Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Equivalent Circuit Formulation for Power System State Estimation
  including PMUs   In this paper, a novel formulation for the power system state estimation is
proposed, based on the recently introduced equivalent split-circuit formulation
of the power flow problem. The formulation models the conventional and time
synchronized measurements simultaneously and contains a significantly lower
level of nonlinearity compared to the available hybrid state estimators. The
appropriate circuit models are derived for different types of measurements and
integrated into the existing circuit framework for the power flow problem. A
constrained optimization problem is then formulated to estimate the states of
the system in rectangular coordinates, while satisfying the circuit equations
and bounds on the measurement data. To further prove the concept and validate
the accuracy of the proposed formulation, several test cases are solved and the
results are presented and discussed.

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The categories of this paper are: atom-ph
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The categories of this paper are: funct-an
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The categories of this paper are: quant-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: cs
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The categories of this paper are: nucl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-bio
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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The categories of this paper are: physics
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The categories of this paper are: adap-org
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The categories of this paper are: gr-qc
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat