کلیدواژهها
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Energy hubs (EH), flexibility, integrated energy
systems (IES), pre- and post-disaster management, resilience
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چکیده
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The proliferation of power-to-gas technology can propound
a tailored platform to physically integrate power systems
and natural gas grids. These integrated energy systems with different
spatial-temporal properties not only could provide significant
flexibilities to properly mitigate existing and imminent challenges,
but also could increase the robustness of power systems in facing
unpredicted conditions. Keeping this in mind, this article outlines
a novel conservative two-stage model to improve the resilience of
distribution systems against extreme hurricanes. To this end, at
the first stage, a pre-disaster scheduling is executed to increase preparedness
and robustness of the power system before approaching
the tornado. The preparedness index is defined as the sum of energy
stored in the electric vehicles and natural gas storages that should
be maximized. Subsequently, at the second stage after the recognition
of the tornado, some proactive post-disaster actions such as grid
partitioning, network reconfiguration, demand-side management,
and distributed series reactors are applied to minimize the degradation
and vulnerability of the power system. An integrated gas
and electricity power flow is proposed in a linear computationally
efficient fashion capable of modeling the worst-case scenario. The
effectiveness of the model is examined on a distribution grid with
multiple energy hubs.
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