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Research on Control Strategy for a Multiple Grid-Connected-Inverter System

  • School of Electrical Engineering and Automation, Harbin Institute of Technology

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

Abstract

In this paper, the static stability of droop control for a multiple grid-connected-inverter system is analyzed. The equations of droop coefficient to power capacity are derived. However, inverters based on conventional droop control have no inertia support for the power system. Therefore, a modified strategy adding virtual synchronous generator control to the conventional static droop approach is proposed. The inertia and damping for inverters are increased to suppress the variation of voltage frequency, which provides a perfect static stability and transient performance. After that, small-signal models are built to compare the frequency transient of these two control strategies. Finally, simulation experiments verify the effectiveness and validity of the modified strategy.

Original languageEnglish
Title of host publicationProceedings - 2016 3rd International Conference on Information Science and Control Engineering, ICISCE 2016
EditorsShaozi Li, Yun Cheng, Ying Dai
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1060-1063
Number of pages4
ISBN (Electronic)9781509025350
DOIs
StatePublished - 31 Oct 2016
Externally publishedYes
Event3rd International Conference on Information Science and Control Engineering, ICISCE 2016 - Beijing, China
Duration: 8 Jul 201610 Jul 2016

Publication series

NameProceedings - 2016 3rd International Conference on Information Science and Control Engineering, ICISCE 2016

Conference

Conference3rd International Conference on Information Science and Control Engineering, ICISCE 2016
Country/TerritoryChina
CityBeijing
Period8/07/1610/07/16

Keywords

  • Droop control
  • Microgrid
  • Parallelled-connected inverters
  • Virtual synchronous generator

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