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An Improved Harmonic Power Sharing Scheme of Paralleled Inverter System

  • Hongpeng Liu
  • , Xiaoxi Liu
  • , Wei Zhang
  • , Wei Wang
  • Harbin Institute of Technology

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

6 Scopus citations

Abstract

Due to the growing demand of the electric power and rapid penetration of power electronics equipment, the parallel inverter system which is connected with the nonlinear loads widely exists in islanded micro-grid. The effective harmonic power sharing scheme should be designed to guarantee the system stable operation. In this paper, a negative virtual impedance is introduced to improve the harmonic power sharing precision. The negative virtual impedance is chosen by an improved droop method based on the relationship between virtual inductance and harmonic reactive power. Besides, the voltage drop at PCC can be counteracted. The experimental results validate the correctness and feasibility of the proposed scheme.

Original languageEnglish
Title of host publication2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2969-2972
Number of pages4
ISBN (Electronic)9784886864055
DOIs
StatePublished - 22 Oct 2018
Externally publishedYes
Event8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018 - Niigata, Japan
Duration: 20 May 201824 May 2018

Publication series

Name2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018

Conference

Conference8th International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018
Country/TerritoryJapan
CityNiigata
Period20/05/1824/05/18

Keywords

  • Droop control
  • Harmonic power sharing
  • Islanded mode
  • Negative virtual impedance
  • Paralleled inverter

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