An Asymptotic Stability Guaranteed Droop-Free Control Scheme for Normalized Power Consensus in Microgrids

Kunyu Zuo, Lei Wu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Droop-free control, adopted to manage distributed energy resources (DERs) in microgrids, has been studied to improve drawbacks of droop control such as large frequency deviations and power-sharing errors. Although existing droop-free control schemes can effectively share the power burden among controllable DERs with respect to their rated capacities, a theoretical understanding of system asymptotic stability remains an outstanding issue. To this end, this paper proposes a new droop-free control scheme that adds a stabilizer at the receiver end of the neighboring communication. The major advantage is that the proposed system can reach the normalized power consensus and theoretically guarantee asymptotic stability. Numerical simulations illustrate that the proposed design can maintain similar performance as the existing droop-free control schemes in terms of consensus accuracy and dynamic deviation, while effectively guaranteeing the system's asymptotic stability.

Original languageEnglish
Title of host publication2023 IEEE Power and Energy Society General Meeting, PESGM 2023
ISBN (Electronic)9781665464413
DOIs
StatePublished - 2023
Event2023 IEEE Power and Energy Society General Meeting, PESGM 2023 - Orlando, United States
Duration: 16 Jul 202320 Jul 2023

Publication series

NameIEEE Power and Energy Society General Meeting
Volume2023-July
ISSN (Print)1944-9925
ISSN (Electronic)1944-9933

Conference

Conference2023 IEEE Power and Energy Society General Meeting, PESGM 2023
Country/TerritoryUnited States
CityOrlando
Period16/07/2320/07/23

Keywords

  • Droop-free control
  • asymptotic stability
  • normalized power consensus

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