electronics
Review
Voltage Stability of Power Systems with Renewable-Energy
Inverter-Based Generators: A Review
Nasser Hosseinzadeh
1,
* , Asma Aziz
2
, Apel Mahmud
1
, Ameen Gargoom
1
and Mahbub Rabbani
1
Citation:
Hosseinzadeh, N.; Aziz, A.;
Mahmud, A.; Gargoom, A.; Rabbani, M.
Voltage Stability of Power Systems
with Renewable-Energy Inverter-Based
Generators: A Review. Electronics 2021,
10, 115. https://doi.org/10.3390/
electronics10020115
Received: 2 December 2020
Accepted: 31 December 2020
Published: 7 January 2021
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4.0/).
1
Centre for Smart Power and Energy Research, School of Engineering, Faculty of Science, Engineering,
and Built Environment, Deakin University, Geelong, VIC 3216, Australia;
apel.mahmud@deakin.edu.au (A.M.); a.gargoom@deakin.edu.au (A.G.); m.rabbani@deakin.edu.au (M.R.)
2
School of Engineering, Edith Cowan University, Perth, WA 6027, Australia; asma.aziz@ecu.edu.au
*
Correspondence: nasser.hosseinzadeh@deakin.edu.au; Tel.: +61-3522-73815
Abstract:
The main purpose of developing microgrids (MGs) is to facilitate the integration of renew-
able energy sources (RESs) into the power grid. RESs are normally connected to the grid via power
electronic inverters. As various types of RESs are increasingly being connected to the electrical power
grid, power systems of the near future will have more inverter-based generators (IBGs) instead of
synchronous machines. Since IBGs have significant differences in their characteristics compared to
synchronous generators (SGs), particularly concerning their inertia and capability to provide reactive
power, their impacts on the system dynamics are different compared to SGs. In particular, system
stability analysis will require new approaches. As such, research is currently being conducted on the
stability of power systems with the inclusion of IBGs. This review article is intended to be a preface
to the Special Issue on Voltage Stability of Microgrids in Power Systems. It presents a comprehensive
review of the literature on voltage stability of power systems with a relatively high percentage of
IBGs in the generation mix of the system. As the research is developing rapidly in this field, it is
understood that by the time that this article is published, and further in the future, there will be many
more new developments in this area. Certainly, other articles in this special issue will highlight some
other important aspects of the voltage stability of microgrids.
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