NDLI: PMU placement to reduce state estimation bias considering parameters uncertainty

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PMU placement to reduce state estimation bias considering parameters uncertainty

Content Provider	IEEE Xplore Digital Library
Author	Davoudi, M. Abdelhadi Muhammed, E.
Copyright Year	2015
Description	Author affiliation: Electr. & Comput. Eng. Dept., Dalhousie Univ., Halifax, NS, Canada (Abdelhadi Muhammed, E.) \|\| Power Syst. Dev. & Network Security, Milan Univ. & RSE S.p.A., Milan, Italy (Davoudi, M.)
Abstract	In this paper, a novel analysis is performed to determine the bias of Weighted Least Squares (WLS) power system state estimator to find out how much different placements of Phasor Measurement Unit (PMU) will affect the state estimator's bias behavior whereas the network parameters are subjected to different quantities of uncertainties for a given measurement uncertainty. The lack of unbiasedness is an important defect of state estimators hence, for each network parameters uncertainty the bias of state estimator is computed. To determine how much the state estimator is biased, using the classical hypothesis test approach a threshold is assigned. The analysis is simulated on IEEE 14-Bus power network test case. To have an idea about the visualization of bias test concept, the bias of voltage magnitude and phase angle errors versus the parameters uncertainty are shown for a PMU placement. Then, for different PMU placements, the values of parameters uncertainty that the state estimator is less biased are shown. The novelty of this analysis is that it finds the location of PMUs to have the state estimator less biased, considering different network parameters uncertainties.
Starting Page	55
Ending Page	58
File Size	228753
Page Count	4
File Format	PDF
e-ISBN	9781479981571
DOI	10.1109/PSPC.2015.7094929
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-14
Publisher Place	Iran
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network Parameters Uncertainty Bias of Estimator Power measurement Phasor Measurement Unit (PMU) PMU Placement Weighted Least Squares (WLS) Phasor measurement units Power System State Estimation Standards
Content Type	Text
Resource Type	Article

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