Search Results - "Flavio Bezerra Costa"

Fault-Induced Transient Detection Based on Real-Time Analysis of the Wavelet Coefficient Energy by Bezerra Costa, Flavio

“…In the few years, wavelet-based methodologies have been proposed as a good alternative for real-time fault detection. However, these methodologies usually fail…”
Get full text

A Clarke-Wavelet-Based Time-Domain Power Transformer Differential Protection by Medeiros, Rodrigo Prado, Bezerra Costa, Flavio, Melo Silva, Kleber, Muro, Jose de Jesus Chavez, Junior, Jose Raimundo Lima, Popov, Marjan

“…Phasor-based differential protection is widely used as the main protection function of the power transformer due to its reliability and ability to discriminate…”
Get full text

Frequency Droop-Based Synchronverter Without Battery for Primary Support of Microgrids by da Silva Santos, Maxwel, Sales Barros, Luciano, Bezerra Costa, Flavio, Mara Vital Barros, Camila, Penha Silva Junior, Guilherme, Strunz, Kai

“…Distributed generation (DG) based on synchronverter with no battery is unable to provide frequency support without compromising DC-bus voltage level. However,…”
Get full text

A Wavelet-Based Transformer Differential Protection: Internal Fault Detection During Inrush Conditions by Medeiros, Rodrigo Prado, Costa, Flavio Bezerra

“…This paper proposes the boundary discrete wavelet transform-based differential protection for detecting internal faults during inrush conditions in order to…”
Get full text

Real-Time Wavelet-Based Grid Impedance Estimation Method by Alves, Denis Keuton, Ribeiro, Ricardo L. A., Costa, Flavio Bezerra, Rocha, Thiago Oliveira Alves

“…This letter presents a novel method to estimate the grid impedance based on stationary discrete wavelet packet transform (SDWPT). The proposed method uses a…”
Get full text

Wavelet-Based Monitor for Grid Impedance Estimation of Three-Phase Networks by Alves, Denis Keuton, Ribeiro, Ricardo Lucio de Araujo, Costa, Flavio Bezerra, Rocha, Thiago de Oliveira Alves, Guerrero, Josep M.

“…This article proposes a wavelet-based monitor (WBM) for grid impedance estimation, which combines a wavelet-based transient detection scheme (WB-TDS) and a…”
Get full text

Traveling Wave-Based Transmission Line Earth Fault Distance Protection by Franca, Rafael Lucas da Silva, Junior, Francisco Caninde da Silva, Honorato, Tiago R., Ribeiro, Joao Paulo G., Costa, Flavio Bezerra, Lopes, Felipe V., Strunz, Kai Strunz

“…This paper proposes a one-terminal traveling wave (TW)-based transmission line earth fault distance protection function. It only needs the detection of the…”
Get full text

Closed-Form Solution for Traveling Wave-Based Fault Location on Non-Homogeneous Lines by Leite, Eduardo Jorge Silva, Lopes, Felipe V., Costa, Flavio Bezerra, Neves, Washington Luiz Araujo

“…In this paper, a closed-form solution for traveling wave (TW)-based fault location on non-homogeneous lines (NHLs) with multiple sections is proposed. It is…”
Get full text

Wavelet-Based Frequency Tracking Monitor Applied for Low-Inertia AC Microgrids by Paiva, Samara de Cavalcante, Ribeiro, Ricardo Lucio de Araujo, Alves, Denis Keuton, Guerrero, Josep M., Rocha, Thiago de Oliveira Alves, Costa, Flavio Bezerra

“…This article proposes a wavelet-based frequency tracking monitor (WB-FTM) applied for low-voltage ac microgrids. It is based on a modified continuous wavelet…”
Get full text

Voltage Grid Supporting by Using Variable Structure Adaptive Virtual Impedance for LCL-Voltage Source Converter DG Converters by Fonseca, Thales Queiroz, Ribeiro, Ricardo L. A., Rocha, Thiago de Oliveira Alves, Costa, Flavio Bezerra, Guerrero, Josep M.

