Special Issue "Voltage Stability of Microgrids in Power Systems"

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: 31 December 2020.

Special Issue Editors

Assoc. Prof. Dr. Nasser Hosseinzadeh
Guest Editor
School of Engineering, Deakin University, Melbourne, Victoria, Australia
Interests: power system stability in the presence of inverter-based renewable energy systems; microgrids and their impacts on power systems; intelligent control for microgrids and power system
Dr. Apel Mahmud
Guest Editor
Center for Smart Power and Energy Research, School of Engineering, Deakin University, Geelong, VIC 3216, Australia
Interests: power system modelling; power system stability and control; microgrids (AC, DC, and hybrid AC/DC); grid integration of renewable energy sources (small- and large-scale); transactive energy management and optimization for microgrids; nonlinear control theory and applications
Special Issues and Collections in MDPI journals
Dr. Ameen Gargoom
Guest Editor
Center for Smart Power and Energy Research, School of Engineering, Deakin University, Geelong, Vic 3216, Australia
Interests: modelling and control of renewable energy systems; smart inverters; planning; protection and control of distribution systems
Dr. Asma Aziz
Guest Editor
Center for Smart Power and Energy Research, School of Engineering, Deakin University, Geelong, Vic 3216, Australia
Interests: power system control; frequency regulation; microgrids; wind generation; distributed energy system modelling and integration

Special Issue Information

Dear Colleagues,

Electrical power systems are evolving, with a shift from large-scale centralized generators and one-way power flow to distributed generators and two-way power flows. Microgrids, as decentralized controllable small-scale grids with their own local generators and loads, are playing a key role towards this evolution. The integration of distributed energy resources (DERs) in the form of microgrids has been significantly increased in many countries around the world due to several technical, economic, and environmental benefits. However, microgrids pose many challenges to the power engineering community, and voltage stability is considered as the most significant one, particularly during transition from grid-connected mode to islanding mode. During such transitions, voltage stability of both the microgrid and the main grid would be of concern.

This Special Issue will focus on investigating the voltage stability problem of microgrids and various new approaches to solve this problem.

Topics of interest for this Special Issue include but are not limited to:

  1. Voltage stability issues in islanded and grid-connected microgrids;
  2. Voltage stability indices for microgrids;
  3. Voltage control and stability analysis of microgrids;
  4. The role of smart inverters for microgrid voltage stability;
  5. Modelling and control of energy storage systems to deal with the voltage stability;
  6. Microgrids planning in terms of enhancing voltage stability;
  7. Voltage stability issues in DC microgrids;
  8. Roles of protection systems on voltage stability;
  9. Applications of FACTS devices for voltage stability in microgrids.

This Special Issue solicits original theoretical and practical contributions along with review papers on any relevant area of the voltage stability in microgrids. We would like to cordially invite you for your contribution to this Special Issue.

Dr. Nasser Hosseinzadeh
Dr. Apel Mahmud
Dr. Ameen Gargoom
Dr. Asma Aziz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Electronics is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1500 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.


  • voltage stability
  • microgrids
  • power system stability
  • distributed energy resources (DER)
  • integration of distributed generators
  • power system security
  • power system strength
  • renewable energy

Published Papers

This special issue is now open for submission, see below for planned papers.

Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Title: Review of Voltage Stability of Power Systems with Renewable-Energy Inverter-Based Generators
Authors: Nasser Hosseinzadeh, Asma Aziz, Mahbub Rabbani, Apel Mahmud
Affiliation: Centre for Smart Power and Energy Research, School of Engineering, Faculty of Science, Engineering, and Built Environment, Deakin University, Australia
Abstract: The main purpose of developing microgrids (MGs) is to facilitate the integration of renewable energy sources (RESs) into the power grid. RESs are normally connected to the grid via power electronic inverters. With the integration of power electronic based RESs, power systems of the near future will have more inverter-based generators (IBG) instead of synchronous machines. IBGs have different characteristics as compared to synchronous generators (SGs), particularly with regard to their inertia and reactive power; Thus, their impact on the system dynamics is different, which imposes a number of technical and operational challenges. This paper reviews the literature on voltage stability of power systems which include a relatively high percentage of IBGs in the generator mix of the system.

Title: Modelling and Control of Hybrid Energy Storage for Microgrid Voltage Stability – Review and Framework
Authors: Rakibuzzaman Shah, S. M. Muyeen, Syed Islam, and Nasser Hosseinzadeh
Affiliation: Australia
Abstract: The microgrid is a local entity that consists of renewable-based distributed generations to obtain local power reliability and sustainable energy utilization. In microgrids, the limits of renewable energy sources and the sensitivity of load power consumption are the key factors contributing to voltage instability. Moreover, the reactive power-sharing in a microgrid is a challenging issue due to the compact size of the system, e.g., generator terminal voltage almost directly reflects the rest of the system. Therefore, the voltage control is mostly done by renewable generation and energy storage in microgrids. However, due to several limitations, an advanced energy storage system (ESS) is required to enhance microgrids' performance. This paper comprehensively reviews the hybrid energy storage system with respect to configurations, classifications, features, energy conversion, and evaluation process for microgrid applications to control voltage stability. The article also considers the power electronic topology and control framework suitable for the hybrid storage system. Finally, the paper investigates various limits associated with conventional control of energy storage. The outcome of this work is an archive of substantial research work in the topic area and the outlook on future efforts to be made.

Title: Agent-based Coordinated Control of Power Electronic Converters in a Microgrid
Authors: Maryam Nasri; Mahrdad Moallem; Herbert L. Ginn
Affiliation: Maryam Nasri: Assistant Professor, Department of Electrical Engineering Technology, Alfred State College of Technology, State University of New York, Alfred, NY 14802, USA; [email protected] Mahrdad Moallem: Professor, School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC, V3T 0A3, Canada; [email protected] Herbert L. Ginn: Professor, Department of Electrical Engineering, College of Engineering and Computing, University of South Carolina, Columbia, SC 29208, USA; [email protected]
Abstract: This paper presents the implementation of an agent-based architecture suitable for coordination of power electronic converters in stand-alone microgrids. To this end, a publish-subscribe agent architecture is utilized as a distributed microgrid control platform. The publish-subscribe architecture is identified based on a numerical analysis as a very scalable agent-based technology for distributed real-time coordination of power converters in microgrids. The developed framework is set up to deploy distributed optimal power sharing algorithms while maintaining sufficient voltage level and a deterministic time frame of a few tens of milliseconds for a system with tens of converters when multiple events might happen concurrently. Multiple agents take part in the supervisory control to determine optimum power sharing for the converters. To test the design, a notional shipboard system, including several converters, was used as a case study. The simulation results related to implementation of the agent-based publish-subscribe control system using Java Agent DEvelopment Framework (JADE) are presented.

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