Diagnostic of Insulators of Conventional Grid Through LabVIEW Analysis of FFT Signal Generated from Ultrasound Detector

Stefenon, Stéfano Frizzo; Oliveira, Joaquim Rodrigo de; Coelho, Antônio Augusto Rodrigues; Meyer, Luiz Henrique

doi:10.1109/tla.2017.7910202

Cited by 35 publications

(22 citation statements)

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“…Sustainability is an act of equilibrium between social, environmental, and economic dimensions of human needs [34]. These balanced dimensions are constantly changing because of the growing human population and the fulfillment of their consumption needs [35][36][37]. Therefore, since the dimensions of sustainability are not independent of each other, the constant balance of sustainability makes it a dynamic concept and not a static state [38].…”

Section: Energy and The Dimensions Of Sustainabilitymentioning

confidence: 99%

Tools for Measuring Energy Sustainability: A Comparative Review

et al. 2020

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This paper is intended to perform a comparative and qualitative review among eight tools to measure energy sustainability. Therefore, it was necessary to create a theoretical and conceptual framework based on four criterias of selection and six categories of comparison. In this work, the conceptual bases that supported the research and the methodology created to carry out the comparative review will be presented. This analysis was based on the intrinsic concepts of energy sustainability of each of the reviewed tools with a critical qualitative analysis. Some conclusions shown through the conceptual framework developed that it was possible to apply an innovative methodology to qualitatively compare different tools to measure sustainability. The importance of this reflects the difficulty of conceptualizing the subjectivity of sustainable development, as shown throughout the paper, where it is often not possible to obtain a measurable result since the measured phenomenon is too complex to reduce it to a numerical value.

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Section: Energy and The Dimensions Of Sustainabilitymentioning

confidence: 99%

Tools for Measuring Energy Sustainability: A Comparative Review

et al. 2020

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“…As ondas eletromagnéticas são representadas matematicamente por senóides que se deslocam na mesma direção, frequência e velocidade (STEFENON et al, 2017). A velocidade de propagação é independente da fonte geradora que corresponde pela frequência e comprimento de onda.…”

Section: Propagação De Ondas Eletromagnéticasunclassified

Estudo De Viabilidade Financeira Para Instalação De Rádio Enlace Na Rede De Telefonia Móvelestudo De Viabilidade Financeira Para Instalação De Rádio Enlace Na Rede De Telefonia Móvel

Cruz¹,

Stefenon²,

Furtado³

et al. 2018

RGEINTEC

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ResumoEste artigo avalia a instalação de um sistema de rádio enlace na rede de telefonia móvel, visando uma melhoria nos equipamentos de telefonia celular objetivando uma qualidade do sistema e uma redução de custos para a operadora. A proposta é substituir a rede de transmissão de voz e dados que é alugada, através do sistema de par metálico com sistema de modem SHDSL, que além de fornecer uma banda de dados pequena tem um alto custo mensal para a operadora de telefonia. Realizou-se um estudo de viabilidade em oito sites (torres) da operadora, nas cidades de Caçador e Videira em Santa Catarina região meio oeste do estado. A viabilidade econômica comprova que com o investimento para a instalação de novos equipamentos de transmissão há uma redução de custos e melhoria no sistema de telefonia celular para a operadora.Palavras-chave: rádio enlace; telefonia celular; viabilidade econômica. AbstractThis paper evaluates the installation of a radio link system in the mobile phone network, aiming at improving the mobile phone equipment in both the quality of the system and reduce costs for the operator. The proposal is to replace the voice transmission and data network that is rented, through the metallic pair system with SHDSL modem system, which in addition to providing a small data Revista GEINTEC-ISSN: 2237-0722. Aracaju/SE. Vol.8, n.3, p.4447-4460, jul/ago/set -2018 4448 D.O.I.: 10.7198/geintec.v8i3.1143band has a high monthly cos. A feasibility study was conducted on eight sites (towers) of the operator, in the cities of Caçador and Videira in Santa Catarina midwestern region of the state. The economic viability proves that with the investment for the installation of new transmission equipment there is a reduction of costs and improvement in the cellular telephone system for the operator.

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“…Using an optimized algorithm, the classification problem is evaluated and presents promising results, when the particle swarm optimization and the Wavelet transform are combined with an ensemble learning algorithm [31]. Using the backpropagation algorithm, several ways of developing the method are compared in [32]; however, the classification problem is not developed.…”

Section: Introductionmentioning

confidence: 99%

A Study of Multilayer Perceptron Networks Applied to Classification of Ceramic Insulators Using Ultrasound

et al. 2021

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Interruptions in the supply of electricity cause numerous losses to consumers, whether residential or industrial and may result in fines being imposed on the regulatory agency’s concessionaire. In Brazil, the electrical transmission and distribution systems cover a large territorial area, and because they are usually outdoors, they are exposed to environmental variations. In this context, periodic inspections are carried out on the electrical networks, and ultrasound equipment is widely used, due to non-destructive analysis characteristics. Ultrasonic inspection allows the identification of defective insulators based on the signal interpreted by an operator. This task fundamentally depends on the operator’s experience in this interpretation. In this way, it is intended to test machine learning applications to interpret ultrasound signals obtained from electrical grid insulators, distribution, class 25 kV. Currently, research in the area uses several models of artificial intelligence for various types of evaluation. This paper studies Multilayer Perceptron networks’ application to the classification of the different conditions of ceramic insulators based on a restricted database of ultrasonic signals recorded in the laboratory.

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Diagnostic of Insulators of Conventional Grid Through LabVIEW Analysis of FFT Signal Generated from Ultrasound Detector

Cited by 35 publications

References 0 publications

Tools for Measuring Energy Sustainability: A Comparative Review

Tools for Measuring Energy Sustainability: A Comparative Review

Estudo De Viabilidade Financeira Para Instalação De Rádio Enlace Na Rede De Telefonia Móvelestudo De Viabilidade Financeira Para Instalação De Rádio Enlace Na Rede De Telefonia Móvel

A Study of Multilayer Perceptron Networks Applied to Classification of Ceramic Insulators Using Ultrasound

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