Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical Investigations on Quasi Steady-State Model for Voltage
  Stability: Limitations and Nonlinear Analysis   In this paper, several numerical examples to illustrate limitations of Quasi
Steady-State (QSS) model in long-term voltage stability analysis are presented.
In those cases, the QSS model provided incorrect stability assessment. Causes
of failure of the QSS model are explained and analyzed in nonlinear system
framework. Sufficient conditions of the QSS model for correct approximation are
suggested.

12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
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The categories of this paper are: math-ph
16
The categories of this paper are: stat