NDLI: Power system state estimation using IP barrier method

Content Provider	IEEE Xplore Digital Library
Author	Chitte, K. Swarup, K.S.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. Eng., Indian Inst. of Technol., Madras, India (Chitte, K.; Swarup, K.S.)
Abstract	A new formulation of the power system state estimation problem and a new solution technique is presented. The formulation allows for inequality constraints such as generator VAr limits and transformer tap ratio limits. The solution technique uses a logarithmic barrier function to treat inequality constraints. Non-quadratic criteria for power system state estimation have to facilitate bad data detection and identification. The weighted least absolute value criteria have the desired bad data rejection property. This paper shows that the logarithmic barrier function can accommodate inequality constraints, and then applying the Newton method to solve the KKT equation leads to a problem structure which is identical to that of the non-linear least square problem. The number of iterations needed for convergence does not increase linearly with problem size, unlike the LP algorithm.
Sponsorship	IEEE Region 10
Starting Page	460
Ending Page	465
File Size	272046
Page Count	6
File Format	PDF
ISBN	0780381629
DOI	10.1109/TENCON.2003.1273365
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-10-15
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power systems State estimation Nonlinear equations Power system measurements Power system reliability Power system modeling Power system control Control systems Databases Power generation
Content Type	Text
Resource Type	Article

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