Impact of Synchronous Generator Replacement with VSG on Power System Stability

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

Abstract

The stability of frequency and voltage endure high risk due to the integration of power converters. One of the promising solution is the virtual synchronous generator, which controls the power converter to mimic the characteristics of a synchronous generator. This paper evaluates the impact of using the virtual synchronous generator instead of an actual synchronous generator on the power system. Two different modeling methods are considered, where a high order model is used to investigate that how close a virtual synchronous generator can emulate a synchronous generator, and a low order model is used to investigate the influence when only the key features of the synchronous generator are modeled, such as the inertia. The IEEE 9-bus modified test system is used to obtain the simulation results in this paper. It shows that a 6th-order model based VSG is detailed enough to emulate a synchronous generator in most cases and a 2nd-order model based VSG behaves differently, which may introduce both advantages and disadvantages.
Original languageEnglish
Title of host publication2020 IEEE 21st Workshop on Control and Modeling for Power Electronics (COMPEL)
Publication date2020
Pages1-7
ISBN (Print)978-1-7281-7161-6
ISBN (Electronic)978-1-7281-7160-9
DOIs
Publication statusPublished - 2020
Event21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark
Duration: 9 Nov 202012 Nov 2020

Conference

Conference21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
CountryDenmark
CityAalborg
Period09/11/202012/11/2020
SeriesIEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN1093-5142

Keywords

  • Mathematical model
  • Power system stability
  • Electromagnetics
  • Voltage control
  • Synchronous generators
  • Transient analysis
  • Steady-state

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