Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Videos
Videos
Thesis submission
Thesis submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Contact us
Contact us
A Robust PMU Based Three-Phase State Estimator Using Modal Decoupling
Date
2014-09-01
Author
Göl, Murat
Abur, Ali
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
14
views
0
downloads
Cite This
Power systems do not always operate under fully balanced conditions because of unbalanced loads and untransposed transmission lines. Under such conditions, commonly used positive sequence equivalent will no longer be valid. On the other hand, use of full three-phase model will add significant computational burden for the considered application. This paper describes a simple approach to address this issue for the specific application of state estimation. The main idea is to exploit the linearity of the estimation problem when the system is measured solely by phasor measurements. The linear problem lends itself to decoupling via modal transformation unlike the nonlinear formulation with SCADA measurements. A further improvement is introduced via the use of the least absolute value (LAV) estimator, which has the desirable property of automatic bad-data rejection. The paper illustrates how a robust LAV estimator designed for a positive sequence model can be efficiently used for the solution of an unbalanced three-phase state estimation problem.
Subject Keywords
Least absolute value
,
Modal transformation
,
Phasor measurement units
,
State estimation
,
Three-phase circuits
URI
https://hdl.handle.net/11511/40232
Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
DOI
https://doi.org/10.1109/tpwrs.2014.2299756
Collections
Department of Electrical and Electronics Engineering, Article
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
M. Göl and A. Abur, “A Robust PMU Based Three-Phase State Estimator Using Modal Decoupling,”
IEEE TRANSACTIONS ON POWER SYSTEMS
, vol. 29, no. 5, pp. 2292–2299, 2014, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40232.