Share of current harmonics, which is taken from the power net, increases with the use of
diode and thyristor rectifiers (so-called characteristic harmonics of current). One of the ways …

This paper presents the issue of current harmonics drawn from the grid by three-phase
voltage-source active rectifiers when the switching frequency of the devices is random; it is …

Due to the operation of power semiconductor switching converters, the content of harmonic
currents, which these switching converters take from the feed array, is still increasing. One of …

The traditional method used to detect and localize power quality disturbances by Fast
Fourier Transform (FFT) can provide only amplitude-frequency information, but looses time …

It is well-known the fact that the frequency-domain approach obtained by Fourier transforms
(FT) can provide amplitude-frequency spectrum while losing time-related information. In non …

The emergence of deforming regimes is related to the proliferation of nonlinear electrical
receivers. The higher harmonics of drawn currents from power systems can be evaluated …

Le réseau électrique industriel, qui fait partie du réseau public, sert à alimenter en électricité
les usines. Cela depuis les transformateurs abaisseurs jusqu'aux réseaux internes de …

Based on Fast Fourier Transform (FFT), power quality indices (PQIs) definitions contained in
the standards cannot be successfully applied for non-stationary signals analysis in …

The paper analyzes two promising variants of an energy-saving electric drives for lifting
mechanisms of non-ferrous metallurgy enterprises. As the first variant, a variable-frequency …

This paper presents an effect of dead times on values of an input current harmonics drawn
from an electric grid by a voltage-source active rectifier. The first part shows a derivation of …