Extensions to Two-Port Network Modeling Method and Analysis of Multiple-VSC-Based Systems

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

Abstract

In the impedance-based stability analysis methods, the grid-connected voltage source converter (VSC) is described as a multiple-input multiple-output (MIMO) system, which is also a two-port network. In this paper, a stability analysis method based on the concepts of scattering parameters (S-parameters) and reflection coefficients in the two-port network theory is proposed. Through the use of reflection coefficients, the open-loop gains at each bus can be derived individually. Thus the system with multiple VSCs is characterized as connections of two-port networks with S-parameters. The stability can then be analyzed using the classical stability analysis tool and the relative stability is defined. Experimental results validate the theoretical findings.
Original languageEnglish
Title of host publicationProceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL)
Number of pages8
Place of PublicationCanada
PublisherIEEE Press
Publication dateJun 2019
Pages1-8
Article number8769624
ISBN (Print)978-1-7281-1843-7
ISBN (Electronic) 978-1-7281-1842-0
DOIs
Publication statusPublished - Jun 2019
Event20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019 - Toronto, Canada
Duration: 17 Jun 201920 Jun 2019

Conference

Conference20th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2019
CountryCanada
CityToronto
Period17/06/201920/06/2019
SeriesIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

Keywords

  • Reflection coefficient
  • Scattering parameters
  • Stability analysis
  • Two-port network
  • Voltage source converters

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    Chou, S. F., Wang, X., & Blaabjerg, F. (2019). Extensions to Two-Port Network Modeling Method and Analysis of Multiple-VSC-Based Systems. In Proceedings of 2019 20th Workshop on Control and Modeling for Power Electronics (COMPEL) (pp. 1-8). [8769624] IEEE Press. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) https://doi.org/10.1109/COMPEL.2019.8769624