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Методы диагностики РЗА Ð²Ñ‹ÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑŒÑ‚Ð½Ñ‹Ñ Ð»Ð¸Ð½Ð¸Ð¹ электропередач

выпускная квалификационная работа магистра

Методы диагностики РЗА Ð²Ñ‹ÑÐ¾ÐºÐ¾Ð²Ð¾Ð»ÑŒÑ‚Ð½Ñ‹Ñ Ð»Ð¸Ð½Ð¸Ð¹ электропередач

Abstract

Данная работа посвящена исследованию сравнения работы ДЗЛ на линии с распределёнными и с сосредоточенными параметрами. Задачи, которые решались в Ñ Ð¾Ð´Ðµ исследования: 1. Изучение особенности работы ДЗЛ и требований, которые предъявляются к этим устройствам. 2. Составление программы Ñ„ÑƒÐ½ÐºÑ†Ð¸Ð¾Ð½Ð°Ð»ÑŒÐ½Ñ‹Ñ Ð¸ÑÐ¿Ñ‹Ñ‚Ð°Ð½Ð¸Ð¹ для исследования. 3. Создание модели сети, в которой будут Ð¿Ñ€Ð¾Ñ Ð¾Ð´Ð¸Ñ‚ÑŒ испытания. 4. Сравнение Ð¿Ð¾Ð»ÑƒÑ‡ÐµÐ½Ð½Ñ‹Ñ Ñ€ÐµÐ·ÑƒÐ»ÑŒÑ‚Ð°Ñ‚Ð¾Ð² и сложение окончательного вывода. Анализ проводился методом математического моделирования с помощью программного обеспечения Matlab Simulink, в нём создавалась модель сети. После этого использовалось программное обеспечение LabView, для моделирования алгоритма защиты. Ð’ результате была проанализирована работа дифференциальной защиты линии в Ñ€Ð°Ð·Ð½Ñ‹Ñ ÑÐ¸Ñ‚ÑƒÐ°Ñ†Ð¸ÑÑ . Также была разработана программа Ñ„ÑƒÐ½ÐºÑ†Ð¸Ð¾Ð½Ð°Ð»ÑŒÐ½Ñ‹Ñ Ð¸ÑÐ¿Ñ‹Ñ‚Ð°Ð½Ð¸Ð¹ на основе стандартов, Ð½ÐµÐ¾Ð±Ñ Ð¾Ð´Ð¸Ð¼Ð°Ñ для проверки функционирования работы ДЗЛ. На основании Ð¿Ñ€Ð¾Ð²ÐµÐ´ÐµÐ½Ð½Ñ‹Ñ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ð¹ было однозначно определенно, что использование модели линии с распределёнными параметрами в целом никак не влияет на работу дифференциальной защиты по сравнению с моделью линии с сосредоточенными параметрами. Но при этом в Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ñ‹Ñ Ð¿Ñ€Ð¾Ñ†ÐµÑÑÐ°Ñ Ð±Ñ‹Ð»Ð¸ выявлены различия для Ð´Ð²ÑƒÑ Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ и Ñ Ð°Ñ€Ð°ÐºÑ‚ÐµÑ€Ð½Ñ‹Ðµ особенности, присущие только для линий с распределёнными параметрами.

The given work is devoted to study of comparing of operation DLP on the line with distributed and lumped parameters. Tasks that were solved during the study: 1. Study of the feature of DLP and the requirements that apply to these devices. 2. Drawing up a functional test program for research. 3. Creation of a network model in which tests will make place. 4. Comparison of the results obtained and addition of the conclusion. The analysis was carried out by the method of mathematical modeling using the Matlab Simulink software, in which a network model was created. After that, the LabView software was used to simulate the protection algorithm. As a result, the operation of the differential line protection in different situations was analyzed. A standard-based functional test program was also developed, which is necessary to verify the functioning of the remote sensing system. Based on the conducted studies, it was clearly determined that the use of the line model with distributed parameters in general does not affect the operation of the differential protection in comparison with the line model with concentrated parameters. But at the same time, in the transients, differences were revealed for the two models and characteristic features inherent only for lines with distributed parameters.

Keywords

дифференциальная защита линии, electromagnetic transients, Matlab Simulink software package, электромагнитные Ð¿ÐµÑ€ÐµÑ Ð¾Ð´Ð½Ñ‹Ðµ процессы, long line, Энергетические системы, программный комплекс Matlab Simulink, Вычислительные машины электронные персональные, длинная линия, differential line protection (DLP), Релейная защита

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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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