NDLI: Restoring Solution of Electric Network Equations: An Approach Using the Augmented Lagrangean Algorithm

Content Provider	IEEE Xplore Digital Library
Author	Barboza, L.V. Francisco, J.B. Zambaldi, M.C.
Copyright Year	2003
Abstract	This paper presents and discuss a new, robust approach to restore the solution of electric network equations in electric power systems. The unsolvable power flow is modelled as an constrained optimization problem. The objective function is the sum of squared real and reactive power mismatches at the system buses that are available to load shedding. The equality constraints are the real and reactive power mismatches at null injection buses and/or at buses whose power demands must be integrality supplied due to technical and/or economical criteria. The mathematical model is solved using an algorithm based on Augmented Lagrangean method that considers the special structure of the proposed problem. The inner iterations of the proposed approach are solved using the Levenberg-Marquardt algorithm. Numerical results for both IEEE test systems and a real equivalent power system from South-Southeast region of Brazil are presented to analyze and the performance of the proposed methodology.
Starting Page	670
Ending Page	677
Page Count	8
File Size	582295
File Format	PDF
ISSN	15480992
Volume Number	8
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Jacobian matrices Mathematical model Equations Reactive power Load flow Amplitude modulation Robustness Unsolvable power flow Augmented Lagrangian algorithm Levenberg-Marquardt algorithm Restoring solvability
Content Type	Text
Resource Type	Article
Subject	Computer Science Electrical and Electronic Engineering

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