Distributed secondary control for isolated microgrids under malicious attacks

Lin Yu Lu, Hao Jan Liu, Hao Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High penetration of distributed generation units in microgrids has caused severe frequency stability challenges. Coordinated secondary control can resolve this problem by judiciously dispatching active power resources using the communication infrastructure that supports the microgrid operations. In this paper, a distributed secondary control design for isolated microgrids is developed, and the effects of malicious attacks on the communication links are also investigated. The proposed design architecture consists of the local droop control in the primary level and a distributed dual-ascent based update in the secondary level. The objective of the latter is to achieve proportional power sharing while maintaining the system nominal frequency. Two types of malicious attacks on the distributed secondary control, namely, the link and node attacks, are investigated. To mitigate these attacks, detection and localization strategies are developed by checking the values of the dual-ascent update iterates. Numerical simulations on an isolated microgrid have been performed to demonstrate the effectiveness of the proposed control design and countermeasures against malicious attacks.

Original languageEnglish (US)
Title of host publicationNAPS 2016 - 48th North American Power Symposium, Proceedings
EditorsDavid Wenzhong Gao, Jun Zhang, Amin Khodaei, Eduard Muljadi
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509032709
DOIs
StatePublished - Nov 17 2016
Event48th North American Power Symposium, NAPS 2016 - Denver, United States
Duration: Sep 18 2016Sep 20 2016

Publication series

NameNAPS 2016 - 48th North American Power Symposium, Proceedings

Other

Other48th North American Power Symposium, NAPS 2016
CountryUnited States
CityDenver
Period9/18/169/20/16

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Keywords

  • Cyber-Security
  • Distributed Control
  • Droop Control
  • Frequency Stability
  • Malicious Attack
  • Microgrid

ASJC Scopus subject areas

  • Strategy and Management
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Lu, L. Y., Liu, H. J., & Zhu, H. (2016). Distributed secondary control for isolated microgrids under malicious attacks. In D. W. Gao, J. Zhang, A. Khodaei, & E. Muljadi (Eds.), NAPS 2016 - 48th North American Power Symposium, Proceedings [7747929] (NAPS 2016 - 48th North American Power Symposium, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/NAPS.2016.7747929