Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Alex-Sander Amavel Luiz"'
Autor:
Diuary Gonçalves, João Victor Matos Farias, Heverton Augusto Pereira, Alex-Sander Amável Luiz, Marcelo Martins Stopa, Allan Fagner Cupertino
Publikováno v:
Energies, Vol 15, Iss 15, p 5644 (2022)
In recent years, medium-voltage variable-speed drives have become popular in the industry. However, in some applications, the use of long cables can lead to overvoltages at the motor terminals, affecting the motor lifespan. Under such conditions, the
Externí odkaz:
https://doaj.org/article/ed978c95089d4e5daf32d4819d7b83e0
Autor:
Simone Aparecida Rocha, Rodrigo Tomas Nogueira Cardoso, Eduardo Gonzaga Da Silveira, Alex-Sander Amavel Luiz
Publikováno v:
Energies, Vol 16, Iss 15, p 5595 (2023)
This paper introduces a novel approach to fault localization in transmission lines with series compensation using nonlinear optimization. The objective function minimization provides information on the fault distance and the current at which the prot
Externí odkaz:
https://doaj.org/article/65c0a13fea4245718c748a8ebdaa31db
Autor:
Alex-sander Amavel Luiz
Publikováno v:
Biblioteca Digital de Teses e Dissertações da UFMGUniversidade Federal de Minas GeraisUFMG.
This work proposes the use of a passive filter and the selective harmonic elimination in order to synthesize sinusoidal voltages and current with high power and medium voltage static converters. The work presents an investigation of the most importan
Externí odkaz:
http://hdl.handle.net/1843/BUOS-8CVEGE
Autor:
Braz de Jesus Cardoso Filho, Luiza S. Miranda, Cláudio de Andrade Lima, Marcelo Martins Stopa, Alex-Sander Amavel Luiz, Carlos Barreira Martinez
Publikováno v:
IEEE Transactions on Industry Applications. 56:2107-2116
This article evaluates the ability of the load torque signature analysis (LTSA), which is a mechanical fault detection method, to detect gaseous nuclei in centrifugal pumps driven by induction motors supplied by frequency inverters. The LTSA method i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c626955627a6c1a3e9759ce3a51110b
https://doi.org/10.1109/tia.2020.2966168
https://doi.org/10.1109/tia.2020.2966168
Autor:
Matheus R. Resende, Giovani Guimarães Rodrigues, Braz de Jesus Cardoso Filho, Alex-Sander Amavel Luiz, Julio C. G. Justino, Marcelo Martins Stopa
Publikováno v:
IAS
This article deals with air-gap torque estimation in inverter-fed induction motors. Torque estimation is an important stage in the methods used to evaluate energy consumption and efficiency. Those methods are essential to monitoring electric motors a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c298135f85dff9d2d50fd71e81e11d1e
https://doi.org/10.1109/tia.2019.2963832
https://doi.org/10.1109/tia.2019.2963832
Autor:
Diogo Borges da Silveira, Joao Victor Matos Farias, Heverton Augusto Pereira, Alex-Sander Amavel Luiz, Marcelo Martins Stopa, Allan Fragner Cupertino
Publikováno v:
2021 Brazilian Power Electronics Conference (COBEP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90244e1a36cf202e7f20de8bf3ddfb5e
https://doi.org/10.1109/cobep53665.2021.9684147
https://doi.org/10.1109/cobep53665.2021.9684147
Autor:
Diuary Goncalves, Joao Victor Matos Farias, Heverton Augusto Pereira, Alex-Sander Amavel Luiz, Marcelo Martins Stopa, Allan Fragner Cupertino
Publikováno v:
2021 Brazilian Power Electronics Conference (COBEP).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::214a23548877c5b8a6fd3f856ca17a41
https://doi.org/10.1109/cobep53665.2021.9684092
https://doi.org/10.1109/cobep53665.2021.9684092
Autor:
Marcelo Martins Stopa, Gabriel Vilkn Ramos, Marcos Paulo Brito Gomes, Alex-Sander Amavel Luiz
Publikováno v:
IAS
This work evaluates the digital hysteresis current control of a high power and low cost three-phase and three-level active AC-DC rectifier in metal industries. The rectifier consists of an alternative converter composed of two active semiconductor sw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f5cd58c936328f70f253e2720ee11a75
https://doi.org/10.1109/ias44978.2020.9334799
https://doi.org/10.1109/ias44978.2020.9334799
Autor:
George A. M. Lacerda, Lane Maria Rabelo Baccarini, Marcelo Martins Stopa, Marcos A. Saldanha, Alex-Sander Amavel Luiz
Publikováno v:
IAS
Monitoring energy consumption and condition of electric motors is important for economical purposes and safe operation of drives and processes in industry. Those activities are especially valid in processes requiring high availability such as those f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b054a85e0ad16353a507342a628d7e9
https://doi.org/10.1109/tia.2018.2835411
https://doi.org/10.1109/tia.2018.2835411
Autor:
Marcelo Martins Stopa, Alex-Sander Amavel Luiz, Gabriel Vilkn Ramos, Marcos Paulo Brito Gomes, Marina Hassen de Souza
Publikováno v:
2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC).
This paper presents a study related to an electric drive composed by an induction machine fed by a NPC (neutral point clamped) frequency inverter, extending also to ANPC (active neutral point clamped) topologies, and IGBTs commanded by a SHE-PWM (sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51330f18b54d890018e6a35297636771
https://doi.org/10.1109/cobep/spec44138.2019.9065386
https://doi.org/10.1109/cobep/spec44138.2019.9065386