Non-linear loads are responsible for producing unwanted higher current harmonics in power systems. Because they are becoming increasingly more common, there is currently high emphasis given on precision power analysis.
Development systems are also becoming more powerful and accessible. One of those is Red Pitaya, which is an open-source-software measurement tool. In this thesis the process of developing power analyzer application for Red Pitaya is presented.
Definitions for electrical power in nonsinusoidal conditions are listed in second chapter. In third chapter different procedures for measuring frequency, RMS value and phase difference of voltage and current are compared. In fourth chapter process of developing new applications and selected development platform is presented. In fifth chapter implementation of selected algorithms and developed application are presented. Discrete Fourier transform algorithms were selected for power analysis. Performance of developed application is compared with precision laboratory instrument in chapter six.
Performance of developed application meets objectives because it is satisfactory accurate, easy to use and provides good overview of conditions in measured system.
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