Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution GridsReport as inadecuate




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The high utilization level of renewable generation including residential photovoltaic PV systemstogether with the uncontrolled charging of electric vehicles EVs can have a significant impact onload characteristics in distribution networks. Harmonic content of PV generation, EV chargingloads, and their influence on power quality indicators in residential distribution networks arediscussed in this paper. For investigating likely power quality scenarios, PV generation and EVcharging measurement results including current harmonic amplitude and phase angle values areused and compared with present load characteristics. Different modelling scenarios are analysedand a simplified model of harmonics in PVs and EVs is offered. The results of the study show moderateadditional harmonic distortion in residential load current and voltage distortion at the substation’sbusbar when PV generation and EV loading are added. The scenarios presented in thispaper can be further used for modelling the actual harmonic loads of the PVs and EVs in distributionnetworks.

KEYWORDS

Current Measurement, Distributed Generation, Electric Vehicles, Load Modelling, Photo Voltaic, Power Quality, Power System Harmonics

Cite this paper

Niitsoo, J. , Taklaja, P. , Palu, I. and Klüss, J. 2015 Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution Grids. Smart Grid and Renewable Energy, 6, 164-177. doi: 10.4236-sgre.2015.66015.





Author: Jaan Niitsoo1, Paul Taklaja1, Ivo Palu1, Joni Klüss2

Source: http://www.scirp.org/



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