title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¸ÐºÐ¸ Ð¸ÑÐ¿ÑÑÐ°Ð½Ð¸Ð¹ ÑÑÑÑÐ¾Ð¹ÑÑÐ² ÐÐ§Ð
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Development of methods for testing automatic frequency unloading devices
Creators: name: Ð¡ÐºÐ°ÑÐºÐ¾Ð², ÐÐ²Ð°Ð½
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÑÐ°ÑÑÐµÑ Ð¿ÐµÑÐµÑ Ð¾Ð´Ð½ÑÑ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð²
Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸
ÑÐµÑÑÐ¾ÑÐµÐ·Ð¾Ð½Ð°Ð½Ñ
Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸ÐºÐ°
Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð½ÑÐ¹ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑ power systems transients
Powertron
Calculation of transition processes
Substation
Ferroresonance
Automation
Software power software systems transients

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description: Theme of final qualification work: Development of methods for testing automatic frequency unloading devices. This work is devoted to the study of existing approaches to testing modern microprocessor-based devices for automatic frequency unloading, which are currently used in the UES of Russia, as well as proposals are made to expand and improve the methods and methods of testing these devices. Tasks that were solved during the study: 1. Conducting a theoretical study of transients in a simple energy system, taking into account the action of AFUD devices in various emergency situations. 2. Development of a mathematical model of the energy system for the calculation of transients in the energy system. 3. A study of the dynamics of the process of reducing and restoring frequency in emergency conditions. 4. The study of the effect of accidents in the secondary circuits of VTs and the effect of ferroresonance on the erroneous operation of AFUD In the work, the existing methodology for certification testing of devices was investigated. âStandard relay protection and automation. Automatic emergency control of power system modes. â Calculations were performed showing how the nature of the load can affect the stability of the power system. Methods for improving AFR devices to eliminate false alarms were also considered. As a result, graphs of various transient processes were constructed for this mathematical model, on the basis of which proposals were then formulated to improve the mathematical model to obtain more accurate test results corresponding to the nature of the change in values in real power systems.