NDLI: Fast super decoupled state estimator for power systems

Content Provider	IEEE Xplore Digital Library
Author	Roy, L. Mohammed, T.A.
Copyright Year	1969
Abstract	A new method is developed and presented in this paper to solve the state estimation problem of power systems. The method involves application of a rotational operator to the state and measurement functions resulting in an automatic decoupling of the Jacobian and gain matrices. The elements of these matrices are different from those in the existing decoupled state estimators. A solution is obtained through alternately iterating the active and reactive equations using the constant gain matrix and avoiding the approximation due to the decoupling of the Jacobian matrix. Digital simulation studies on a variety of systems indicate that the new estimator is comparable to the best available version of the fast decoupled state estimator in terms of core size, solution time, mathematical structure, convergence behavior, accuracy, robustness, reliability and versatility. Systems with low and high R/X ratio lines, heavy loading, ill-conditioning, and low/high reference bus voltage are tested. Typical results are provided for illustration.
Sponsorship	IEEE Power Engineering Society
Starting Page	1597
Ending Page	1603
Page Count	7
File Size	545870
File Format	PDF
ISSN	08858950
Volume Number	12
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	State estimation Power systems Jacobian matrices Power system measurements Gain measurement Rotation measurement Equations Digital simulation Robustness Voltage
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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