Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimal Distribution System Restoration with Microgrids and Distributed
  Generators   Increasing emphasis on reliability and resiliency call for advanced
distribution system restoration (DSR). The integration of grid sensors, remote
controls, and distributed generators (DG) brings about exciting opportunities
in DSR. In this context, this work considers the task of single-step
restoration of a single phase power distribution system. Different from
existing works, the devised restoration scheme achieves optimal formation of
islands without heuristically pre-identifying reference buses. It further
facilitates multiple DGs running within the same island, and establishes a
coordination hierarchy in terms of their PV/PQ operation modes. Generators
without black-start capability are guaranteed to remain connected to a
black-start DG or a substation. The proposed scheme models remotely-controlled
voltage regulators exactly, and integrates them in the restoration process.
Numerical tests on a modified IEEE 37-bus feeder demonstrate that the proposed
mixed-integer linear program (MILP) takes less than four seconds to handle
random outages of 1-5 lines. The scalability of this novel MILP formulation can
be attributed to the unique use of cycles and paths on the grid infrastructure
graph; the McCormick linearization technique; and an approximate power flow
model.

15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
19
The categories of this paper are: eess