24   Artículos

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en línea
David Lionel Bernal-Romero, Oscar Danilo Montoya and Andres Arias-Londoño    
The problem of the optimal reactive power flow in transmission systems is addressed in this research from the point of view of combinatorial optimization. A discrete-continuous version of the Chu & Beasley genetic algorithm (CBGA) is proposed to mode... ver más
Revista: Computers    Formato: Electrónico

 
en línea
Marko Kolenc, Igor Papic and Bo?tjan Bla?ic    
This article deals with the influence of distributed generation (DG) on distribution line losses with respect to voltage profile. The article focuses on the development of a control strategy to minimize the grid losses and assure fairness regarding react... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Jae-Kun Lyu, Jae-Haeng Heo, Jong-Keun Park and Yong-Cheol Kang    
This paper presents a novel probabilistic optimization algorithm for simultaneous active and reactive power dispatch in power systems with significant wind power integration. Two types of load and wind-speed uncertainties have been assumed that follow no... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Pyeong-Ik Hwang, Seung-Il Moon and Seon-Ju Ahn    
This paper proposes a vector-controlled distributed generator (DG) model for a power flow based on a three-phase current injection method (TCIM). In order to represent the DG models in the power flow, steady-state phase current output equations are formu... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Laura Patricia García-Pineda and Oscar Danilo Montoya    
This research deals with the problem regarding the optimal siting and sizing of distribution static compensators (D-STATCOMs) via the application of a master?slave optimization technique. The master stage determines the nodes where the D-STATCOMs must be... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
Piyapath Siratarnsophon, Vinicius C. Cunha, Nicholas G. Barry and Surya Santoso    
The capability of routing power from one phase to another, interphase power flow (IPPF) control, has the potential to improve power systems efficiency, stability, and operation. To date, existing works on IPPF control focus on unbalanced compensation usi... ver más
Revista: Clean Technologies    Formato: Electrónico

 
en línea
Yu Fu, Shuqing Hao, Junhao Zhang, Liwen Yu, Yuxin Luo and Kuan Zhang    
This paper proposes an active?reactive power collaborative scheduling model with cluster division for the flexible distributed energy resources (DERs) of smart-building systems to resolve the high complexity of the centralized optimal scheduling of massi... ver más
Revista: Buildings    Formato: Electrónico

 
en línea
Prakash Burade,Rajendra Sadafale,Anand Satpute     Pág. 214 - 225
A Repeated Power Flow with FACTS devices including ATC is used to evaluate the feasible ATC value within real and reactive power generation limits, line thermal limits, voltage limits and FACTS operation limits. An IEEE-30 bus system is used to demonstra... ver más
Revista: IRA-International Journal of Technology & Engineering    Formato: Electrónico

 
en línea
Javier Andrés Mora-Burbano, Cristian David Fonseca-Díaz and Oscar Danilo Montoya    
This paper deals with the problem regarding the optimal placement and sizing of distribution static compensators (D-STATCOMs) in radial and meshed distribution networks. These grids consider industrial, residential, and commercial loads within a daily op... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
David G. Wilson, Rush D. Robinett III, Giorgio Bacelli, Ossama Abdelkhalik and Ryan G. Coe    
This paper extends the concept of Complex Conjugate Control (CCC) of linear wave energy converters (WECs) to nonlinear WECs by designing optimal limit cycles with Hamiltonian Surface Shaping and Power Flow Control (HSSPFC). It will be shown that CCC for ... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
F. Roos; R.C. Bansal    
This study reports on a case study in Grootegeluk Mine: Exxaro Coal, Lephalale, South Africa, in terms of power factor correction (PFC), load flow, harmonic frequency scans and harmonic voltage distortion analyses. The DIgSilent PowerFactory software was... ver más
Revista: Journal of Energy in Southern Africa    Formato: Electrónico

 
en línea
Pablo Ledesma, Francisco Arredondo and Edgardo D. Castronuovo    
The increasing penetration of non-synchronous, renewable energy in modern power systems displaces synchronous generation and affects transient stability. This is just one of the factors that has led to preventive curtailment of renewable energy sources i... ver más
Revista: Energies    Formato: Electrónico

 
en línea
Harald Hetzner, Christoph Schmid, Stephan Tremmel, Karsten Durst and Sandro Wartzack    
Tungsten-modified hydrogenated amorphous carbon coatings (a-C:H:W) were deposited on high speed steel by reactive magnetron sputtering of a tungsten carbide target in an argon-ethine atmosphere. The deposition parameters, sputtering power, bias voltage, ... ver más
Revista: Coatings    Formato: Electrónico

 
en línea
Othman Hasnaoui, Mehdi Allagui    
The main causes of wind farms disconnection from the grid is the three-phase grid faults at the point common coupling (PCC) e.g. the voltage dip. The use of a Static Synchronous Compensator (STATCOM) which is from the family of Flexible AC Transmission S... ver más
Revista: Journal of Energy in Southern Africa    Formato: Electrónico

 
en línea
German Francisco Barreto-Parra, Brandon Cortés-Caicedo and Oscar Danilo Montoya    
This paper proposes an interconnection of the MATLAB and GAMS software interfaces, which were designed based on a master-slave methodology, to solve the mixed-integer nonlinear programming (MINLP) model problem associated with the problem regarding the o... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
Ghazanfar Mehdi, Sara Bonuso and Maria Grazia De Giorgi    
Re-ignition of aeroengines under high altitude conditions is of great importance to the safety and use of lean-burn flame. This study is focused on the experimental and numerical characterization of flow dynamics and flame re-ignition in a rectangular bu... ver más
Revista: Aerospace    Formato: Electrónico

 
en línea
Milton David Serna-Manrique, Daniel Escobar-Rincón, Santiago Ospina-Arroyave, Daniel Alejandro Pineda-Hernández, Yury Paola García-Gallego and Elisabeth Restrepo-Parra    
In this work, thin films of TaN were synthesized on 304 steel substrates using the reactive DC sputtering technique from a tantalum target in a nitrogen/argon atmosphere. All synthesis parameters such as gas ratio, pressure, gas flow, and substrate dista... ver más
Revista: Coatings    Formato: Electrónico

 
en línea
Oscar Danilo Montoya, Alexander Molina-Cabrera, Luis Fernando Grisales-Noreña, Ricardo Alberto Hincapié and Mauricio Granada    
This paper addresses the phase-balancing problem in three-phase power grids with the radial configuration from the perspective of master?slave optimization. The master stage corresponds to an improved version of the Chu and Beasley genetic algorithm, whi... ver más
Revista: Computation    Formato: Electrónico

 
en línea
Matthew Allmark, Rodrigo Martinez, Stephanie Ordonez-Sanchez, Catherine Lloyd, Tim O?Doherty, Grégory Germain, Benoît Gaurier and Cameron Johnstone    
Tidal devices are likely to faced with shear flows and subjected to various wave climates. The paper presents an experimental study of the combined impacts of shear profile and irregular waves on the loading of a 1/20th scale device operating at peak pow... ver más
Revista: Journal of Marine Science and Engineering    Formato: Electrónico

 
en línea
Fiza Zafar, Alicia Cordero, Husna Maryam and Juan R. Torregrosa    
Power flow problems can be solved in a variety of ways by using the Newton?Raphson approach. The nonlinear power flow equations depend upon voltages Vi" role="presentation">|????|Vi V i and phase angle δ" role="presentation">??d d . An electri... ver más
Revista: Algorithms    Formato: Electrónico

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