Impact of distributed generation penetration on grid current harmonics considering non-linear loads

Vinod Khadkikar, Rajiv K. Varma, Ravi Seethapathy, Ambrish Chandra, Hatem Zeineldin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

30 Scopus citations

Abstract

In this paper, the impact of large-scale penetration of distributed generation (DG) system in the presence of non-linear loads is addressed. The effect of different DG penetration levels on the grid side current harmonics is examined. It is found that current harmonics generated by downstream non-linear loads with a TDD (total demand distortion) that is compliant with IEEE Standards can lead to significantly high THD (total harmonic distortion) values at the grid side under certain loading scenarios. These low magnitude highly distorted currents may cause protection circuitry and grid-synchronizing circuitry malfunctioning, and may even cause a resonance condition with power factor correction capacitor on the network. This paper further presents a control application of Photovoltaic (PV) solar plant based DG inverter o mitigate the above harmonics problem. The increased harmonic level issue and the application of PV solar plant to mitigate such problem have been demonstrated both by MATLAB/ SIMULINK simulation studies and laboratory experimental results.

Original languageBritish English
Title of host publicationProceedings - 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012
Pages608-614
Number of pages7
DOIs
StatePublished - 2012
Event2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012 - Aalborg, Denmark
Duration: 25 Jun 201228 Jun 2012

Publication series

NameProceedings - 2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012

Conference

Conference2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2012
Country/TerritoryDenmark
CityAalborg
Period25/06/1228/06/12

Keywords

  • active filtering
  • Current harmonics
  • distributed generation (DG) non-linear load
  • voltage source inverter (VSI)

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