An Improved Reactive Power Control Strategy for the Parallel Inverter System Based on VSG

Guihua Liu, Yixiang Jing, Wei Wang, Frede Blaajerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

4 Citations (Scopus)

Abstract

Distributed power supply's interface are often power electronic devices. Although it has the advantage of fast response, the system is not stable enough to resist load and frequency disturbance. Virtual synchronous generator (VSG) control algorithm can improve the stability of the inverter system. In the parallel inverter system, one of the critical requirements is the accuracy of power distribution. This paper proposes an improved power control strategy based on VSG for the parallel inverter system. By adding virtual negative impedance and improved reactive power control method, the accuracy of power distribution is improved, the current circulation is suppressed, and the stability of the inverter system is improved. Simulation results show the effectiveness of the proposed method.
Original languageEnglish
Title of host publication2019 22nd International Conference on Electrical Machines and Systems (ICEMS)
Number of pages6
PublisherIEEE
Publication dateAug 2019
Article number8922222
ISBN (Print)978-1-7281-3399-7
DOIs
Publication statusPublished - Aug 2019
Event2019 22nd International Conference on Electrical Machines and Systems (ICEMS) - Harbin, China
Duration: 11 Aug 201914 Aug 2019

Conference

Conference2019 22nd International Conference on Electrical Machines and Systems (ICEMS)
LocationHarbin, China
Period11/08/201914/08/2019
SeriesInternational Conference on Electrical Machines and Systems (ICEMS)
ISSN2642-5513

Keywords

  • Inverters
  • Impedance
  • Stability analysis
  • Mathematical model
  • Power system stability
  • Synchronous generators
  • Power distribution

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