The Effect of Phasor Measurement Units on the Accuracy of the Network Estimated Variables

The most commonly used weighted least square state estimator in power industry is nonlinear and formulated by using conventional measurements such as line flow and injection measurements. PMUs (Phasor Measurement Units) are gradually adding them to improve the state estimation process. In this paper...

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Bibliographic Details
Published in2009 Second International Conference on Developments in eSystems Engineering pp. 66 - 71
Main Authors Sangrody, H.A., Ameli, M.T., Meshkatoddini, M.R.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
conventional state estimation
Fluid flow measurement
Global Positioning System
hybrid state estimation
linear formulation
Nonlinear equations
phasor measurement unit
Phasor measurement units
Power measurement
Power system measurements
Power system security
State estimation
System testing
Voltage
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ISBN1424454018
9781424454013
DOI10.1109/DeSE.2009.45

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Summary:The most commonly used weighted least square state estimator in power industry is nonlinear and formulated by using conventional measurements such as line flow and injection measurements. PMUs (Phasor Measurement Units) are gradually adding them to improve the state estimation process. In this paper the way of corporation the PMU data to the conventional measurements and a linear formulation of the state estimation using only PMU measured data are investigated. Six cases are tested while gradually increasing the number of PMUs which are added to the measurement set and the effect of PMUs on the accuracy of variables are illustrated and compared by applying them on IEEE 14, 30 test systems.
ISBN:1424454018
9781424454013
DOI:10.1109/DeSE.2009.45