Distributed Event-Triggered Control of DC Microgrids With Input Saturation and Time Delay Constraints

This article proposes a novel distributed event-triggered secondary control approach subject to input saturation and time delay in communication links among distributed generators (DGs) to achieve both voltage restoration and proportional current sharing in islanded DC microgrids (MGs). In contrast...

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Published in	IEEE systems journal Vol. 17; no. 3; pp. 4786 - 4797
Main Authors	Najafirad, Mohammad Javad, Dehkordi, Nima Mahdian, Hamzeh, Mohsen, Nazaripouya, Hamidreza
Format	Journal Article
Language	English
Published	New York IEEE 01.09.2023 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects	Communication networks Current sharing Data exchange Delay effects Delays Distributed generation Distributed secondary control Event triggered control Frequency control input saturation Microgrids microgrids (MGs) Stability analysis Time lag Voltage control Voltage measurement voltage regulation
Online Access	Get full text
ISSN	1932-8184 1937-9234
DOI	10.1109/JSYST.2023.3240564

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Abstract	This article proposes a novel distributed event-triggered secondary control approach subject to input saturation and time delay in communication links among distributed generators (DGs) to achieve both voltage restoration and proportional current sharing in islanded DC microgrids (MGs). In contrast to periodic communication, sampled-data exchanges only occur when the triggering condition is satisfied. Therefore, communication instants and computation burdens will be reduced significantly. Compared with the existing event-triggered mechanism, this article investigates conditions for achieving consensus in the presence of both input saturation and time delay constraints. The Lyapunov synthesis is employed to derive the stability and convergence analysis of the proposed event-triggering condition and ensure the Zeno-free of the system. Finally, the effectiveness of the proposed controller is validated by simulating its performance under various scenarios in an islanded DC MG using the MATLAB/SimPowerSystems Toolbox.
AbstractList	This article proposes a novel distributed event-triggered secondary control approach subject to input saturation and time delay in communication links among distributed generators (DGs) to achieve both voltage restoration and proportional current sharing in islanded DC microgrids (MGs). In contrast to periodic communication, sampled-data exchanges only occur when the triggering condition is satisfied. Therefore, communication instants and computation burdens will be reduced significantly. Compared with the existing event-triggered mechanism, this article investigates conditions for achieving consensus in the presence of both input saturation and time delay constraints. The Lyapunov synthesis is employed to derive the stability and convergence analysis of the proposed event-triggering condition and ensure the Zeno-free of the system. Finally, the effectiveness of the proposed controller is validated by simulating its performance under various scenarios in an islanded DC MG using the MATLAB/SimPowerSystems Toolbox.
Author	Najafirad, Mohammad Javad Hamzeh, Mohsen Nazaripouya, Hamidreza Dehkordi, Nima Mahdian
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SubjectTerms	Communication networks Current sharing Data exchange Delay effects Delays Distributed generation Distributed secondary control Event triggered control Frequency control input saturation Microgrids microgrids (MGs) Stability analysis Time lag Voltage control Voltage measurement voltage regulation
Title	Distributed Event-Triggered Control of DC Microgrids With Input Saturation and Time Delay Constraints
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