Adaptive event-triggering H∞ load frequency control for network-based power systems

Chen Peng*, Jin Zhang, Huaicheng Yan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Load frequency control (LFC) is a very important method to keep the power systems stable and secure. However, due to the introduction of communication networks in multi-area power systems, the traditional LFC method is not effective again. This motivates us to investigate an adaptive event-triggering H∞ LFC scheme for multi-area power systems. Compared with the existing timeinvariant event-triggering communication scheme, an adaptive event-triggering communication scheme is presented, where the event-triggering threshold can be dynamically adjusted to save more limited network resources, while preserving the desired control performance. Compared with the existing emulation-based method, where the controller must be known a priori, the stability and stabilization criteria derived in this work can provide a tradeoff to balance the required communication resources and the desired control performance. The effectiveness of the proposed method is verified by two numerical examples.

Original languageEnglish
Article number2726965
Pages (from-to)1685-1694
Number of pages10
JournalIEEE Transactions on Industrial Electronics
Volume65
Issue number2
DOIs
StatePublished - 13 Jul 2017
Externally publishedYes

Keywords

  • Adaptive event-triggering communication (AETC)
  • load frequency control (LFC)
  • network-based power systems

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