Finite-Rate Distributed Secondary Control Over Digital Communication Networks Using an Event-Triggered Quantized Algorithm for Islanded Modern Microgrids Utilizing Inverter-Based Resources

Amir Afshari, Mohammad Raeispour, Masoud Davari, Weinan Gao, Frede Blaabjerg, Tianyou Chai

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Grid modernization and large-scale integration of inverter-based resources (IBRs) into distribution systems have resulted in the development of new control strategies relying on information and communication technologies. To this end, this article proposes a distributed secondary control algorithm using an event-triggered mechanism for exchanging information among IBRs over digital communication channels in islanded modern microgrids. Unlike the existing event-triggered studies, the proposed method is based on a nonlinear mapping technique for encoding shared data over digital communication channels, making it suitable for real-world applications. It enables the control system to use digitized and encoded data instead of typical continuous analog information, resulting in the more efficient usage of communication infrastructures. As a result, it can be regarded as a practical algorithm for stabilizing voltage and frequency during the transient and steady-state response of autonomous modern microgrids considering computational constraints and the limited bandwidth of communication systems. Finally, comparative simulation studies and experimental results validate the performance and effectiveness of the proposed algorithm.
Original languageEnglish
Article number10753132
JournalIEEE Transactions on Industrial Informatics
Volume21
Issue number2
Pages (from-to)1002-1016
Number of pages15
ISSN1941-0050
DOIs
Publication statusPublished - 2025

Keywords

  • Companies
  • Control systems
  • Digital communication
  • Event detection
  • Frequency control
  • Frequency measurement
  • Microgrids
  • Quantization (signal)
  • Signal processing algorithms
  • Voltage control

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