Utilize este identificador para referenciar este registo: http://hdl.handle.net/10071/32399
Autoria: Martins, A. A.
Vaz, D. C.
Silva, T. A. N.
Cardoso, M.
Carvalho, A.
Data: 2024
Título próprio: Clustering of wind speed time series as a tool for wind farm diagnosis
Título da revista: Mathematical and Computational Applications
Volume: 29
Número: 3
Referência bibliográfica: Martins, A. A., Vaz, D. C., Silva, T. A. N., Cardoso, M., & Carvalho, A. (2024). Clustering of wind speed time series as a tool for wind farm diagnosis. Mathematical and Computational Applications, 29(3), Article 35. https://doi.org/10.3390/mca29030035
ISSN: 1300-686X
DOI (Digital Object Identifier): 10.3390/mca29030035
Palavras-chave: Time series
Wind data
Clustering
K-medoids
COMB distance
Visual interpretation tools
Wind farm diagnosis
Resumo: In several industrial fields, environmental and operational data are acquired with numerous purposes, potentially generating a huge quantity of data containing valuable information for management actions. This work proposes a methodology for clustering time series based on the K-medoids algorithm using a convex combination of different time series correlation metrics, the COMB distance. The multidimensional scaling procedure is used to enhance the visualization of the clustering results, and a matrix plot display is proposed as an efficient visualization tool to interpret the COMB distance components. This is a general-purpose methodology that is intended to ease time series interpretation; however, due to the relevance of the field, this study explores the clustering of time series judiciously collected from data of a wind farm located on a complex terrain. Using the COMB distance for wind speed time bands, clustering exposes operational similarities and dissimilarities among neighboring turbines which are influenced by the turbines’ relative positions and terrain features and regarding the direction of oncoming wind. In a significant number of cases, clustering does not coincide with the natural geographic grouping of the turbines. A novel representation of the contributing distances—the COMB distance matrix plot—provides a quick way to compare pairs of time bands (turbines) regarding various features.
Arbitragem científica: yes
Acesso: Acesso Aberto
Aparece nas coleções:BRU-RI - Artigos em revistas científicas internacionais com arbitragem científica

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