Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Security Assessment of Electricity Distribution Networks under DER Node
  Compromises   This article focuses on the security assessment of electricity Distribution
Networks (DNs) with vulnerable Distributed Energy Resource (DER) nodes. The
adversary model is simultaneous compromise of DER nodes by strategic
manipulation of generation set-points. The loss to the defender (DN operator)
includes loss of voltage regulation and cost of induced load control under
supply-demand mismatch caused by the attack. A 3-stage
Defender-Attacker-Defender (DAD) game is formulated: in Stage 1, the defender
chooses a security strategy to secure a subset of DER nodes; in Stage 2, the
attacker compromises a set of vulnerable DERs and injects false generation
set-points; in Stage 3, the defender responds by controlling loads and
uncompromised DERs. Solving this trilevel optimization problem is hard due to
nonlinear power flows and mixed-integer decision variables. To address this
challenge, the problem is approximated by a tractable formulation based on
linear power flows. The set of critical DER nodes and the set-point
manipulations characterizing the optimal attack strategy are computed. An
iterative greedy approach to compute attacker-defender strategies for the
original nonlinear problem is proposed. These results provide guidelines for
optimal security investment and defender response in pre- and post-attack
conditions, respectively.

30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph