Search Results - "Justo de Araujo, Anderson Ricardo"

Grounding Impulse Impedance Estimation for Vertical Rods Buried in Porous Soil by de Azevedo, Walter Luiz Manzi, de Araujo, Anderson Ricardo Justo, Filho, Jose Pissolato

“…This paper proposes a methodology to compute the impulse impedance of a vertical rod buried in a porous soil modeled by improved Archie's formula. The harmonic…”
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Transient Analysis on Multiphase Transmission Line Above Lossy Ground Combining Vector Fitting Technique in ATP Tool by Colqui, Jaimis Sajid Leon, Araujo, Anderson Ricardo Justo De, Pascoalato, Taina Fernanda Garbelim, Kurokawa, Sergio, Filho, Jose Pissolato

“…Several approaches to calculate the ground-return impedance and admittance matrices are proposed in the literature. Carson's approach assumes a lossy ground…”
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Transient Analysis on Wind Farms with Interconnected Grounding Systems Located on Frequency-Dependent Soils by Da Silva, Wagner Costa, De Azevedo, Walter Luiz Manzi, D'Annibale, Jose Luciano Aslan, De Araujo, Anderson Ricardo Justo, Filho, Jose Pissolato

“…This paper investigates the transient voltages generated in a wind farm located on frequency-dependent (FD) soil for lightning striking at one of the towers…”
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Transient Analysis of Multiphase Transmission Lines Located above Frequency-Dependent Soils by Garbelim Pascoalato, Tainá Fernanda, Justo de Araújo, Anderson Ricardo, Caballero, Pablo Torrez, Leon Colqui, Jaimis Sajid, Kurokawa, Sérgio

“…This paper evaluates the influence of frequency-dependent soil conductivity and permittivity in the transient responses of single- and double-circuit…”
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Backflashover Analysis of Transmission Lines Considering Variation of Soil Electrical Parameters with Frequency and Water Content by De Azevedo, Walter Luiz Manzi, Colqui, Jaimis Sajid Leon, De Araujo, Anderson Ricardo Justo, Filho, Jose Pissolato, Kordi, Behzad

“…This paper investigates the lightning performance of three soil models considering their electrical parameters dependent on the frequency and water content…”
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A Comparison of Frequency-Dependent Soil Models: Electromagnetic Transient Analysis of Overhead Transmission Lines Using Modal Decomposition by Garbelim Pascoalato, Tainá Fernanda, Justo de Araújo, Anderson Ricardo, Leon Colqui, Jaimis Sajid, Kurokawa, Sérgio, Pissolato Filho, José

“…This article investigates the influence of four causal frequency-dependent (FD) soil models and their impact on the responses of a multiphase overhead…”
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Representation of Transmission Lines: Comparison of Models and Parameters Distributed Discrete Parameters by Justo de Araujo, Anderson Ricardo, Cleber da Silva, Rodrigo, Kurokawa, S.

“…A transmission line is characterized by the fact that its parameters are distributed along its length. This fact makes the voltages and currents along the line…”
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Comparison of soil modeling concerning physical factors: Application to transient analysis in wind turbines by de Azevedo, Walter Luiz Manzi, da Silva, Wagner Costa, de Araújo, Anderson Ricardo Justo, Filho, José Pissolato

“…This work analyzes the impact of the physical factors (frequency effect, water content, and porosity level) on the voltages developed along the wind turbine…”
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Full-wave electromagnetic analysis of lightning strikes to wind farm connected to medium-voltage distribution lines by da Silva, Wagner Costa, de Azevedo, Walter Luiz Manzi, de Araújo, Anderson Ricardo Justo, Filho, José Pissolato

“…This paper studies the voltages developed on a wind turbine (WT) and a medium-voltage distribution line (MVDL) connected to a wind farm subjected to lightning…”
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The effect of sandy soil porosity on lightning overvoltages of overhead 138 kV transmission line by de Azevedo, Walter Luiz Manzi, de Araújo, Anderson Ricardo Justo, Filho, José Pissolato

