DOI:10.1007/s40565-018-0434-0 |
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Preventive reinforcement under uncertainty for islanded microgrids with electricity and natural gas networks |
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Net amount: 738 |
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Author:
Saeed D. MANSHADI1, Mohammad E. KHODAYAR2
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Author Affiliation:
1. Department of Electrical and Computer Engineering, San Diego State University, San Diego 92182, USA
2. Department of Electrical Engineering, Southern Methodist University, Dallas 75205, USA
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Abstract: |
This paper presents an approach to determine the
vulnerable components in the electricity and natural gas
networks of an islanded microgrid that is exposed to
deliberate disruptions. The vulnerable components in the
microgrid are identified by solving a bi-level optimization
problem. The objective of the upper-level problem (the
attacker’s objective) is to maximize the expected operation
cost of microgrid by capturing the penalties associated with
the curtailed electricity and heat demands as a result of the
disruption. In the lower-level problem, the adverse effects
of disruptions and outages in the electricity and natural gas
networks are mitigated by leveraging the available
resources in the microgrid (the defender’s objective). The
uncertainties in the electricity and heat demand profiles
were captured by introducing scenarios with certain probabilities.
The formulated bi-level optimization problem
provides effective guidelines for the microgrid operator to
adopt the reinforcement strategies in the interdependent
natural gas and electricity distribution networks and
improve the resilience of energy supply. The presented
case study shows that as more components are reinforced
in the interdependent energy networks, the reinforcement
cost is increased and the expected operation cost as a result
of disruption is decreased. |
Keywords: |
Microgrid, Reinforcement, Natural gas,
Electricity, Deliberate disruption, Uncertainty |
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Online Time:2018/11/11 |
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