Indonesian Journal of Electrical Engineering and Computer Science
Vol 29, No 1: January 2023

Decentralized secondary control for frequency regulation based on fuzzy logic control in islanded microgrid

Ilyas Bennia (Ferhat Abbas Setif1 University)
Abdelghani Harrag (Ferhat Abbas Setif1 University)
Yacine Daili (Ferhat Abbas Setif1 University)
Allal Bouzid (ICAM, Site de Toulouse, Toulouse)
Josep M. Guerrero (Aalborg University)



Article Info

Publish Date
01 Jan 2023

Abstract

This paper presents a fuzzy-based decentralized secondary control for frequency restoration and active power-sharing in an islanded microgrid, this controller uses the local frequency error to generate an extra term for compensating the deviation and maintaining accurate active power-sharing. No communication infrastructures are needed, event detection, time dependent-protocols, and state estimation are not required. Its design and implementation are straightforward, also, it offers quick dynamic frequency recovery with accurate active power-sharing. To verify the validity of the proposed controller, several tests have been carried out: frequency restoration and active power-sharing during load disturbances, synchronization with plug and play (PnP) ability, as well the communication latency impact. Moreover, the effect of data drop-out and interferences were analyzed in real-time simulation using Truetime. The results have shown the high capability and the fast response of frequency restoration while maintaining the active power-sharing, no oscillations and ripples were presented in steady-state response, likewise, a smooth dynamic response during PnP test is observed. The communication latency and interferences have no impact on the proposed controller that showing a significant improvement in settling time 50% without frequency packet losses and 81%, 90% in the presence of 30% and 70% of frequency packet losses respectively.

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