Structural risk minimization based weighted least squares power system state estimation method
A weighted least squares, structural risk technology, applied in computing, electrical digital data processing, special data processing applications, etc., to achieve the effect of good engineering application prospects
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0024] The invention relates to a WLS model (SWLS) based on the SRM criterion, which conforms to the SRM idea in the statistical learning theory, and can obtain an estimation result closer to the true value of the state variable under limited measurement conditions.
[0025] The following first gives the traditional ERM-based WLS model (Empirical Risk Minimization Based Weighted Least Squares, EWLS), that is, the traditional WLS state estimation model; then gives the SWLS model;
[0026] Finally, the solution method of SWLS is dedu...
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