Computational enhancements to the power system state estimator at harmonic frequencies

Maged Najjar, G. T. Heydt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A study on the application of estimation theory to predict harmonic bus voltages and line currents which cannot or are not measured directly is proposed. The methodology is based on measurements, state estimators, and harmonic system modeling. A hybrid of quadratic and non-quadratic criterion-based techniques utilizing singular value decomposition is used with a feasible application to large-scale problems. Contrary to the fundamental case, the Jacobian matrix of the power system equations at harmonic frequencies is shown to be ill-conditioned. A robust numerical technique, using linear transformations to scale the Jacobian matrix, is suggested to render the estimation problem solvable in a practical environment.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual North American Power Symposium
Place of PublicationLos Alamitos, CA, United States
PublisherPubl by IEEE
Pages44-53
Number of pages10
ISBN (Print)081862115X
StatePublished - 1991
Externally publishedYes
EventProceedings of the 22nd Annual North American Power Symposium - Auburn, AL, USA
Duration: Oct 15 1990Oct 16 1990

Other

OtherProceedings of the 22nd Annual North American Power Symposium
CityAuburn, AL, USA
Period10/15/9010/16/90

Fingerprint

Jacobian matrices
Linear transformations
Singular value decomposition
Electric potential

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Najjar, M., & Heydt, G. T. (1991). Computational enhancements to the power system state estimator at harmonic frequencies. In Proceedings of the Annual North American Power Symposium (pp. 44-53). Los Alamitos, CA, United States: Publ by IEEE.

Computational enhancements to the power system state estimator at harmonic frequencies. / Najjar, Maged; Heydt, G. T.

Proceedings of the Annual North American Power Symposium. Los Alamitos, CA, United States : Publ by IEEE, 1991. p. 44-53.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Najjar, M & Heydt, GT 1991, Computational enhancements to the power system state estimator at harmonic frequencies. in Proceedings of the Annual North American Power Symposium. Publ by IEEE, Los Alamitos, CA, United States, pp. 44-53, Proceedings of the 22nd Annual North American Power Symposium, Auburn, AL, USA, 10/15/90.
Najjar M, Heydt GT. Computational enhancements to the power system state estimator at harmonic frequencies. In Proceedings of the Annual North American Power Symposium. Los Alamitos, CA, United States: Publ by IEEE. 1991. p. 44-53
Najjar, Maged ; Heydt, G. T. / Computational enhancements to the power system state estimator at harmonic frequencies. Proceedings of the Annual North American Power Symposium. Los Alamitos, CA, United States : Publ by IEEE, 1991. pp. 44-53
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