“…This article proposes a voltage grid supporting applied for DGs based on LCL-VSC to control the delivered power flow and improve the point of common coupling…”
Get full text

Modular Multilevel Converter for Low-Voltage Ride-Through Support in AC Networks by de Souza, Victor Ramon França Bezerra, Barros, Luciano Sales, Costa, Flavio Bezerra

“…New grid-connected systems have imposed additional requirements regarding reliability, power quality, high levels of power processing capacity, and fault…”
Get full text

A Wavelet-Based Transformer Differential Protection With Differential Current Transformer Saturation and Cross-Country Fault Detection by Medeiros, Rodrigo Prado, Costa, Flavio Bezerra

“…The current transformer (CT) saturation phenomenon has been one of the main problems for the power transformer differential protection, leading to incorrect…”
Get full text

A wavelet-based hybrid islanding detection system applied for distributed generators interconnected to AC microgrids by Paiva, Sâmara Cavalcante, Ribeiro, Ricardo Lúcio de Araujo, Alves, Denis Keuton, Costa, Flávio Bezerra, Rocha, Thiago de Oliveira Alves

“…•This paper presented a wavelet-based hybrid islanding detection system (WB-HIDS).•The proposed method uses the continuous wavelet transform for real-time…”
Get full text

Response surface applied to mixtures of castor bean hull and presscake for organic fertilization of castor bean plants by Walciria Alves Silva, Napoleão Esberard de Macêdo Beltrão, José Wellingthon dos Santos, Flavio Bezerra Costa, Genelicio Souza Carvalho Junior

“…Castor bean presscake and hull are the two sub-products resulting from the extraction of castor bean oil. Their use as organic fertilizers has aroused interest…”
Get full text

Machine learning for power outage prediction during hurricanes: An extensive review by Fatima, Kehkashan, Shareef, Hussain, Costa, Flavio Bezerra, Bajwa, Abdullah Akram, Wong, Ling Ai

“…The surge of machine learning (ML) applications and increasing usage of data driven approach for resilience enhancement provide great opportunities for…”
Get full text

High Impedance Faults: From Field Tests to Modeling by dos Santos, Wellinsílvio Costa, de Souza, Benemar Alencar, Brito, Núbia Silva Dantas, Costa, Flávio Bezerra, Paes, Marcelo Renato Cerqueira

“…High impedance faults (HIFs) are serious and troubling disturbances on power distribution systems because the main power system protection devices are usually…”
Get full text

Improved traditional directional protection by using the stationary wavelet transform by Leal, Mônica Maria, Costa, Flavio Bezerra, Loureiro Sousa Campos, João Tiago

“…•The conventional and innovative protection demand is attends by the wavelet-based directional protection.•The proposed method present a better performance…”
Get full text

Power transformer disturbance classification based on the wavelet transform and artificial neural networks by Fonseca Fernandes, Jessika, Bezerra Costa, Flavio, Prado de Medeiros, Rodrigo

“…Currently, the differential function has been widely used in transformer protection relay. However, the main issue of this technique is assigned to the relay…”
Get full text

Wind turbine torque-speed feature emulator using a DC motor by Taveiros, Filipe Emanuel Vieira, Barros, Luciano Sales, Costa, Flavio Bezerra

“…This paper presents the development of a wind turbine emulator to assist tests to be undertaken on wind energy conversion systems, which may include generator…”
Get full text

A Meshed MMC-Based MTDC System with Improved Voltage Margin Control for Robustness Towards Disturbances by da Silva Santos, Maxwel, Barros, Luciano Sales, da Silva França, Rafael Lucas, Costa, Flavio Bezerra, Strunz, Kai

“…The voltage margin control strategy is often used for multi-terminal high voltage direct current (MTDC) transmission systems. It ensures a tight regulation of…”
Get full text