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Mostrando ítems 21-30 de 1023
Optimal Power Flow with Voltage-Sensitive Loads in Distribution Networks
(Ieee, 2016-01-01)
Traditionally, the optimal power flow (OPF) assumes a constant (active and reactive) power load model and thus it neglects the effect of the voltage sensitiveness of power load injections. As a consequence, the results ...
Optimal power flow via interior-exterior method
(Ieee, 2007-01-01)
This paper presents a new approach to the resolution of the Optimal Power Flow problem. In this approach the inequality constraints are treated by the Modified Barrier and Primal-Dual Logarithmic Barrier methods. The ...
Effects of the intrinsic three-dimensionalization of laminar separation bubbles on the amplification of external disturbances
(2018-01-01)
The size and behavior of laminar separation bubbles is strongly related to the laminar-to-turbulent transition process that takes place downstream of the separation of the laminar boundary layer. Wind-tunnel experiments ...
Flow hydrodynamics and contaminant transport in the flow past a lateral square cavity
(2015)
Turbulent flows past lateral cavities play an important
role in the transport of contaminants in rivers and streams. Cavities are surface
storage zones, where large-scale unsteady coherent structures are the leading ...
Simplified architecture of a neurofuzzy controller applied on industrial systems for fluid flow control
(Institute of Electrical and Electronics Engineers (IEEE), 2000-01-01)
This work presents a simplified architecture of a neurofuzzy controller for general purpose applications that tries to minimize the processing used in the several stages of hazy modeling of systems. The basic procedures ...
An Improved Parameterization Technique for the Continuation Power Flow
(IEEE, 2010-01-01)
Continuation methods have been long used in P-V curve tracing due to their efficiency in the resolution of ill-conditioned cases, with close to singular Jacobian matrices, such as the maximum loading point of power systems. ...
Flow rate and hydrochemistry in areas of sand mining activities
(Wit Press, 2006-01-01)
This investigation reports the results of a study realized in areas related to the development of sand mining activities, which belong to CRS-Mineragao Industria e Comercio Ltd. and Sibelco Mineracao Ltd. Both areas are ...
A Time-domain Harmonic Power-Flow Analysis in Electrical Energy Distribution Networks, Using Norton Models for Non-linear Loading
(Ieee, 2014-01-01)
The purpose of this paper is to present the application of a three-phase harmonic propagation analysis time-domain tool, using the Norton model to approach the modeling of non-linear loads, making the harmonics currents ...
A decision support system for DC optimal power flow analysis on large scale interconnected system
(2011-01-01)
This paper proposes a decision support system for the National Interconnected System in Brazil. The developed decision support system is a tool that uses a DC optimal power flow to obtain the operating status of the network ...
Three-phase optimal power flow based on Affine Arithmetic
(2021-09-15)
This paper presents a non-linear stochastic mathematical formulation for the three-phase optimal power flow problem, which addresses the uncertainties of both the load and the renewable generation using the self-validation ...