Title :
Fast decoupled state estimators
Author :
Monticelli, A. ; Garcia, A.
Author_Institution :
UNICAMP-Campinas, Sao Paulo, Brazil
Abstract :
The authors present a new framework for fast decoupled state estimators. Decoupling is seen not as zeroing coupling submatrices in the problem Jacobian, but as a two-step procedure to solve full-Newton equations without major approximations. In addition to presenting a sound derivation of the standard version of the fast decoupled state estimator the authors propose a new version which presents better performance when applied to systems with critical r/x ratios. Test results as well as illustrative examples are presented and discussed.<>
Keywords :
State estimation; power systems; state estimation; fast decoupled state estimators; full-Newton equations; Convergence; Iterative methods; Jacobian matrices; Least squares approximation; Load flow; Nonlinear equations; Power measurement; State estimation; Testing; Voltage;
Conference_Titel :
Power Industry Computer Application Conference, 1989. PICA '89, Conference Papers
Conference_Location :
Seattle, WA, USA
DOI :
10.1109/PICA.1989.38971
