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titleType: Subtitle
title: Methods for monitoring the parameters of generators with a thyristor excitation system in emergency modes
Creators: name: ÐÐµÐ½Ð¸ÑÐµÐ½ÐºÐ¾, Ð¤ÑÐ´Ð¾Ñ
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: 2022
Subjects: Ð¢Ð¸ÑÐ¸ÑÑÐ¾ÑÑ
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Ð²ÐµÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ Ð¼Ð¾Ð´ÐµÐ»Ð¸
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thyristor excitation systems
model verification
emergency modes in thyristor rectifier
transient processes waveforms

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description: The theme of the graduate qualification work is Â«Methods for monitoring the parameters of generators with a thyristor excitation system in emergency modesÂ».Â The subject of study is checking the correct operation of the simulated thyristor excitation system of the generator.Â The aim of the work is to improve methods of monitoring the parameters of a generator with a thytistor excitation system in emergency modes.Â Work goals:Â 1. Make a description of the equipment of the power plant and the thyristor excitation system.Â 2. Calculate short circuit currents and confirm the correct choice of electrical equipment.Â 3. To study the operating modes of thyristor excitation systems of generators.Â 4. Simulate the thyristor excitation system in the Matlab program.Â 5. Verify the model with the help of technical literature, data from real tests during commissioning.Â 6. Analyze the operating modes of the synchronous machine in case of malfunctions in the excitation system.Â 7. Test a new method for monitoring the parameters of generators with a thyristor excitation system in emergency modes.Â Modeling and calculation methods were used. Short circuit currents were calculated; a thyristor excitation system was modeled in the Matlab Simulink program; the model was verified by the technical standard.Â It was found, the algorithm for monitoring phase currents to the thyristor bridge and the rectified current of the rotor of a synchronous machine is efficient. The results of the work can be applied when creating a new protection circuits.Â Â