Journal ArticleDOI
Optimal Power Flow By Newton Approach
TLDR
In this paper, a direct simultaneous solution for all of the unknowns in the Lagrangian function on each iteration is proposed, where each iteration minimizes a quadratic approximation of the Lagrangeian.Abstract:
The classical optimal power flow problem with a nonseparable objective function can be solved by an explicit Newton approach. Efficient, robust solutions can be obtained for problems of any practical size or kind. Solution effort is approximately proportional to network size, and is relatively independent of the number of controls or binding inequalities. The key idea is a direct simultaneous solution for all of the unknowns in the Lagrangian function on each iteration. Each iteration minimizes a quadratic approximation of the Lagrangian. For any given set of binding constraints the process converges to the Kuhn-Tucker conditions in a few iterations. The challenge in algorithm development is to efficiently identify the binding inequalities.read more
Citations
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Journal ArticleDOI
Optimal power flow using particle swarm optimization
TL;DR: In this paper, an evolutionary-based approach to solve the optimal power flow (OPF) problem is presented. And the proposed approach has been examined and tested on the standard IEEE 30bus test system with different objectives that reflect fuel cost minimization, voltage profile improvement, and voltage stability enhancement.
Journal ArticleDOI
Optimal reactive dispatch through interior point methods
TL;DR: An implementation of an interior point method to the optimal reactive dispatch problem is described in this article, which is based on the primal-dual algorithm and the numerical results in large scale networks (1832 and 3467 bus systems) have shown that this technique can be very effective to some optimal power flow applications.
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A review of selected optimal power flow literature to 1993. II. Newton, linear programming and interior point methods
TL;DR: A survey of literature on optimal power flow from 1968-93 can be found in this article, where Newton-based, linear programming, and interior point methods of solution are considered.
Journal ArticleDOI
Optimal power flow by enhanced genetic algorithm
TL;DR: A number of functional operating constraints, such as branch flow limits, load bus voltage magnitude limits, and generator reactive capabilities, are included as penalties in the GA fitness function (FF).
Journal ArticleDOI
A survey of the optimal power flow literature
M. Huneault,Francisco D. Galiana +1 more
TL;DR: A survey of publications in the fields of optimal power flow and dispatching can be found in this article, where the authors suggest a classification of methods based on the choice of optimization techniques and a single flow-chart-type figure, which indicates the relationship between methods, their chronology, and their popularity.
References
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Journal ArticleDOI
Optimal Power Flow Solutions
TL;DR: A practical method is given for solving the power flow problem with control variables such as real and reactive power and transformer ratios automatically adjusted to minimize instantaneous costs or losses by Newton's method, a gradient adjustment algorithm for obtaining the minimum and penalty functions to account for dependent constraints.
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.
Optimal power dispatch -a comprehensive survey
TL;DR: In this article, the progress of optimal dispatch, also called economic dispatch, since its inception to the present in chronological sequence is reviewed, and the classic single area as well as multi-area cases are summarized and the important theoretical work in optimal load flows suggested to date is reviewed.
Journal ArticleDOI
Optimal power dispatchߞA comprehensive survey
TL;DR: In this article, the progress of optimal dispatch, also called economic dispatch, since its inception to the present in chronological sequence is reviewed, and the classic single area as well as multi-area cases are summarized and important theoretical work in optimal load flows suggested to date reviewed.
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.