Journal ArticleDOI
Efficient bounding method for linear contingency analysis
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TLDR
A very efficient contingency analysis method for detecting branch megawatt flow violation is presented, based on the linear incremental-power-flow model and consequently does not consider reactive power.Abstract:
A very efficient contingency analysis method for detecting branch megawatt flow violation is presented. The efficiency stems from the use of a bounding criterion that drastically reduces the number of branch-flow computations and limits checking, and the use of state-of-the-art compensation and sparse matrix/vector methods. The method requires no offline setup, is highly efficient, and can handle contingencies with any time of network topology and load/generation changes. The method is based on the linear incremental-power-flow model and consequently does not consider reactive power. >read more
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Book
Modern Power Systems Analysis
TL;DR: Stochastic Security Analysis of Electrical Power Systems and Power System Transient Stability Analysis and Small-Signal Stability Analysis of Power Systems.
Journal ArticleDOI
On-line power system security analysis
N.J. Balu,T. Bertram,Anjan Bose,V. Brandwajn,G. Cauley,David Curtice,A. A. Fouad,L. Fink,M. G. Lauby,Bruce Wollenberg,J. N. Wrubel +10 more
TL;DR: A broad overview of on-line power system security analysis is provided in this paper, with the intent of identifying areas needing additional research and development, such as external system modeling and external system analysis.
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A security based approach to composite power system reliability evaluation
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Impact of Security on Power Systems Operation
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Journal ArticleDOI
Complete bounding method for AC contingency screening
V. Brandwajn,M. G. Lauby +1 more
TL;DR: A new contingency analysis technique is described which overcomes the deficiencies of existing methods and has been implemented in a production-grade program designed for real-time applications.
References
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Journal ArticleDOI
Fast Decoupled Load Flow
TL;DR: This paper describes a simple, very reliable and extremely fast load-flow solution method that is attractive for accurate or approximate off-and on-line routine and contingency calculations for networks of any size, and can be implemented efficiently on computers with restrictive core-store capacities.
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Sparse Vector Methods
TL;DR: The efficiency of the sparse vector methods is verified by tests on a 156-bus, a 1598-bus and a 2265-bus system and the new methods are significantly faster than the established sparse matrix techniques.
Journal ArticleDOI
Sparsity-Oriented Compensation Methods for Modified Network Solutions
O. Alsac,B. Stott,W. F. Tinney +2 more
TL;DR: The paper gives a unified derivation and analysis of compensation methods for the efficient solution of network problems involving matrix modifications, including the removal, addition and splitting of tiodes.
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Partial Matrix Refactorization
Sherman M. Chan,V. Brandwajn +1 more
TL;DR: Two new partial refactorization methods for sparse matrices are presented that are significantly more efficient than existing techniques, and have the potential to speed up a number of important power system problems.
Journal ArticleDOI
Bound Estimates of the Severity of Line Outages in Power System Contingency Analysis and Ranking
TL;DR: In this paper, the effect of line outages on the real power flows of a system is analyzed using the DC load flow model and it is shown that the impact of the out4ge of line jk on the power flow of an arbitrary line lm can be bounded above and below by a series of progressively tighter values which in the limit correspond to the exact load flow solution.