Passivity-Based Design of Sliding Modes for Optimal Load Frequency Control

Sebastian Trip*, Michele Cucuzzella, Claudio De Persis, Arjan van der Schaft, Antonella Ferrara

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)
80 Downloads (Pure)

Abstract

This paper proposes a distributed sliding mode (SM) control strategy for optimal load frequency control (OLFC) in power networks, where besides frequency regulation, minimization of generation costs is also achieved (economic dispatch). We study a nonlinear power network of interconnected (equivalent) generators, including voltage and second-order turbine-governor dynamics. The turbine-governor dynamics suggest the design of a sliding manifold such that the turbine-governor system enjoys a suitable passivity property, once the sliding manifold is attained. This paper offers a new perspective on OLFC by means of SM control, and in comparison with the existing literature, we relax required dissipation conditions on the generation side and assumptions on the system parameters.
Original languageEnglish
Pages (from-to)1893-1906
Number of pages14
JournalIEEE Transactions on Control Systems Technology
Volume27
Issue number5
Early online date19-Jul-2018
DOIs
Publication statusPublished - Sep-2019

Keywords

  • Economic dispatch
  • incremental passivity
  • load frequency control (LFC)
  • power systems stability
  • sliding mode (SM) control
  • AUTOMATIC-GENERATION CONTROL
  • ECONOMIC-DISPATCH
  • CONSENSUS ALGORITHM
  • POWER GRIDS
  • PART I
  • OPTIMIZATION
  • STABILITY
  • NETWORK
  • ORDER

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