Tracing harmonic contributions of multiple distributed generations in distribution systems with uncertainty

Shouxiang Wang, Xiang Liu, Kai Wang, Lei Wu, Ying Zhang

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

With an increasing number of inverter-interfaced distributed generations (DG) being integrated into distribution systems, significant harmonics could be injected to bring an adverse impact on distribution system operation. These harmonics usually fluctuate due to the variability and intermittency of DG outputs. However, different DGs, depending on their locations and sizes, may present different harmonic contributions in distribution systems, and it is important to identify which DG has the largest influence on a specific bus. In this paper, a Complex Affine arithmetic based Three-phase Harmonic Power Flow method (CATHPF) is proposed to trace the harmonic contributions of individual DGs to distribution systems. The contribution of each DG to harmonic voltage (CDGHV) is calculated based on CATHPF. The CATHPF method is tested on an IEEE 33-bus distribution system. The proposed CATHPF method can quantitatively evaluate harmonic contributions of individual DGs in distribution systems, and in turn guide the effective allocation of harmonic control equipment.

Original languageEnglish
Pages (from-to)585-591
Number of pages7
JournalInternational Journal of Electrical Power and Energy Systems
Volume95
DOIs
StatePublished - Feb 2018

Keywords

  • Complex affine arithmetic
  • Harmonic contribution
  • Harmonic power flow
  • Uncertainty

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