Multilevel Dynamic Master-Slave Control Strategy for Resilience Enhancement of Networked Microgrids

Rui Huang, Yu Xiao, Mouhai Liu, Xia Shen, Wen Huang, Yelun Peng and John Shen
Additional contact information
Rui Huang: State Grid Hunan Electric Power Limited Company, Changsha 410008, China
Yu Xiao: State Grid Hunan Electric Power Limited Company, Changsha 410008, China
Mouhai Liu: State Grid Hunan Electric Power Limited Company, Changsha 410008, China
Xia Shen: College of Electrical and Information Engineering, Hunan University, Changsha 410008, China
Wen Huang: College of Electrical and Information Engineering, Hunan University, Changsha 410008, China
Yelun Peng: College of Electrical and Information Engineering, Hunan University, Changsha 410008, China
John Shen: College of Electrical and Computer Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA

Energies, 2022, vol. 15, issue 10, 1-21

Abstract: Conventional power management methods of networked microgrids (NMGs) are limited to the failure of pinned communication terminals and heavy communication burdens. This paper proposes a multilevel dynamic master-slave control strategy via two-level dynamic leaders to realize the resilience enhanced power management of NMGs. The first level dynamic leader with considerations of distributed energy resources (DERs) feature is selected to guide the output of DERs and achieve the power management within individual microgrid (MG). Subsequently, the secondary level leader considering each MG feature is selected among the bidirectional interlinking converters (BICs), whose signals would be shared with other BICs by communication to achieve power management among MGs. Moreover, the local weight selecting method (LWSM) is proposed to automatically select the two-level dynamic leaders according to the real-time system operation state. Compared with conventional methods, the communication among MGs is essentially realized through the dynamic DER leaders instead of pinned ones. Therefore, unreliability issues in the event of pinned terminal outage and converters’ communication failure can be fully addressed and the communication bus within each only needs to transmit one DER’s signals. The proposed strategy can be also extended to NMGs with various topologies and provide the “plug and play” capabilities of DERs or MGs. Finally, the effectiveness and feasibility of the proposed strategy are verified through the PSCAD/EMTDC platform.

Keywords: networked microgrids; dynamic master-slave; resilience enhancement; low bandwidth communication; converter control (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/15/10/3698/pdf (application/pdf)
https://www.mdpi.com/1996-1073/15/10/3698/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:15:y:2022:i:10:p:3698-:d:818391

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().