Distributed noise-resilient economic dispatch strategy for islanded microgrids

Feixiong Chen, Minyou Chen, Zhao Z. Xu, Josep M. Guerrero, Le Yi Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

Economic dispatch (ED) plays an important role in economic operation of the microgrid (MG). However, the communication links among distributed generators (DGs) may practically be corrupted by additive noise, resulting in erroneous deviations from ED commands. To deal with such issues, this study proposes a distributed noise-resilient ED strategy for islanded MG. Owing to consensus-based implementation, the proposed ED strategy is implemented in a fully distributed manner, which enables peer-to-peer communication among DGs without the necessity of a central controller. In addition, the proposed ED strategy involves post-iterate averaging technique to further enhance its convergence under additive communication noise. In this way, different from the existing ED strategies, the proposed ED strategy is fully distributed and resilient to the communication noise. Furthermore, the effectiveness of the proposed ED strategy is evaluated on an islanded MG, where the communication links are corrupted by different levels of additive noise. Finally, in order to fully take account of the uncertainty and stochastic nature of different operation scenarios, the Monte-Carlo simulations are carried out, of which the simulation results demonstrate that the proposed ED strategy is superior to the existing ED strategies, in terms of the convergence property under additive communication noise.

Original languageEnglish
Pages (from-to)3029-3039
Number of pages11
JournalIET Generation, Transmission and Distribution
Volume13
Issue number14
DOIs
Publication statusPublished - 23 Jul 2019

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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