Linear programming approach for state estimation incorporating phasor measurements

Kumar, Seshadri Sravan V and Thukaram, Dhadbanjan (2011) Linear programming approach for state estimation incorporating phasor measurements. In: 2011 International Conference on Power and Energy Systems (ICPS), 22-24 Dec. 2011, Chennai, India.

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Abstract

This paper presents methodologies for incorporating phasor measurements into conventional state estimator. The angle measurements obtained from Phasor Measurement Units are handled as angle difference measurements rather than incorporating the angle measurements directly. Handling in such a manner overcomes the problems arising due to the choice of reference bus. Current measurements obtained from Phasor Measurement Units are treated as equivalent pseudo-voltage measurements at the neighboring buses. Two solution approaches namely normal equations approach and linear programming approach are presented to show how the Phasor Measurement Unit measurements can be handled. Comparative evaluation of both the approaches is also presented. Test results on IEEE 14 bus system are presented to validate both the approaches.

Item Type:	Conference Proceedings
Publisher:	IEEE
Additional Information:	Copyright of this article belongs to IEEE.
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	17 Apr 2013 05:58
Last Modified:	17 Apr 2013 05:58
URI:	http://eprints.iisc.ac.in/id/eprint/46219

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