Load Shedding Frequency Management of Microgrids Using Hierarchical Fuzzy Control

Mehran Keivanimehr, Harold R. Chamorro, Mehdi Zareian-Jahromi, Felix Rafael Segundo-Sevilla, Josep M. Guerrero, Charalambos Konstantinou

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

4 Scopus citations


Frequency control is one important issue in autonomous operating mode of Microgrids (MGs). In stand-alone microgrids, when generation power is not enough, it is inevitable to shed some parts of the load. This paper presents a decentralized fuzzy controller for optimal load shedding in MGs. The proposed controller which is separately installed for each load center uses a hierarchical fuzzy controller approach to make the optimal decision. Three inputs of the hierarchical fuzzy controller are the power of non-critical load, the load energy not supplied and its interruption frequency. From a specific time of the past, these inputs are calculated for all load centers, and updated periodically. The non-critical part of the loads which can be shed to survive network. Each decentralized controller of the loads has a bilateral communication with the microgrid central controller to transact some information, periodically. Simulation results on a typical microgrid with several load buses showing the effectiveness of the proposed method.
Original languageEnglish (US)
Title of host publication2021 World Automation Congress (WAC)
ISBN (Print)978-1-6654-2109-6
StatePublished - 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-10-14


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