирующих уÑтройÑтв. РаÑÑчитаны токи и напрÑÐ¶ÐµÐ½Ð¸Ñ Ð¿Ñ€Ð¸ двухфазном коротком замыкании на землю Ñ Ð¿Ð¾Ð¼Ð¾Ñ‰ÑŒÑŽ метода Ñимметричных ÑоÑтавлÑющих, и на оÑновании Ð¼Ð¾Ð´ÐµÐ»Ð¸Ñ€Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² Ñпециализированном программном комплекÑе Ñтого же аварийного Ð²Ð¾Ð·Ð¼ÑƒÑ‰ÐµÐ½Ð¸Ñ Ð¾ÑущеÑтвлен анализ динамичеÑкой уÑтойчивоÑти раÑÑматриваемой ÑнергоÑиÑтемы. Определено предельное Ð²Ñ€ÐµÐ¼Ñ Ð¾Ñ‚ÐºÐ»ÑŽÑ‡ÐµÐ½Ð¸Ñ ÐºÐ¾Ñ€Ð¾Ñ‚ÐºÐ¾Ð³Ð¾ Ð·Ð°Ð¼Ñ‹ÐºÐ°Ð½Ð¸Ñ Ð¸ предложены мероприÑÑ‚Ð¸Ñ Ð¿Ð¾ повышению уÑтойчивоÑти.
Theme of final qualification work: “Analysis of steady and transient conditions in the electric power system 750/330 kVâ€. In this work, the choice was made of the equipment of the electric power system - power transformers, considering emergency overload by 40% over the rated current for the time of maximum loads and wire cross sections of power lines with subsequent verification according to technical conditions. The calculation of the steady-state operation mode of the elements of the electric power system "manually" and the variant calculations using the software in which the maximum and minimum load modes were implemented. In order to maintain the required voltage level in the system and optimize the mode, the tap numbers of on-load tap changers of transformers and autotransformers were selected, and a list of compensating devices was determined. The currents and voltages are calculated for a two-phase short circuit to ground using the method of symmetrical components and based on the simulation in a specialized software package of the same emergency disturbance, the dynamic stability of the power system under consideration is analyzed. The short-circuit breaking time has been determined and measures to increase stability have been proposed.
динамиÑеÑÐºÐ°Ñ ÑÑÑойÑивоÑÑÑ, пеÑÐµÑ Ð¾Ð´Ð½Ñе пÑоÑеÑÑÑ, ÑÑÑановивÑийÑÑ Ñежим, ÑлекÑÑиÑеÑкие ÑеÑи, trancient processes, dynamic stability, on-peak conditions, steady-state mode, unbalanced short-circuit, неÑиммеÑÑиÑное коÑоÑкое замÑкание, electric power system, Ñежим макÑималÑнÑÑ Ð½Ð°Ð³ÑÑзок
динамиÑеÑÐºÐ°Ñ ÑÑÑойÑивоÑÑÑ, пеÑÐµÑ Ð¾Ð´Ð½Ñе пÑоÑеÑÑÑ, ÑÑÑановивÑийÑÑ Ñежим, ÑлекÑÑиÑеÑкие ÑеÑи, trancient processes, dynamic stability, on-peak conditions, steady-state mode, unbalanced short-circuit, неÑиммеÑÑиÑное коÑоÑкое замÑкание, electric power system, Ñежим макÑималÑнÑÑ Ð½Ð°Ð³ÑÑзок
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