TITLE:
Harmonic Currents of Semiconductor Pulse Switching Converters
AUTHORS:
Petr Bilik, Jan Zidek, Vaclav Kus, Tereza Josefova
KEYWORDS:
Rectifiers; Harmonic Analysis; Harmonic Distortion; Power System Harmonics; Current Measurement
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
November
14,
2013
ABSTRACT: 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 possible ways of
minimizing these currents is the use of pulse switching converters. On one
hand, the original, characteristic harmonic ones are minimized, but, on the
other hand, new frequencies caused by the modulation frequency appear in the
current spectrum. The level of the currents of these frequencies is small and
is scarcely dependent on the load of the converter. It may happen that the
proportional value of the monitored harmonic one is high, although the absolute
value is low. In the article presented, there is a description of the activity
of the pulse voltage rectifier and an analysis of the current taken. The other
part contains the results of the harmonic analysis of the stated current,
including both the absolute and proportional values according to the load. In
the conclusion, there are results of measurements of pulsed switching
converters taken from the real measurement.