“…Proper soil modeling considering its physical properties is essential to design grounding systems and assess its grounding impedance for transient analysis…”
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Analysis of the voltage profile in transmission lines operating with injected third harmonic voltages by Santos Ferrari, Júlio Cesar, Justo de Araújo, Anderson Ricardo, Kurokawa, Sérgio

“…•Uprating technique by injection of a third harmonic voltage is a new to method increase the power capability.•Substantial gain are obtained in the power…”
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Lightning Current on the Frequency-Dependent Lumped Parameter Model Representing Short Transmission Lines by Sajid Leon Colqui, Jaimis, Carlos Timana, Luis, Kurokawa, Sergio, Ricardo Justo De Araujo, Anderson, Pissolato Filho, Jose

“…The purpose of this paper is to investigate the performance of the Frequency-Dependent Lumped Parameter Model (FD-LPM) to adequately represent two distinct…”
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Analysis of soil physical factors on transient responses of overhead transmission lines subjected to lightning strikes by Garbelim Pascoalato, Tainá Fernanda, Justo de Araújo, Anderson Ricardo, Kurokawa, Sérgio, Pissolato Filho, José

“…•Soil parameters variable with water content, frequency effect and porosity are investigated.•The ground-return parameters are calculated with Carson’s and…”
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On the Transient Behaviour of Vertical Grounding Electrodes Buried in Soils with Frequency-Dependent Electrical Parameters by Manzi de Azevedo, Walter Luiz, Justo de Araujo, Anderson Ricardo, Filho, Jose Pissolato

“…This paper investigates the transient responses generated on a vertical rod buried in soil with electrical parameters that vary with frequency effect and on a…”
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Computing Grounding Impedance of Rods Buried in Frequency-Dependent Stratified Soils by Ricardo Justo de Araujo, Anderson, Luis Manzi de Azevedo, Walter, Pissolato Filho, Jose

“…Grounding conductors play a fundamental role when transmission towers are subjected to lightning strikes in power systems. In this context, several studies…”
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Transient analysis of power transmission towers above lossy ground with frequency dependent electrical parameters considering the water content of soil by de Azevedo, Walter Luiz Manzi, de Araújo, Anderson Ricardo Justo, Colqui, Jaimis Sajid Leon, Filho, José Pissolato, Kordi, Behzad

“…•The effect of water content on soil electrical parameters is investigated.•Three soil models proposed in the literature are studied.•Ground Potential Rise is…”
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Transient Analysis of Grounding Electrodes in Multilayer Soils Using Method of Moments by de Araujo, Anderson Ricardo Justo, Colqui, Jaimis Sajid Leon, Azevedo, Walter Luiz Manzi de, Kurokawa, Sergio, Filho, Jose Pissolato, Kordi, Behzad

“…Grounding electrodes are expected to provide a low-impedance path for faults and lightning transient currents and protect the safety of electrical equipment…”
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Overvoltage analysis of transmission towers considering the influence of tower-footing impedance by de Araujo, Anderson Ricardo Justo, Mendes de Seixas, Claudiner, Kurokawa, Sergio, Kordi, Behzad

“…Lightning is one of the main causes of outages due to backflashover mechanism in power systems. In this context, the tower-footing impedance presents a key…”
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Influence of Frequency-Dependent Soil Models with Variable Water Content on Transient Responses of Overhead Transmission Lines by Pascoalato, Taina Fernanda Garbelim, De Araujo, Anderson Ricardo Justo, Kurokawa, Sergio, Filho, Jose Pissolato

“…This paper provides a short review and a comparison of three soil models, Scott (S), Longmire-Smith (LS) and Messier (M), where the effect of variation of…”
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Filtered Frequency Spectrum Method to Compute the Ground Potential Rise Due to Lightning Strikes by D'Annibale, Jose Luciano Aslan, de Azevedo, Walter Luiz Manzi, Da Silva, Wagner Costa, de Araujo, Anderson Ricardo Justo, Filho, Jose Pissolato

“…The concerns regarding the Ground Potential Rise (GPR), which is generated by lightning strikes and can result in hazardous voltages in the vicinity of ground…”
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