NDLI: Rectangular coordinates state estimation of electrical power system using singular value decomposition

Content Provider	IEEE Xplore Digital Library
Author	Rakpenthai, C. Uatrongjit, S.
Copyright Year	2009
Description	Author affiliation: Department of Electrical Engineering, Faculty of Engineering, Chiang Mai University, 50200, Thailand (Uatrongjit, S.) \|\| Department of Electrical Engineering, School of Engineering, Naresuan University Phayao, 56000, Thailand (Rakpenthai, C.)
Abstract	This paper presents a new state estimation method based on the equivalent current measurement model and rectangular coordinate state variables. The bus voltage phasors in rectangular form are considered as the estimated states. Voltage magnitude, power measurements and estimated voltage buses are employed to find equivalent current phasor measurements. With this formulation, the measurement equation can be formulated as a linear-like system and the solution can be obtained by iterative computation using a constant gain matrix. For some system, this gain matrix may be ill-condition. To overcome the problem of ill-condition, the singular value decomposition (SVD) is employed in this work. Numerical simulation results on the IEEE 30-and 57-bus systems are compared with the conventional method based on polar form. It is found that the proposed method requires lesser computational time than the conventional method with SVD.
Starting Page	1
Ending Page	4
File Size	462775
Page Count	4
File Format	PDF
ISBN	9781424435067
DOI	10.1109/ICIT.2009.4939506
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-02-10
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	State estimation Power systems Singular value decomposition Voltage Power system modeling Current measurement Power measurement Matrix decomposition Power system measurements Gain measurement singular value decomposition rectangular coordinates
Content Type	Text
Resource Type	Article

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