Synthesizing Sparse and Delay-Robust Distributed Secondary Frequency Controllers for Microgrids

Sultan Alghamdi, Johannes Schiffer, Emilia Fridman

Research output: Contribution to journalArticlepeer-review

Abstract

Consensus-based control schemes experience increasing popularity in the context of secondary frequency control in microgrids. Fundamental aspects in their practical implementation are the design of the communication topology as well as robustness with respect to both time-varying communication delays and exogenous disturbances. Motivated by this, we propose a design procedure for a consensus-based secondary frequency controller that ensures robustness with respect to heterogeneous fast-varying communication delays and simultaneously provides the option to trade off the $L{2}$ -gain performance against the number of required communication links. Our design criterion is equilibrium-independent and based on the Lyapunov-Krasovskii method for interval time-varying delays together with the descriptor method. The efficacy of the proposed approach is demonstrated by using numerical experiments on the CIGRE benchmark medium-voltage distribution network.

Original languageEnglish
Article number9036092
Pages (from-to)691-703
Number of pages13
JournalIEEE Transactions on Control Systems Technology
Volume29
Issue number2
DOIs
StatePublished - Mar 2021

Keywords

  • Consensus algorithms
  • distributed cooperative control
  • microgrid stability
  • microgrids
  • multiagent systems
  • secondary control
  • smart grid applications
  • time-delay systems

Fingerprint

Dive into the research topics of 'Synthesizing Sparse and Delay-Robust Distributed Secondary Frequency Controllers for Microgrids'. Together they form a unique fingerprint.

Cite this