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Power system state estimator with inclusion of time-synchronized phasor measurements

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1 Author(s)
Presada, V.I. ; Power Eng. Dept., Univ. Politeh. of Bucharest, Bucharest, Romania

State estimation provides the platform for advanced security monitoring applications in control centers. It determines a best estimate of the current actual power system based on available SCADA measurements and power system model data. Traditional power system state estimation has been undergoing an essential change because of the extensive application of Phasor Measurement Unit (PMU). PMU data provides the direct measurement of state which can significantly simplify the traditional state estimator and does not require any major changes of the existing state estimator. It is anticipated a gradual migration towards full PMU implementation for utility power systems. The logical direction is towards full observability with PMUs. Due to cost considerations, it is expected that utilities will execute a phased installation of PMUs, that is, batches of PMUs being installed through time. A MATLAB application was developed and simulations were done on IEEE 14 bus system and on IEEE 30 bus system.

Published in:

Optimization of Electrical and Electronic Equipment (OPTIM), 2012 13th International Conference on

Date of Conference:

24-26 May 2012