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Measuring System for Registration of Atmospheric and Switch Overvoltages in Electrical Power Network

By Lukáš Potáček

Abstract

This thesis is oriented to a specific section of energetics concerned with detection and registration of time responses of fast overvoltages in high-voltage power networks. The first part of this text is information about measuring frequency response characteristics of CR-divider and calculation of typical signal distortion caused by transfer function of this divider. The design of anti-aliasing filter is also included. The second part of this thesis is oriented to selecting key features of a measuring instrument specialized for detecting and recording fast events in electrical power networks. A selection of optimal type of processor and also a choice of communication interfaces is included there as well. The last chapter prepares mathematical procedures for classification of typical fast events in electrical power network using artificial neural networks

Topics: měřicí přístroje; classification; CR dělič; measuring instrument; atmosférická přepětí; spínací přepětí; CR divider; overvoltage; klasifikace; frequency response characteristics; frekvenční charakteristiky; neural networks
Publisher: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
Year: 2009
OAI identifier: oai:invenio.nusl.cz:233445
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