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Pombalina

Livro / Proceedings of Maintenance Performance Measurement and Management (MPMM) Conference 2014

Aggregation of electric current consumption features for extraction of maintenance KPIs

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Resumo: For all electric powered machines there is a possibility of extracting information and calculating Key Performance Indicators (KPIs) from the electric current signal. Depending on the time window, sampling frequency and type of analysis, different indicators from the micro to macro level can be calculated for such aspects as maintenance, production, energy consumption etc. On the micro-level, the indicators are generally used for condition monitoring and diagnostics and are normally based on a short time window and a high sampling frequency. The macro indicators are normally based on a longer time window with a slower sampling frequency and are used as indicators for overall performance, cost or consumption. The indicators can be calculated directly from the current signal but can also be based on a combination of information from the current signal and operational data like rpm, position etc. One or several of those indicators can be used for prediction and prognostics of a machine’s future behaviour. This paper uses this technique to calculate indicators for maintenance and energy optimisation in electric powered machines and fleet of machines, especially machine tools.
DOI: 10.14195/978-972-8954-42-0_23
ISBN: 978-972-8954-42-0 (PDF)
Acesso: open access
Coleção Digital: Pombalina
Local de publicação: Coimbra
Idioma: Inglês
Tipo: Capítulo de Livro
Nº de visualizações: 59
Nº de downloads: 7

Notas: Colecao:http://hdl.handle.net/10316.2/33309

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