Search Results - "Passos Filho, Joao Alberto"

Coordinated tuning of power system stabilizers using bio-inspired algorithms by Peres, Wesley, de Oliveira, Edimar José, Passos Filho, João Alberto, da Silva Junior, Ivo Chaves

“…•Comparison study among three bio-inspired optimization algorithms.•Didactic approach to a complex problem in power systems analysis.•Evaluation of a…”
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A Full-Newton AC-DC Power Flow Methodology for HVDC Multi-Terminal Systems and Generic DC Network Representation by Vasconcelos, Leandro Almeida, Passos Filho, João Alberto, Marcato, André Luis Marques, Junqueira, Giovani Santiago

“…The use of Direct Current (DC) transmission links in power systems is increasing continuously. Thus, it is important to develop new techniques to model the…”
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Hydrothermal systems operation planning using a discretization of energy interchange between subsystems by Conceição, Wellington C., Marcato, André L.M., Ramos, Tales Pulinho, Filho, João Alberto Passos, Brandi, Rafael B.S., David, Pedro Américo M.S., da Silva Júnior, Ivo Chaves

“…•We present an alternative approach to solve hydrothermal systems operation planning.•This proposed methodology uses stochastic dynamic programming (SDP).•The…”
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Steady-state security assessment in distribution systems with high penetration of distributed energy resources by Avila, Othon Ferreira, Passos Filho, João Alberto, Peres, Wesley

“…•A new methodology for the Steady-state security region for the security assessment of distribution systems with the presence of DER.•Consideration of the…”
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A new unbalanced three-phase governor power flow formulation based on the current injections method by Alves, Guilherme de Oliveira, Pereira, José Luiz Rezende, Passos Filho, João Alberto

“…•A new unbalanced three-phase governor power flow formulation.•Both synchronous generators and droop-based distributed generators modeling.•Allows the…”
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Loading margin sensitivity analysis in systems with significant wind power generation penetration by da Costa, Jhonatan Nascimento, Passos Filho, João Alberto, Mota Henriques, Ricardo

“…•The wind speed can significantly impact the loading margin of the power systems.•Precise estimates of the loading margin are obtained for wind speed…”
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New methodologies for SVC modeling in the power flow problem based on sigmoid functions by Peters Barbosa, João Pedro, Passos Filho, João Alberto

“…This paper presents new methodologies for modeling static VAr compensators (SVCs) in the power flow problem. The proposed formulations utilize sigmoid…”
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Photovoltaic Power Intermittency Mitigating with Battery Storage Using Improved WEEC Generic Models by Schiochet, André Fernando, Duailibe Monteiro, Paulo Roberto, Borges, Thiago Trezza, Passos Filho, João Alberto, de Oliveira, Janaína Gonçalves

“…The growing integration of renewable energy sources, such as photovoltaic and wind systems, into energy grids has underscored the need for reliable control…”
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Optimization of wind power connection in power systems considering transmission switching technique and distribution factors by Altomar, Mariana Brinati, Passos Filho, João Alberto

“…The optimal wind power generation connection in power systems is a growing field of study recently. Accordingly to the literature, the Optimal Transmission…”
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Gradient based hybrid metaheuristics for robust tuning of power system stabilizers by Peres, Wesley, Silva Júnior, Ivo Chaves, Passos Filho, João Alberto

“…•Memetic Algorithms are proposed using Bat Algorithm, PSO, GSA and Gradient Method.•Coordinated, robust and optimal design of stabilizers using multiple…”
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Determining Voltage Control Areas in Large Scale Power Systems Based on Eigenanalysis of the QV Sensitivity Matrix by Henriques, Ricardo Mota, Passos Filho, Joao Alberto, Taranto, Glauco Nery

“…Bulk power systems failures caused by voltage instability phenomena have become more frequent during the last years. Voltage control schemes capable of keeping…”
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Parallel computing applied to the stochastic dynamic programming for long term operation planning of hydrothermal power systems by Dias, Bruno Henriques, Tomim, Marcelo Aroca, Marcato, André Luís Marques, Ramos, Tales Pulinho, Brandi, Rafael Bruno S., Junior, Ivo Chaves da Silva, Filho, João Alberto Passos

“…► We analyze to parallelization process of the Stochastic Dynamic Programming (SDP). ► This is applied to the long term hydrothermal system operation planning…”
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Impact of Distributed Generation Penetration on Distribution Network Technical Losses by Nascimento, Pedro Henrique M., Avila, Othon Ferreira, de Oliveira, Luiz Eduardo, Filho, Joao Alberto Passos, Saraiva, Joao Tome, da Silva, Ivo Chaves

“…This work describes an analysis of the impact of distributed generation, focusing on the generation from renewable sources, in the technical losses of…”
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New DC Power Flow Formulation Considering The Primary Frequency Regulation by Avila, Othon Ferreira, Passos Filho, Joao Alberto

“…The main objective of this paper is to present a new methodology for solving the linearized power flow problem. The proposed formulation consists of including…”
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A New Approach Based on PCA for Identifying Power Flow Control Infeasibilities by GuimarAes, Humberto Almeida, Filho, Joao Alberto Passos

“…This paper describes a new methodology to identify conflicts between power flow control devices that can cause New-ton's method convergence problems. The…”
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A new model for the hierarchical response of control devices in the power flow problem by La Gatta, Paula Oliveira, Netto, Nícolas Abreu Rocha Leite, Passos Filho, João Alberto

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Impact of ancillary services in the steady-state security region in distribution systems by Lima, Mateus Lopes, Pombo, Ranielli Vieira, Filho, Joao Alberto Passos, Avila, Othon Ferreira

“…This paper investigates the change in the Steady-State Security Region (SSR) of distribution systems when subjected to voltage regulation by distributed…”
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Identifying power flow control infeasibilities in large scale power system models by Filho, J., Martins, N., Falcao, D.M.

“…This paper describes a methodology to identify potential conflicts among power flow control devices that may slow down or impair convergence. The proposed…”
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A new approach for area interchange control modeling by dos Santos, M.J., Pereira, J.L.R., Filho, J.A.P., de Oliveira, E.J., da Silva, I.C.

“…This paper describes a new methodology to evaluate the area interchange control (AIC) in a power flow problem using the Newton-Raphson method. In this…”
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Fluxo de Potência Holomórfico Probabilístico aplicado às Redes de Distribuição: uma análise comparativa com métodos iterativos by Santos Lima, Glaucus Rivera, de Melo, Igor Delgado, Passos Filho, Joao Alberto, Mateus e Silva Rodrigues, Filipe

“…ResumoNeste trabalho, o método HELM (Holomorphic Embedding Load Flow Method) é aplicado de modo a se determinar o estado operativo de um sistema elétrico de…”
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