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The presence of harmonics in the electric voltage or current waveforms constitutes a steady-state type of Power Quality event. Harmonics are sinusoidal components at frequencies that are integer multiples of the fundamental frequency (50 Hz or 60 Hz, in the electric power systems). These are produced by the non-linear characteristics of the devices and loads, causing Power Quality disturbances. In...
This paper presents the guidelines for building a low-cost network suitable for power-quality monitoring. The implementation of a standalone basic node capable of extracting various power-quality metrics (Total Harmonic Distortion-THD, Crest Factor, etc) in an open-source hardware embedded system board is described. By utilizing simple signal processing techniques directly in hardware, this node maintains...
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