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Power Electronics and Motor Drives
book

Power Electronics and Motor Drives

by Bogdan M. Wilamowski, J. David Irwin
October 2018
Intermediate to advanced content levelIntermediate to advanced
1015 pages
40h 24m
English
CRC Press
Content preview from Power Electronics and Motor Drives
Filtering Techniques for Power Quality Improvement 38-51
controller to better compensate the low-frequency harmonics. e low-frequency analysis of supply
current is shown in Figure 38.64a and b. e THD of this supply current is decreased from 28.83%
to 4.9% with the direct current control technique implemented with the U-PWM controller and
from 28.83% to 2.2% with the indirect current control technique implemented with the U-PWM
controller.
In order to evaluate the impact of U-PWM controller, one has to perform a spectrum analysis of the
same steady-state waveforms at the switching frequency. e results of the analysis are shown in Figu
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Publisher Resources

ISBN: 9781439802861