Search Results - "Carvalho, Andre T."

Emerging Trends in Power Transformer Maintenance and Diagnostics: A Scoping Review of Asset Management Methodologies, Condition Assessment Techniques, and Oil Analysis by Rema, Gabriela S., Bonatto, Benedito D., de Lima, Antonio C. S., de Carvalho, Andre T.

“…The present study undertakes a scoping review of research on the methodologies and techniques used for the maintenance and condition assessment of power…”
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A new wavelet selection method for partial discharge denoising by Cunha, Caio F.F.C., Carvalho, André T., Petraglia, Mariane R., Lima, Antonio C.S.

“…•More effective methodologies to improve partial discharge signal denoising are provided.•A novel approach for determining the wavelet decomposition levels is…”
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Identification of partial discharges immersed in noise in large hydro-generators based on improved wavelet selection methods by Carvalho, Andre T., Lima, Antonio C.S., Cunha, Caio F.F.C., Petraglia, Mariane

“…•More effective methodologies to improve partial discharge signal denoising are provided.•A novel approach for determining the number of wavelet decomposition…”
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Virtual instrumentation for high voltage power capacitors assessment through capacitance monitoring and acoustic partial discharge detection by Carvalho, Andre T., Amorim, Helio P., Cunha, Caio F. C., Ferreira, Lilian S., Cagido, Mayara C., Borges, Joao B.

“…This paper describes a virtual instrumentation system developed for the laboratory evaluation of high voltage power capacitor units in the end of life. The…”
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A new methodology for the evaluation of the influence of discrete spectral interference on partial discharge measurements in the field by Carvalho, Andre T., Cunha, Caio F. C., Machado, Felipe M., Lima, Antonio C. S., Patraglia, Mariane R.

“…Partial discharge (PD) detection is the most effective way of determining the integrity of insulation systems in high voltage electric equipment. Besides its…”
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Time series classification via divergence measures between probability density functions by Mello, Carlos E., Carvalho, André S.T., Lyra, Adria, Pedreira, Carlos E.

“…•A new model for time series representation by means of probability density functions.•A new method for TSC based on kNN algorithms.•The use of the Integrated…”
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Virtual instrumentation for Partial Discharge monitoring by Carvalho, Andre T., Amorim, Helio P., Cunha, Caio F. C., Rodrigues, Thiago B., Brasil, Fernando S., Vilhena, Paulo R. M., Carvalho, Daniel S.

“…This paper describes a virtual instrumentation architecture to measure and monitor partial discharges (PD) in high voltage equipment. The system has been…”
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