An Improved Predictive Control Strategy for Grid-Following Inverters During Voltage Sag

Anas Karaki*, Ali Sharida, Sertac Bayhan

*Corresponding author for this work

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

Abstract

As power systems transition towards a more sustainable future with increasing integration of renewable energy sources (RES), the ability to handle low-voltage ride-through (LVRT) becomes essential for maintaining grid stability. This work investigates the impact of LVRT functionality for parallel inverter-based resources (IBRs) and explores the potential benefits of incorporating these IBRs to support the grid during voltage sags and contingencies. The study introduces a current reference generation method based on positive- and negative-sequence components to eliminate double-line frequency harmonics for grid-following (GFL) IBRs with LVRT capability. This approach enhances IBR performance under various grid disturbances by ensuring effective current limitation and accurate active and reactive power injection. The proposed method is implemented using Matlab Simulink under different unbalanced grid conditions to demonstrate the effectiveness of the approach in providing reactive power support according to grid code requirements.

Original languageEnglish
Title of host publication2025 Ieee 19th International Conference On Compatibility, Power Electronics And Power Engineering, Cpe-powereng
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9798331515171
ISBN (Print)979-8-3315-1518-8
DOIs
Publication statusPublished - 22 May 2025
Event19th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2025 - Antalya, Turkey
Duration: 20 May 202522 May 2025

Publication series

NameCompatibility Power Electronics And Power Engineering

Conference

Conference19th IEEE International Conference on Compatibility, Power Electronics and Power Engineering, CPE-POWERENG 2025
Country/TerritoryTurkey
CityAntalya
Period20/05/2522/05/25

Keywords

  • Grid-following inverter
  • Inverter-based resource
  • Low-voltage ride-through
  • Predictive control
  • Voltage sag

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