Mitigation strategies for communication networks induced impairments in autonomous microgrids control: A review
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Date
2021-12-16
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AIMS Electronics and Electrical Engineering
Abstract
The advancement in communication technology and the availability of intelligent
electronic devices (IEDs) have impacted positively on the penetration of renewable energy sources
(RES) into the main electricity grid. High penetration of RES also come along with greater demand
for more effective control approaches, congestion management techniques, and microgrids optimal
dispatch. Most of the secondary control methods of microgrid systems in the autonomous mode
require communication links between the distributed generators (DGs) for sharing power information
and data for control purposes. This article gives ample review on the communication induced
impairments in islanded microgrids. In the review, attention is given to communication induced delay,
data packet loss, and cyber-attack that degrades optimal operations of islanded microgrids. The
review also considered impairments modelling, the impact of impairments on microgrids operation
and management, and the control methods employed in mitigating some of their negative impacts.
The paper revealed that innovative control solutions for impairment mitigation rather than the
development of new high-speed communication infrastructure should be implemented for microgrid
control. It was also pointed out that a sparse communication graph is the basis for communication
topology design for distributed secondary control in the microgrid.
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Keywords
packet loss; packet delay; cyber-attack; autonomous microgrid; communication impairments; microgrid control
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