A State Estimator Using SCADA and Synchronized Phasor Measurements

Authors

  • Vedran Kirinčić University of Rijeka, Faculty of Engineering, Department of Power Systems Vukovarska 58, 51000 Rijeka, Croatia
  • Srđan Skok University of Rijeka, Faculty of Engineering, Department of Power Systems Vukovarska 58, 51000 Rijeka, Croatia
  • Dubravko Franković University of Rijeka, Faculty of Engineering, Department of Power Systems Vukovarska 58, 51000 Rijeka, Croatia

Keywords:

Hybrid state estimator, Phasor Measurement Unit (PMU), power system state estimation, synchrophasors

Abstract

A state estimator is presented, in which conventional measurements from the SCADA system and synchrophasors available from Phasor Measurement Units (PMUs) are used. A recursive algorithm for the part of the system observable by PMUs is applied, in which multiple sets of synchrophasors are processed. The obtained state estimate is then used together with SCADA measurements in an iterative procedure to estimate the state of the entire power system. The developed methodology was tested on IEEE test systems with 30 and 57 buses as well as on the model of the Croatian transmission system. The proposed solution is comparable in convergence with the classical state estimator and other hybrid models, whereas it enhances state estimation accuracy and filtering of measurement errors.

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Published

2016-12-20

How to Cite

[1]
V. Kirinčić, S. Skok, and D. Franković, “A State Estimator Using SCADA and Synchronized Phasor Measurements”, IJECES, vol. 7, no. 2, pp. 61-69, Dec. 2016.

Issue

Vol. 7 No. 2 (2016)

Section

Preliminary Communications