A Histogram of Oriented Gradients for Broken Bars Diagnosis in Squirrel Cage Induction Motors

Silva, Luiz Carlos da; Dias, Cleber Gustavo; Alves, Wonder Alexandre Luz

doi:10.1007/978-3-030-01418-6_4

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…Os Histogramas de Gradientes Orientados (HGO) foram originalmente criados com a finalidade de extrair características de um objeto presente em uma imagem, mais particularmente para detectar humanos em uma imagem, como descrito nos trabalhos publicados por Dalal and Triggs (2005) e Tan et al (2014). Mais recentemente, os HGO foram aplicados na detecção do rompimento de barras rotóricas em um motor de indução trifásico (Silva et al (2018)). De forma mais detalhada, a determinação de um HGO implica no cálculo das derivadas de um sinal discretizado, a fim de se obter o módulo de uma determinada amostra e oângulo formado entre as suas amostras vizinhas.…”

Section: Fundamentos Do Hgounclassified

Estimativa da Rotação em Motores de Indução Usando Histograma de Gradientes Orientados

Dias

Rodrigues

Silva

et al. 2019

Anais Do 14º Simpósio Brasileiro De Automação Inteligente

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This paper presents the use of histogram of oriented gradients technique, usually applied in the image processing field, to estimate the slip in squirrel cage induction motors. Such value is achieved by monitoring only one machine phase current with sample time in 250ms, wich allows future real time applications. The features extracted with the histograms were used as inputs for a neural network to estimate the final rotation of the machine. The results obtained from some experimental tests are presented to validate the present approach. Resumo: O presente artigo aborda o uso da técnica de histograma de gradientes orientados, normalmente aplicada naárea de processamento de imagens, na estimativa da rotação em motores de indução trifásicos com rotor gaiola de esquilo. Tal grandezaé alcançada a partir do monitoramento de apenas uma das correntes de fase da máquina, empregando janelas amostrais de apenas 250 ms, o que corrobora para futuras aplicações em tempo real. As características extraídas com o apoio dos histogramas foram aplicadas em uma rede neural para a estimativa final da rotação de eixo da máquina. Os resultados obtidos a partir de alguns ensaios experimentais são apresentados no sentido de validar a abordagem proposta.

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Section: Fundamentos Do Hgounclassified

Estimativa da Rotação em Motores de Indução Usando Histograma de Gradientes Orientados

Dias

Rodrigues

Silva

et al. 2019

Anais Do 14º Simpósio Brasileiro De Automação Inteligente

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A Histogram of Oriented Gradients Approach for Detecting Broken Bars in Squirrel-Cage Induction Motors

Dias

Silva

Alves

2020

IEEE Trans. Instrum. Meas.

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Inverter-Fed Motor Drive System: A Systematic Analysis of Condition Monitoring and Practical Diagnostic Techniques

et al. 2023

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Due to their efficiency and control capabilities, induction motors fed with inverters have become prevalent in various industrial applications. However, ensuring the reliable operation of the motor and diagnosing faults on time are crucial for preventing unexpected failures and minimizing downtime. This paper systematically analyzes condition monitoring and practical diagnostic techniques for inverter-fed motor drive systems. This study encompasses a thorough evaluation of different methods used for condition monitoring and diagnostics of induction motors, with the most crucial faults in their stator, rotor, bearings, eccentricity, shaft currents, and partial discharges. It also includes an assessment of their applicability. The presented analysis includes a focus on the challenges associated with inverter-fed systems, such as high-frequency harmonics, common-mode voltages causing the bearing currents, and high voltage gradients (dv/dt) due to fast switching frequency, which can impact the motor operation, as well as its faults analysis. Furthermore, this research explores the usefulness and efficiency of various available diagnostic methods, such as motor current signature analysis and other useful analyses using advanced signal processing techniques. This study aims to present findings that provide valuable insights for developing comprehensive condition monitoring strategies, and practical diagnostic techniques that enable proactive maintenance, enhanced system performance, and improved operational reliability of inverter-fed motor drive systems.

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A Histogram of Oriented Gradients for Broken Bars Diagnosis in Squirrel Cage Induction Motors

Cited by 3 publications

References 19 publications

Estimativa da Rotação em Motores de Indução Usando Histograma de Gradientes Orientados

Estimativa da Rotação em Motores de Indução Usando Histograma de Gradientes Orientados

A Histogram of Oriented Gradients Approach for Detecting Broken Bars in Squirrel-Cage Induction Motors

Inverter-Fed Motor Drive System: A Systematic Analysis of Condition Monitoring and Practical Diagnostic Techniques

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