Abstract
Embedded generators such as wind generators can produce observable voltage fluctuations during variable wind conditions hence flicker. The flicker produced by such intermittent and fluctuating generating sources can propagate to other parts of the distribution network while creating power quality issues in distribution feeders. This study presents a flicker emission analysis for a doubly-fed induction generator (DFIG) based wind farm and investigate the pertinent factors which influence flicker propagation and attenuation in distribution feeders. Study has shown that voltage fluctuations are significantly influenced by the attenuation characteristics of various load types (i.e. constant power, impedance and current loads) connected to distribution network. Moreover, operating power factor of the wind farm has significantly influenced on flicker produced at the point of common coupling (PCC) of the wind farm and flicker propagation along the feeder. The outcome of the research is beneficial in understanding the flicker propagation in the distribution network in the presence of embedded generation.
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