Multiagent-based Nonlinear Generalized Minimum Variance Control for Islanded AC Microgrids

• Published in: IEEE transactions on power systems Vol. 39; no. 1; pp. 1 - 13
• Main Authors: Habibi, Seyed Iman, Sheikhi, Mohammad Amin, Khalili, Tohid, Abadi, Seyyed Ali Ghorashi Khalil, Bidram, Ali, Guerrero, Josep M.
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.01.2024; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Control systems; Distributed generation; Electric potential; Electric power systems; Frequency control; Load modeling; Mathematical models; Microgrid; Microgrids; Multiagent systems; Nonlinear Generalized Minimum Variance; Power system stability; Restoration; Secondary Control; Voltage; Voltage control; Volterra Model
• ISSN: 0885-8950; 1558-0679
• DOI: 10.1109/TPWRS.2023.3239793

Voltage regulation, frequency restoration, and reactive/active power sharing are the crucial tasks of the microgrid's secondary control, especially in the islanding operating mode. Because sensors and communication links in a microgrid are subject to noise, it is of paramount value to design a noise-resilient secondary voltage and frequency control. This paper proposes a minimum variance control approach for the secondary control of AC microgrids that can effectively perform noise attenuation, voltage/frequency restoration, and reactive/active power sharing. To this end, the nonlinear generalized minimum variance (NGMV) control approach is introduced to the islanded microgrid's secondary control system. The effectiveness of the proposed control approach is verified by simulating two microgrid test systems in MATLAB.