Model predictive control based virtual synchronous generator for parallel-connected three-phase split-source converters in islanded AC Microgrids

Walaa M. Abou-Hussein*, Sherif Dabour, Mostafa S. Hamad, Essam M. Rashad

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

Due to high penetration of renewable generation in power systems, and the need to provide the interface between distributed energy resources, the split-source inverter (SSI) provides both the boosting and the conversion capabilities in one single-stage. Also the need for converter-based artificial inertia has become more important. In this paper a model-predictive control (MPC) based on virtual synchronous generator (VSG) algorithm for a parallel-connected three-phase SSI is proposed for conceiving regulation of local voltage and realizing power-sharing of an islanded AC microgrid (MG). A virtual synchronous generator (VSG) is deployed to ensure active-power-sharing and provide inertia-emulation and hence reducing the rate of change of frequency (RoCoF) that results from sudden load change. To accomplish a simple control construction, quick dynamic performance, high stability, and enhanced current limitation, a finite-set MPC (FS-MPC) is used. The analysis and modeling of the proposed technique are presented in detail. A simulation model is used to investigate the proposed system performance.

Original languageEnglish
Pages (from-to)1696-1706
Number of pages11
JournalEnergy Reports
Volume9
DOIs
Publication statusPublished - 4 Jan 2023

Keywords

  • Microgrid
  • Predictive control
  • Virtual synchronous generator
  • split-source inverters (SSI)

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