Analyzátor harmonických napětí a proudů pro frekvence 50Hz-9kHz na bázi virtuální instrumentace dle ČSN 61000-4-7 ed.2.

Abstract

The created dissertation sums up the questions of measuring of harmonic voltage and current in the supply net. It focuses on analyzers of harmonic components. Analyzers of harmonic components are used for monitoring of a state and diagnostics of defects in power supply. The graphical developmental medium LabVIEW, hardware platform CompactDAQ and used modules, Fourier's transformation and the suggestion of measuring application, and an application for working of measured data are described in this work. The main purpose of this work is to suggest and create virtual analyzer of harmonic voltage and current with the utilization of graphical developmental medium LabView. The Virtual analyzer compiles the signal measured by the hardware platform NI CompactDAQ. The work further deals with the suggestion and implementation of an application for working of data measured by this virtual analyzer.