Search Results - "Schroeder, Marco Aurélio O."

Analysis of the lightning impulse and low-frequency performance of wind farm grounding systems by Alipio, Rafael, Correia de Barros, Maria Teresa, Schroeder, Marco Aurélio O., Yamamoto, Kazuo

“…•Interconnecting grounding systems of a wind farm strongly reduces the resistance.•Interconnecting grounding systems does not improve impulse response in all…”
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Evaluation of the impact of different frequency dependent soil models on lightning overvoltages by Schroeder, Marco Aurélio O., de Barros, Maria Teresa Correia, Lima, Antonio C.S., Afonso, Márcio M., Moura, Rodolfo A.R.

“…•Wideband behaviour of grounding systems in EMT-type programs on evaluation of lightning transients.•Grounding frequency behaviour by electromagnetic model and…”
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Assessment of different formulations for the ground return parameters in modeling overhead lines by Lima, Antonio C.S., Moura, Rodolfo A.R., Schroeder, Marco Aurélio O., Correia de Barros, Maria Teresa

“…•Contribution to the modeling of overhead lines when ground displacement currents are considered.•Presentation of distinct formulation of ground return…”
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Optimization of Overhead Transmission Lines Power Transfer Capability with Minimizing Electric and Magnetic Fields by Moura, Rodolfo A. R., Assis, Fernando A., Schroeder, Marco Aurélio O., Resende, Leonidas C., Afonso, Márcio M.

“…The electric and magnetic fields generated by transmission lines, at ground level, must be carefully analyzed to ensure low levels of induced voltage in…”
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Closed-Form Approximation for Horizontal Grounding Electrodes Transient Analysis by Moura, Rodolfo A. R., Schroeder, Marco Aurélio O., Lima, Antonio C. S., Vieira, Pedro H. N.

“…The method of moments (MoM) is widely used in several areas of knowledge to solve integral equations. In the specific case of solving electrical grounding…”
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Evaluation of the transmission tower and frequency-dependent soil parameters influence on the grounding potential rise waveforms by Schroeder, Marco Aurélio O., Moura, Rodolfo A.R., Assis, Fernando A., Paulino, José O.S.

“…In this paper, the influence of the transmission tower and the frequency-dependent soil parameters on the grounding potential rise (GPR) waveform is evaluated…”
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Grounding grid effective area and impulsive impedance considering statistical–probabilistic characteristics of lightning currents by Moura, Rodolfo A.R., Silva, Gabriel C.P., Oliveira, Elisa M.A., Almeida, João A.C., Assis, Fernando A., Schroeder, Marco Aurélio O.

“…The grounding grid transient behavior is an important substation design criterion. This behavior is determined through interaction with impulsive currents…”
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Generation maintenance scheduling with renewable sources based on production and reliability costs by Assis, Fernando A., Leite da Silva, Armando M., Resende, Leonidas C., Moura, Rodolfo A.R., Schroeder, Marco Aurélio O.

“…•The GMS problem is assessed from the ISO point of view based on GENCOs schedules.•The generation maintenance scheduling problem is assessed from both points…”
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Reliability evaluation of composite generation and transmission systems via binary logistic regression and parallel processing by Campos, Fabrício S.V., Assis, Fernando A., Leite da Silva, Armando M., Coelho, Alex J.C., Moura, Rodolfo A.R., Schroeder, Marco Aurélio O.

“…In power system planning studies that involve the search for optimal investments with low risks for the power grid, probabilistic reliability assessments…”
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The Evaluation of Transmission Line Modeling on Lightning Performance Considering Surger Arresters: Impact in the Energy and Backflashover Rates by Colqui, Jaimis S. L., Moura, Rodolfo A. R., Schroeder, Marco Aurélio O., Filho, José Pissolato

“…This paper investigates the impact of transmission line parameter calculation formulations on surge arrester performance in response to lightning strikes. This…”
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Voltage Distribution Along Earth Grounding Grids Subjected to Lightning Currents by Alipio, Rafael, Aurelio O. Schroeder, Marco, Afonso, Marcio M.

“…This paper applies a rigorous electromagnetic model to determine the transient distribution of potentials along a substation earth grounding grid subjected to…”
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Symmetry exploitation to reduce impedance evaluations in grounding grids by Vieira, Pedro H.N., Moura, Rodolfo A.R., Schroeder, Marco Aurélio O., Lima, Antonio C.S.

“…•Modeling of several grounding systems including single conductors and symmetrical grounding grids.•Identification of symmetries to improve the evaluation of…”
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Lightning-Induced Overvoltage Peaks Considering Soil Parameters Frequency-Dependence and Multi-Layer Soils by Colqui, Jaimis S. L., Moura, Rodolfo A. R., Schroeder, Marco Aurelio O., Filho, Jose Pissolato

“…Lightning-induced overvoltages are one of the main causes of distribution lines shutdown. Additionally, it is known that the soil resistivity highly impacts…”
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Statistical analysis of lightning current parameters: Measurements at Morro do Cachimbo Station by Visacro, Silvério, Soares Jr, Amilton, Schroeder, Marco Aurélio O., Cherchiglia, Luiz C. L., de Sousa, Vander José

“…Most of the available data concerning lightning current parameters were obtained by means of measurements made in temperate regions in the Northern Hemisphere…”
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Periodic Boundary Conditions in the Natural Element Method by Goncalves, Barbara M. F., Afonso, Marcio M., Coppoli, Eduardo H. R., Schroeder, Marco Aurelio O., Alipio, Rafael S., Ramdane, Brahim, Marechal, Yves

“…The purpose of this paper is to introduce periodic and antiperiodic boundary conditions in the natural element method (NEM). It is shown that as the NEM shape…”
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Revision, extension, and validation of Jordan's formula to calculate the surge impedance of vertical conductors by De Conti, A., Visacro, S., Soares, A., Schroeder, M.A.O.

“…Jordan's formula to calculate the surge impedance of vertical conductors is revised and extended to take into account systems with multiple conductors…”
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Transient voltages in transmission lines caused by direct lightning strikes by Soares, A., Schroeder, M.A.O., Visacro, S.

“…This work presents some results concerning the computational simulation of electromagnetic transients in transmission lines caused by direct strikes of…”
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Assessment of Frequency-Dependent Parameters of Stratified Soils for Lightning Response of Earth Electrodes by Batista, Raphael, Alipio, Rafael, Moura, Rodolfo A. R., Schroeder, Marco Aurelio O.

“…Typically, the frequency dependence of soil parameters is predicted by models or formulas that assume a uniform soil, although it usually presents a stratified…”
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Evaluation of Lightning Overvoltages for Overhead Transmission Lines Using Unscented Transform by Coelho, Alex J. C., Moura, Rodolfo A. R., Assis, Fernando A., Schroeder, Marco Aurelio O., Yuan, Xinyi, Hooshyar, Ali

“…The Monte Carlo method (MCM) is the most widely used statistical approach to evaluate the lightning performance (LP) of overhead transmission lines (OTLs)…”
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Investigation of Overvoltages in HV Underground Sections Caused by Direct Strokes Considering the Frequency-Dependent Characteristics of Grounding by Gomes, Thiago Veloso, Schroeder, Marco Aurelio O., Alipio, Rafael, de Lima, Antonio Carlos Siqueira, Piantini, Alexandre

“…Nowadays, the analysis of the lightning performance of high-voltage (HV) underground sections has become increasingly important, thanks to their increasing…”
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