Search Results - "Rocha, Thiago Oliveira Alves"

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

Real-Time Power Measurement Using the Maximal Overlap Discrete Wavelet-Packet Transform by Keuton Alves, Denis, Costa, Flavio B., Lucio de Araujo Ribeiro, Ricardo, Martins de Sousa Neto, Cecilio, de Oliveira Alves Rocha, Thiago

“…This paper proposes the real-time estimation of the root-mean-square (rms) values, primary power quantities (active, total apparent, nonactive power, and power…”
Get full text

A Robust DC-Link Voltage Control Strategy to Enhance the Performance of Shunt Active Power Filters Without Harmonic Detection Schemes by De Araujo Ribeiro, Ricardo Lucio, De Oliveira Alves Rocha, Thiago, Maciel de Sousa, Raphaell, dos Santos Junior, Euzeli Cipriano, Nogueira Lima, Antonio Marcus

“…Shunt active power filters (SAPFs) implemented without harmonic detection schemes are susceptible to sudden load variations. This paper proposes a robust…”
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

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

Wavelet-Based Power System Stabilizer by Martins De Sousa Neto, Cecilio, Costa, Flavio B., De Araujo Ribeiro, Ricardo Lucio, Lopes Barreto, Rodrigo, De Oliveira Alves Rocha, Thiago

“…This paper proposes a wavelet-based power system stabilizer (WPSS) by using both the scaling coefficient energy and the wavelet coefficient energy with border…”
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

Real-time wavelet-based adaptive algorithm for low inertia AC microgrids power measurements by Alves, Denis Keuton, Ribeiro, Ricardo Lúcio Araújo, Silveira, Luiz Felipe de Queiroz, Rocha, Thiago de Oliveira Alves

“…This paper proposes a real-time wavelet-based power estimator using a real-time modified stationary discrete wavelet packet transform (RT-MSDWPT). The proposed…”
Get full text

Power Estimation Methods Applied to AC Microgids Operating Under Non-Standard Conditions by Raimundo Dantas Neto, Jose, Lucio de Araujo Ribeiro, Ricardo, de Oliveira Alves Rocha, Thiago, Keuton Alves, Denis

“…This paper proposes an assessment of three power estimation methods under adverse microgrid scenarios, such as the presence of harmonics, load and source…”
Get full text

Wavelet-based estimation method for online condition monitoring of dc-link capacitors of distributed energy resources by Ribeiro, Ricardo Lúcio Araújo, Sangwongwanich, Ariya, Alves, Denis Keuton, Blaabjerg, Frede, Rocha, Thiago de Oliveira Alves

“…This paper proposes a novel capacitor condition monitoring for dc-link of power converters employed in distributed energy resources systems. It follows the…”
Get full text

Contributions on Sliding-Mode Control Approach Applied for Single-Phase Grid-Connected Voltage Source Inverters by de Sousa, Alan Rodrigues, Lucio de Araujo Ribeiro, Ricardo, de Oliveira Alves Rocha, Thiago

“…This paper presents a sliding-mode control (SMC) strategy applied for single-phase grid-connected voltage source inverters (VSIs). The proposed SMC employs…”
Get full text

A Control Strategy With Seamless Mode Transition for a Low-voltage Distributed Generation System Without an Energy Storage System by Ribeiro Damasceno, Yuri Iohanssen, de Araujo Ribeiro, Ricardo Lucio, de Oliveira Alves Rocha, Thiago, de Cavalcante Paiva, Samara

“…The world energy demand is expected to rise in the coming decades. Renewable Energy Source Distributed Generation (RES-DG) is being used to meet this increased…”
Get full text