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has been cited by the following article:

• TITLE: Power Quality Issues Concerning Photovoltaic Generation and Electrical Vehicle Loads in Distribution Grids

  AUTHORS: Jaan Niitsoo, Paul Taklaja, Ivo Palu, Joni Klüss

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

  JOURNAL NAME: Smart Grid and Renewable Energy, Vol.6 No.6, June 29, 2015

  ABSTRACT: The high utilization level of renewable generation including residential photovoltaic (PV) systems together with the uncontrolled charging of electric vehicles (EVs) can have a significant impact on load characteristics in distribution networks. Harmonic content of PV generation, EV charging loads, and their influence on power quality indicators in residential distribution networks are discussed in this paper. For investigating likely power quality scenarios, PV generation and EV charging measurement results including current harmonic amplitude and phase angle values are used and compared with present load characteristics. Different modelling scenarios are analysed and a simplified model of harmonics in PVs and EVs is offered. The results of the study show moderate additional harmonic distortion in residential load current and voltage distortion at the substation’s busbar when PV generation and EV loading are added. The scenarios presented in this paper can be further used for modelling the actual harmonic loads of the PVs and EVs in distribution networks.