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Multiarea optimal power flow using multiobjective evolutionary algorithm
(2009-12-17)
In this work the multiarea optimal power flow (OPF) problem is decoupled into areas creating a set of regional OPF subproblems. The objective is to solve the optimal dispatch of active and reactive power for a determined ...
Substitution-newton-Raphson method for the solution of electric network equations
(2006-12-01)
The power flow problem, in transmission networks, has been well solved, for most cases, using Newton-Raphson method (NR) and its decoupled versions. Generally speaking, the solution of a non-linear system of equations ...
Iterative solution of panel method discretizations for potential flow problems. The modal multipolar preconditioning
(John Wiley & Sons Ltd, 2000-12)
The iterative solution of linear systems arising from panel method discretization of three-dimensional (3D) exterior potential problems coming mainly from aero-hydrodynamic engineering problems, is discussed. An original ...
A family of vortex rings and a variational application to potential flows around three-dimensional bodies
(Associação Brasileira de Engenharia e Ciências Mecânicas - ABCM, 2008)
A variational formulation and solution of general three-dimensional potential flows gave rise to the construction of a special family of ‘trial functions’. This family is composed by circular-sector vortex rings, here named ...
A nonlinear panel method in the time domain for seakeeping flow problems
(Taylor & Francis Ltd, 2002-12)
A Lagrangian-type panel method, in the time domain, is proposed for potential flows with a moving free surface. After a spatial semi-discretization, with a low-order scheme, the instantaneous velocity-potential and normal ...
Fast acoustic scattering predictions with non-uniform potential flow effects
(Abcm Brazilian Soc Mechanical Sciences & EngineeringRio De Janeiro RjBrasil, 2013)
Detection of seepage paths in small earth dams using the self-potential method (SP)
(2020-07-01)
The application of geoelectric methods, such as induced polarization (IP), the electrical resistivity and the self-potential (SP), presents an important indirect study methodology in several areas of geology, such as mining, ...
Modified barrier method for optimal power flow problem
(2004-12-01)
In this paper is presented a new approach for optimal power flow problem. This approach is based on the modified barrier function and the primal-dual logarithmic barrier method. A Lagrangian function is associated with the ...
Modified barrier method for optimal power flow problem
(2004-12-01)
In this paper is presented a new approach for optimal power flow problem. This approach is based on the modified barrier function and the primal-dual logarithmic barrier method. A Lagrangian function is associated with the ...
Allocating reforestation areas for sediment flow minimization: an integer programming formulation and a heuristic solution method
(2012-06)
Policy and decision makers dealing with environmental conservation and land use planning often require identifying potential sites for contributing to minimize sediment flow reaching riverbeds. This is the case of reforestation ...