Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Necessary Condition for Power Flow Insolvability in Power Distribution
  Systems with Distributed Generators   This paper proposes a necessary condition for power flow insolvability in
power distribution systems with distributed generators (DGs). We show that the
proposed necessary condition indicates the impending singularity of the
Jacobian matrix and the onset of voltage instability. We consider different
operation modes of DG inverters, e.g., constant-power and constant-current
operations, in the proposed method. A new index based on the presented
necessary condition is developed to indicate the distance between the current
operating point and the power flow solvability boundary. Compared to existing
methods, the operating condition-dependent critical loading factor provided by
the proposed condition is less conservative and is closer to the actual power
flow solution space boundary. The proposed method only requires the present
snapshots of voltage phasors to monitor the power flow insolvability and
voltage stability. Hence, it is computationally efficient and suitable to be
applied to a power distribution system with volatile DG outputs. The accuracy
of the proposed necessary condition and the index is validated by simulations
on a distribution test system with different DG penetration levels.

30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
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The categories of this paper are: eess
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
1
The categories of this paper are: cs