Frequency stability in modern power network from complex network viewpoint

Hai-Peng Ren*, Yuan Gao, Long Huo, Ji-hong Song, Celso Grebogi

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Grid-connected operation of Renewable Energy and Storage (RES) nodes make
the dynamics of modern power grid to be more complex. A model of power grid,
considering RES nodes, is being proposed to address frequency synchronization
and stability analysis. First, a unified dynamical model of four different types of
nodes are established according to the swing equation, including the RES nodes
with power-frequency droop inverter controllers. The storage nodes have charging and discharging states. We provide a sufficient condition for the existence and
stability of frequency synchronized solution via the linear time-varying consensus protocol of multi-agent system. The results are validated by Western System
Coordinating Council and the Shaanxi North Power Grid model.
Original languageEnglish
Article number123558
Number of pages14
JournalPhysica A: Statistical Mechanics and its Applications
Volume545
Early online date22 Nov 2019
DOIs
Publication statusPublished - 1 May 2020

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Keywords

  • renewable energy and storage
  • multi-agent system
  • frequency synchronization
  • stability
  • consensus protocol
  • Renewable Energy and Storage
  • Stability
  • Multi-agent system
  • Frequency synchronization
  • SYNCHRONIZATION

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Statistics and Probability

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