The increasing application of adjustable speed drives dictates that the effect of waveform distortions on other equipment in industrial systems must be seriously considered. In this paper, we proposed new, advanced methods for the accurate and fast estimation of waveform distortions caused on the supply-side currents by an adjustable-speed drive. The methods consist of a four-step procedure based on proper combinations of Prony, ESPRIT, and DFT methods as well as analytical formulas. The methods properly combine the accuracy of the parametric methods (ESPRIT or Prony) with the speed of both the DFT method and analytical formulas. Experiments and comparisons were made based on both synthetic and measurement data. The results showed that the proposed methods were effective and efficient.
|Titolo:||DFT-parametric methods for an accurate and fast assessment of waveform distortions caused by adjustable speed drives|
|Data di pubblicazione:||2016|
|Appare nelle tipologie:||1.1 Articolo in rivista|