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

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 em...

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Main Authors: C. Rakpenthai, S. Uatrongjit
Format: Conference Proceeding
Published: 2018
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Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67650305358&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/59512
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-595122018-09-10T03:17:31Z Rectangular coordinates state estimation of electrical power system using singular value decomposition C. Rakpenthai S. Uatrongjit Computer Science Engineering 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. 2018-09-10T03:16:28Z 2018-09-10T03:16:28Z 2009-07-17 Conference Proceeding 2-s2.0-67650305358 10.1109/ICIT.2009.4939506 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67650305358&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/59512
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Computer Science
Engineering
spellingShingle Computer Science
Engineering
C. Rakpenthai
S. Uatrongjit
Rectangular coordinates state estimation of electrical power system using singular value decomposition
description 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.
format Conference Proceeding
author C. Rakpenthai
S. Uatrongjit
author_facet C. Rakpenthai
S. Uatrongjit
author_sort C. Rakpenthai
title Rectangular coordinates state estimation of electrical power system using singular value decomposition
title_short Rectangular coordinates state estimation of electrical power system using singular value decomposition
title_full Rectangular coordinates state estimation of electrical power system using singular value decomposition
title_fullStr Rectangular coordinates state estimation of electrical power system using singular value decomposition
title_full_unstemmed Rectangular coordinates state estimation of electrical power system using singular value decomposition
title_sort rectangular coordinates state estimation of electrical power system using singular value decomposition
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=67650305358&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/59512
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