MODELLING OF MEASUREMENTS CORRELATION IN THE STATE ESTIMATION

Authors

  • Milena Lisov Autor

DOI:

https://doi.org/10.24867/05BE47Lisov

Keywords:

WLS state estimation, correlation of measurements, modelling of correlation of measurements, digital devices, pseudo-measurements

Abstract

In this paper a WLS algorithm for the state estimation is described. The example is used for modelling of correlation of measurements from digital devices and for modelling correlation of pseudo-measurements. At the end, obtained results are analyzed.

References

[1] A. Monticelli, State estimation in electric power systems, a generalized approach, Kluwer Academic Publishers, Norwell, 1999.
[2] Y. Chen: Weighted-Least-Square (WLS) State Estimation, PNNL, decembar 2015.
[3] E. Caro, A. J. Conejo, R. Mingez: Power System State Estimation Considering Measurement Dependencies, IEEE, novembar 2009.
[4] C. Muscas, M. Pau, P. A. Pegoraro, S. Sulis: Effects of Measurements and Pseudo-measurements Correlation in Distribution System State Estimation, IEEE, 2012.
[5] V. Krsman: Specijalizovani algoritmi za detekciju, identifikaciju i estimaciju loših podataka u elektrodistributivnim mrežama, doktorska disertacija, Fakultet tehničkih nauka, Novi Sad, 2014.
[6] C. Muscas, M. Pau, P. A. Pegoraro, S. Sulis: Impact of Input Data Correlation on Distribution System State Estimation, IEEE, 2013.

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Published

2019-11-07

Issue

Vol. 34 No. 11 (2019): Proceedings of the Faculty of Technical Sciences

Section

Electrotechnical and Computer Engineering