Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Raul Garcia Ovejero"'
Autor:
Sergio Henrique Lopes Cabral, Stefano Frizzo Stefenon, Raul Garcia Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
IEEE Access, Vol 11, Pp 87667-87675 (2023)
For basic studies of power transmission lines, in steady state, any line is usually modeled through a single-line pi-circuit, which intrinsically represents all the conductors of the three phases, as well as the grounding wires, and thus, allows anal
Externí odkaz:
https://doaj.org/article/6009c6f03482406b8a17a2863c362d6e
Autor:
Vinicius Almeida Dos Santos, Wemerson Delcio Parreira, Anita Maria Da Rocha Fernandes, Raul Garcia Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
IEEE Access, Vol 10, Pp 124523-124533 (2022)
Speaker recognition is challenging in real-world environments. Typically, studies approach noises only in an additive manner. However, real environments commonly present reverberating conditions that worsen speech processing. When not considering rev
Externí odkaz:
https://doaj.org/article/f66c53fc31dd4bd6b96463a4e460c1e2
Autor:
Stefano Frizzo Stefenon, Rafael Bruns, Andreza Sartori, Luiz Henrique Meyer, Raul Garcia Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
IEEE Access, Vol 10, Pp 33980-33991 (2022)
Outdoor insulators may experience stress due to severe environmental conditions, such as pollution and contamination. Through the identification of partial discharges by ultrasonic noise, it is possible to assess the possibility of a power grid failu
Externí odkaz:
https://doaj.org/article/0c866ff7d3684e4a82ef1505604a8d32
Autor:
Daniel H. de la Iglesia, Héctor Sánchez San Blas, Vivian F. López, María N. Moreno-García, M. Dolores Muñoz Vicente, Raul Garcia Ovejero, Gabriel Villarrubia, Juan F. de Paz Santana
Publikováno v:
Advances in Intelligent Systems and Computing ISBN: 9783031148583
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2733d7433c73187cbc4e06a115a422b7
https://doi.org/10.1007/978-3-031-14859-0_24
https://doi.org/10.1007/978-3-031-14859-0_24
Autor:
Stefano Frizzo Stefenon, Laio Oriel Seman, Anne Carolina Rodrigues Klaar, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 6, Pp 102722- (2024)
Ensuring the reliability of electrical distribution networks is a pressing concern, especially given the power outages due to surface contamination on insulating components. Surface contamination can elevate surface conductivity, thereby resulting in
Externí odkaz:
https://doaj.org/article/9e9a0bc627294e32b2793ce93e3ceded
Autor:
Stéfano Frizzo Stefenon, Laio Oriel Seman, Bruno Antonio Pavan, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
IET Generation, Transmission & Distribution, Vol 16, Iss 9, Pp 1865-1876 (2022)
Abstract Spacers in the compact power distribution network are essential components for the support, organization, and spacing of conductors. To improve the reliability of these components and have an optimized network design, it is necessary to eval
Externí odkaz:
https://doaj.org/article/fc1051716fa842b39671ef8f30b83c3f
Autor:
Nemesio Fava Sopelsa Neto, Stefano Frizzo Stefenon, Luiz Henrique Meyer, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Sensors, Vol 22, Iss 16, p 6121 (2022)
To improve the monitoring of the electrical power grid, it is necessary to evaluate the influence of contamination in relation to leakage current and its progression to a disruptive discharge. In this paper, insulators were tested in a saline chamber
Externí odkaz:
https://doaj.org/article/7729e1f451634b1ca0b7c3c514bfbf8b
Publikováno v:
Applied Sciences, Vol 11, Iss 21, p 9954 (2021)
As solar photovoltaics in buildings reaches maturity, grid integration and economic yield are topics of greater interest. The traditional design of photovoltaic installations has considered the optimal orientation of photovoltaic modules to be that w
Externí odkaz:
https://doaj.org/article/ee1e0ee83d2c487f94fc74e9758e1513
Autor:
Marcelo Picolotto Corso, Fabio Luis Perez, Stéfano Frizzo Stefenon, Kin-Choong Yow, Raúl García Ovejero, Valderi Reis Quietinho Leithardt
Publikováno v:
Computers, Vol 10, Iss 9, p 112 (2021)
Contamination on insulators may increase the surface conductivity of the insulator, and as a consequence, electrical discharges occur more frequently, which can lead to interruptions in a power supply. To maintain reliability in an electrical distrib
Externí odkaz:
https://doaj.org/article/dd43912df2fe41538f508e652fcbc577
Autor:
José Augusto Itajiba, Cézar Armando Cunha Varnier, Sergio Henrique Lopes Cabral, Stéfano Frizzo Stefenon, Valderi Reis Quietinho Leithardt, Raúl García Ovejero, Ademir Nied, Kin-Choong Yow
Publikováno v:
Energies, Vol 14, Iss 5, p 1318 (2021)
Although this is a fact that is not very explored in the literature, there are two possible forms to connect the stator winding of an induction motor in the delta. The choice for one of these forms defines the amplitude of the stator transient curren
Externí odkaz:
https://doaj.org/article/98b0eb1c06624a4682b702f1d0426e50