Frequency and Voltage Control Techniques through Inverter-Interfaced Distributed Energy Resources in Microgrids: A Review

Yousef Asadi, Mohsen Eskandari (), Milad Mansouri, Andrey V. Savkin () and Erum Pathan
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Yousef Asadi: Department of Electrical Engineering, Bu-Ali Sina University, Hamedan 6516863611, Iran
Mohsen Eskandari: School of Electrical Engineering and Telecommunication, University of New South Wales, Sydney 2052, Australia
Milad Mansouri: Department of Electrical Engineering, Bu-Ali Sina University, Hamedan 6516863611, Iran
Andrey V. Savkin: School of Electrical Engineering and Telecommunication, University of New South Wales, Sydney 2052, Australia
Erum Pathan: Electronics Engineering Department, Quaid-e-Awam University of Engineering, Science and Technology, Nawabshah 67450, Pakistan

Energies, 2022, vol. 15, issue 22, 1-29

Abstract: Microgrids (MG) are small-scale electric grids with local voltage control and power management systems to facilitate the high penetration and grid integration of renewable energy resources (RES). The distributed generation units (DGs), including RESs, are connected to (micro) grids through power electronics-based inverters. Therefore, new paradigms are required for voltage and frequency regulation by inverter-interfaced DGs (IIDGs). Notably, employing effective voltage and frequency regulation methods for establishing power-sharing among parallel inverters in MGs is the most critical issue. This paper provides a comprehensive study, comparison, and classification of control methods including communication-based, decentralized, and construction and compensation control techniques. The development of inverter-dominated MGs has caused limitations in employing classical control techniques due to their defective performance in handling non-linear models of IIDGs. To this end, this article reviews and illustrates advanced controllers that can deal with the challenges that are created due to the uncertain and arbitrary impedance characteristics of IIDGs in dynamics/transients.

Keywords: AC microgrids; advanced controllers; autonomous operation; frequency control; impedance shaping; inverter-interfaced distributed generation; power-sharing (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 references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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