Distribution System State Estimation with Phasor Measurement Units

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Abstract:

With phasor measurement units (PMU) become available in the distribution system; the estimation accuracy of the distribution system state estimation (DSSE) is expected to be improved. Based on the weighted least square (WLS) approach, this paper proposed a new state estimator which takes into account the PMU measurements including voltage magnitude and phasor angle, and load current magnitude and phasor angle. Simulation results indicate that the estimation accuracy is obvious improve by adding PMU measurements to the DSSE. Furthermore, the estimation accuracy changes with the installation site of PMU, and can be maximized by choosing the installation site appropriately.

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687-690

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October 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] G. Sanchez-Ayala, J.R. Aguerc, D. Elizondo, and M. Lelic: Current trends on applications of PMUs in distribution systems, Innovative Smart Grid Technologies (ISGT), 2013 IEEE, (2013).

DOI: 10.1109/isgt.2013.6497923

Google Scholar

[2] J. Liu, J. Tang, F. Ponci, A. Monti, C. Muscas, and P. A. Pegoraro: Trade-offs in pmu deployment for state estimation in active distribution grids, IEEE Trans. Smart Grid, Vol. 3, no. 2 (2012), p.915.

DOI: 10.1109/tsg.2012.2191578

Google Scholar

[3] M. Pau, P. A. Pegoraro, and S. Sulis: Efficient branch-current-based distribution system state estimation including synchronized measurements, IEEE Trans. Instrum. Meas., Vol. 62, no. 9 (2013), p.2419.

DOI: 10.1109/tim.2013.2272397

Google Scholar

[4] R. Singh, B. C. Pal, and R. A. Jabr: Choice of estimator for distribution system state estimation, IET Gener., Transm., Distrib., Vol. 3 (2009), p.666.

DOI: 10.1049/iet-gtd.2008.0485

Google Scholar

[5] A. Abur and A. G. Exposito, Power System State Estimation: Theory and Implementation (Marcel Dekker, New York 2004).

Google Scholar

[6] D. Das, H. S. Nagi, and D. P. Kothari: Novel method for solving radial distribution networks, Proc. Inst. Elect. Eng., Gen., Transm., Distrib., Vol. 141, no. 4 (1994), p.291.

DOI: 10.1049/ip-gtd:19949966

Google Scholar