On Wilcoxon rank sum test for condition monitoring and fault detection of wind turbines
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TLDR
In this paper , the Wilcoxon rank sum test (WRST) has been used for operation state monitoring and automated fault detection of wind turbines, which can monitor one or several key process parameters of the wind turbine simultaneously.About:
This article is published in Applied Energy.The article was published on 2022-07-01 and is currently open access. It has received 17 citations till now. The article focuses on the topics: Turbine & Wind power.read more
Citations
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Journal ArticleDOI
A two-stage anomaly decomposition scheme based on multi-variable correlation extraction for wind turbine fault detection and identification
TL;DR: In this paper , a two-stage anomaly decomposition scheme based on the multi-variable correlation extraction is proposed for WT fault detection and anomaly causes identification, which can effectively provide early warning and reduce false alarms rate by exploring the multivariate correlations.
Journal ArticleDOI
Advances in Fault Condition Monitoring for Solar Photovoltaic and Wind Turbine Energy Generation: A Review
Arturo Y. Jaen-Cuellar,David A. Elvira-Ortiz,Roque Alfredo Osornio-Rios,Jose A. Antonino-Daviu +3 more
TL;DR: In this article , an analysis of the most common faults that appear in wind and photovoltaic generation systems is presented, and the main techniques and strategies developed for the identification of such faults are discussed in order to address the advantages, drawbacks, and trends in the field of detection and classification of specific and combined faults.
Journal ArticleDOI
Analysis and experiment of auxetic centrifugal softening impact energy harvesting from ultra-low-frequency rotational excitations
TL;DR: In this article , the authors proposed an auxetic centrifugal softening impact energy harvester (ASIEH) to achieve high energy output at ultra-low rotational frequencies via simple energy harvesting structures.
Journal ArticleDOI
Quality Requirement Documentation Guidelines for Agile Software Development
TL;DR: In this paper , the authors developed the Agile QR-Doc QR documentation guidelines, which aim to support QR documentation in agile software development (ASD), where minimal documentation and rapid delivery are the focus, Quality requirements (QRs) are often underspecified and not documented.
Journal ArticleDOI
Quality Requirement Documentation Guidelines for Agile Software Development
TL;DR: The validation of the Agile QR-Doc reveals the relevance, understandability and usefulness of the guidelines to support QR documentation in ASD, and indicates that the guidelines consider important aspects for documenting QRs and that they do not negatively affect the agility of the software development process.
References
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Co-integration and Error Correction: Representation, Estimation and Testing
TL;DR: The relationship between co-integration and error correction models, first suggested in Granger (1981), is here extended and used to develop estimation procedures, tests, and empirical examples.
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Statistical analysis of cointegration vectors
TL;DR: In this paper, the authors consider a nonstationary vector autoregressive process which is integrated of order 1, and generated by i.i.d. Gaussian errors, and derive the maximum likelihood estimator of the space of cointegration vectors and the likelihood ratio test of the hypothesis that it has a given number of dimensions.
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Individual Comparisons by Ranking Methods
TL;DR: The comparison of two treatments generally falls into one of the following two categories: (a) a number of replications for each of the two treatments, which are unpaired, or (b) we may have a series of paired comparisons, some of which may be positive and some negative as mentioned in this paper.
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On a Test of Whether one of Two Random Variables is Stochastically Larger than the Other
Henry B. Mann,D. R. Whitney +1 more
TL;DR: In this paper, the authors show that the limit distribution is normal if n, n$ go to infinity in any arbitrary manner, where n = m = 8 and n = n = 8.
Journal ArticleDOI
Condition monitoring of wind turbines: Techniques and methods
TL;DR: A review of the state-of-the-art in the condition monitoring of wind turbines can be found in this article, which describes the different maintenance strategies, condition monitoring techniques and methods, and highlights in a table the various combinations of these that have been reported in the literature.
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