Quantifying the Resilience Enhancement of an Active Distribution System through Multi-Microgrid

Mishra, Dillip Kumar

Quantifying the Resilience Enhancement of an Active Distribution System through Multi-Microgrid

Mishra, Dillip Kumar

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Publication Type:: Thesis
Issue Date:: 2022

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Field	Value	Language
dc.contributor.author	Mishra, Dillip Kumar
dc.date.accessioned	2023-03-20T03:51:57Z
dc.date.available	2023-03-20T03:51:57Z
dc.date.issued	2022
dc.identifier.uri	http://hdl.handle.net/10453/167745
dc.description	University of Technology Sydney. Faculty of Engineering and Information Technology.	en_US.UTF-8
dc.description.abstract	Unfavorable events (e.g., natural disasters or man-made attacks) that occur on the mainland can affect the reliability/resiliency of power system networks. Such events may cause load demand–generation imbalance, total power outage, and partial power outage, thereby damaging the electrical infrastructure and incurring a high economic loss. A power outage is defined as a loss of load connectivity or absence of electrical connection between the generation or distribution stations and the consumer end. The utility grid plays a significant role in the power flow from generating station to the prosumer end. However, during a highly disruptive event, a utility grid may be unable to supply power to end-users because of component failure. To solve this problem, a power system at the local stage must manage the needs of local load demand. The evolution of the technology that governs the utility grids are causing severe issues in disruptive events, thereby necessitating the concept of resilience. The increased frequency of disasters results in increased power system failures and recovery costs, making the system unreliable and nonresilient. Hence, the formation of microgrids (MGs) and multi-MGs (MMGs) can prevent total power outages and support the social economy and flexible energy management scheme. Besides, deploying MMGs with renewable energy sources is ideal because of affordability, decarbonization, supply security, and resiliency. On the other hand, concerning the series of outage events and long-term events, mobile services such as crews and mobile energy storage devices are crucial, which can quickly recover the critical load according to the priority, thereby reducing the impacts on the system. Furthermore, the increasing frequency of extreme events has increased power outages worldwide, including in Australia. Thus, a resilient infrastructure must be constructed to reduce power system damages and benefit the social and economic impacts. Considering the above concerns, this thesis contributes to the modern power distribution system resiliency study with four manifolds: (a) significance of distributed energy resources on resilience, (b) resilience quantification framework in the wake of extreme events, (c) resilient control-based multi-microgrid scheme against threats, and (d) novel resilient energy market framework considering the microgrid outage conditions. Each technical chapter verifies its framework using various scenario studies, and enhancement of resilience is also illustrated. Finally, this thesis offers an approach to the resilient power distribution system considering sustainability, energy security, and energy equity.	en_US.UTF-8
dc.format	Thesis (PhD)
dc.language.iso	en_US	en_US.UTF-8
dc.relation	https://opus.lib.uts.edu.au/bitstream/10453/167745/2/02whole.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	The author owns the copyright in this thesis including all reproduction and reuse rights for the work. The work may not be altered without the permission of the copyright owner. Attribution is essential when quoting or paraphrasing from this thesis.
dc.rights	© 2022 Dillip Kumar Mishra
dc.rights	au.edu.uts.lib/ppc
dc.title	Quantifying the Resilience Enhancement of an Active Distribution System through Multi-Microgrid	en_US.UTF-8
dc.type	Thesis
utslib.copyright.status	open_access	*

Abstract:

Unfavorable events (e.g., natural disasters or man-made attacks) that occur on the mainland can affect the reliability/resiliency of power system networks. Such events may cause load demand–generation imbalance, total power outage, and partial power outage, thereby damaging the electrical infrastructure and incurring a high economic loss. A power outage is defined as a loss of load connectivity or absence of electrical connection between the generation or distribution stations and the consumer end. The utility grid plays a significant role in the power flow from generating station to the prosumer end. However, during a highly disruptive event, a utility grid may be unable to supply power to end-users because of component failure. To solve this problem, a power system at the local stage must manage the needs of local load demand. The evolution of the technology that governs the utility grids are causing severe issues in disruptive events, thereby necessitating the concept of resilience. The increased frequency of disasters results in increased power system failures and recovery costs, making the system unreliable and nonresilient. Hence, the formation of microgrids (MGs) and multi-MGs (MMGs) can prevent total power outages and support the social economy and flexible energy management scheme. Besides, deploying MMGs with renewable energy sources is ideal because of affordability, decarbonization, supply security, and resiliency. On the other hand, concerning the series of outage events and long-term events, mobile services such as crews and mobile energy storage devices are crucial, which can quickly recover the critical load according to the priority, thereby reducing the impacts on the system. Furthermore, the increasing frequency of extreme events has increased power outages worldwide, including in Australia. Thus, a resilient infrastructure must be constructed to reduce power system damages and benefit the social and economic impacts. Considering the above concerns, this thesis contributes to the modern power distribution system resiliency study with four manifolds: (a) significance of distributed energy resources on resilience, (b) resilience quantification framework in the wake of extreme events, (c) resilient control-based multi-microgrid scheme against threats, and (d) novel resilient energy market framework considering the microgrid outage conditions. Each technical chapter verifies its framework using various scenario studies, and enhancement of resilience is also illustrated. Finally, this thesis offers an approach to the resilient power distribution system considering sustainability, energy security, and energy equity.

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