Allowable DG penetration level considering harmonic distortions

V. Ravikumar Pandi, H. H. Zeineldin, Weidong Xiao

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

15 Scopus citations


The interconnection of distributed generation (DG) requires careful study with respect to selecting both the best DG location and the size of the DG unit. The DG installation at the distribution level injects harmonics, and thus may lead to significant power quality problems. In this paper, the impact of DG penetration level and DG location is evaluated by considering the power quality limits of IEEE Standard 519-1992. The nonlinear optimization problem is formulated with size of DG being a positive real number to be optimized and solved using particle swarm optimization. The optimization algorithm is integrated with the harmonic power flow algorithm to calculate the values of the system operating point and harmonic components. The formulated approach is tested on an IEEE 18-bus radial distribution system and the results show that the consideration of harmonics during DG interconnection studies is essential to avoid associated power quality problems.

Original languageBritish English
Title of host publicationProceedings
Subtitle of host publicationIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
Number of pages5
StatePublished - 2011
Event37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011 - Melbourne, VIC, Australia
Duration: 7 Nov 201110 Nov 2011

Publication series

NameIECON Proceedings (Industrial Electronics Conference)


Conference37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
CityMelbourne, VIC


  • Distributed generation
  • harmonic distortions
  • particle swarm optimization


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