Yoshiaki Sakagami

Mr. Yoshiaki Sakagami

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2021 in Applied Energy
Verified
Journal Article
Closed access
WRWilliam Corrêa Radünz
William Corrêa Radünz
YSYoshiaki Sakagami
Yoshiaki Sakagami
RHReinaldo Haas
Reinaldo Haas
APAdriane Prisco Petry
Adriane Prisco Petry
JPJúlio César Passos
Júlio César Passos
EDEduardo Dias
Eduardo Dias

3 August 2022 in Energies
Verified
Journal Article
Open access
PDF file
SBSarah Barber
Sarah Barber
LLLuiz Andre Moyses Lima
Luiz Andre Moyses Lima
YSYoshiaki Sakagami
Yoshiaki Sakagami
JQJulian Quick
Julian Quick
ELEffi Latiffianti
Effi Latiffianti
FHFlorian Hammer
Florian Hammer
In the next decade, further digitalisation of the entire wind energy project lifecycle is expected to be a major driver for reducing project costs and risks. In this paper, a literature review on the challenges related to implementation of digitalisation in the wind energy industry is first carried out, showing that there is a strong need for new solutions that enable co-innovation within and between organisations. Therefore, a new collaboration method based on a digital ecosystem is developed and demonstrated. The method is centred around specific “challenges”, which are defined by “challenge providers” within a topical “space” and made available to participants via a digital platform. The data required in order to solve a particular “challenge” are provided by the “challenge providers” under the confidentiality conditions they specify. The method is demonstrated via a case study, the EDP Wind Turbine Fault Detection Challenge. Six submitted solutions using diverse approaches are evaluated. Two of the solutions perform significantly better than EDP’s existing solution in terms of Total Prediction Costs (saving up to €120,000). The digital ecosystem is found to be a promising solution for enabling co-innovation in wind energy in general, providing a number of tangible benefits for both challenge and solution providers.

20 April 2023 in Energies
Verified
Journal Article
Open access
PDF file
SBSarah Barber
Sarah Barber
UIUnai Izagirre
Unai Izagirre
OSOscar Serradilla
Oscar Serradilla
JOJon Olaizola
Jon Olaizola
EZEkhi Zugasti
Ekhi Zugasti
CHCharles Henderson
Charles Henderson
In this paper, a set of best practice data sharing guidelines for wind turbine fault detection model evaluation is developed, which can help practitioners overcome the main challenges of digitalisation. Digitalisation is one of the key drivers for reducing costs and risks over the whole wind energy project life cycle. One of the largest challenges in successfully implementing digitalisation is the lack of data sharing and collaboration between organisations in the sector. In order to overcome this challenge, a new collaboration framework called WeDoWind was developed in recent work. The main innovation of this framework is the way it creates tangible incentives to motivate and empower different types of people from all over the world to share data and knowledge in practice. In this present paper, the challenges related to comparing and evaluating different SCADA-data-based wind turbine fault detection models are investigated by carrying out a new case study, the “WinJi Gearbox Fault Detection Challenge”, based on the WeDoWind framework. A total of six new solutions were submitted to the challenge, and a comparison and evaluation of the results show that, in general, some of the approaches (Particle Swarm Optimisation algorithm for constructing health indicators, performance monitoring using Deep Neural Networks, Combined Ward Hierarchical Clustering and Novelty Detection with Local Outlier Factor and Time-to-failure prediction using Random Forest Regression) appear to exhibit high potential to reach the goals of the Challenge. However, there are a number of concrete things that would have to have been done by the Challenge providers and the Challenge moderators in order to ensure success. This includes enabling access to more details of the different failure types, access to multiple data sets from more wind turbines experiencing gearbox failure, provision of a model or rule relating fault detection times or a remaining useful lifetime to the estimated costs for repairs, replacements and inspections, provision of a clear strategy for training and test periods in advance, as well as provision of a pre-defined template or requirements for the results. These learning outcomes are used directly to define a set of best practice data sharing guidelines for wind turbine fault detection model evaluation. The guidelines can be used by researchers in the sector in order to improve model evaluation and data sharing in the future.

18 December 2022 in Journal of the Brazilian Society of Mechanical Sciences and Engineering
Verified
Journal Article
Closed access
PDF file
YSYoshiaki Sakagami
Yoshiaki Sakagami
WRWilliam Corrêa Radünz
William Corrêa Radünz
PSPedro Santos
Pedro Santos
RHReinaldo Haas
Reinaldo Haas
JPJúlio César Passos
Júlio César Passos
FTFrederico F. Taves
Frederico F. Taves

14 March 2023 in Preprints.org
Verified
Preprint
Open access
PDF file
SBSarah Barber
Sarah Barber
UIUnai Izagirre
Unai Izagirre
OSOscar Serradilla
Oscar Serradilla
JAJon Olaizola Alberdi
Jon Olaizola Alberdi
EUEkhi Zugasti Uriguen
Ekhi Zugasti Uriguen
CHCharles Henderson
Charles Henderson
The digital era offers many opportunities to the wind energy industry and research community. Digitalisation is one of the key drivers for reducing costs and risks over the whole wind energy project life cycle. One of the largest challenges in successfully implementing digitalisation is the lack of data sharing and collaboration between organisations in the sector. In order to overcome this challenge, a new collaboration method called WeDoWind was developed in recent work. The main innovation of this method is the way it creates tangible incentives to motivate and empower different types of people from all over the world to actually share data and knowledge in practice. In this present paper, the challenges related to comparing and evaluating different SCADA data based wind turbine fault detection models are investigated by carrying out a new case study, the "WinJi Gearbox Fault Detection Challenge", based on the WeDoWind Method. Six new solutions were submitted to the challenge, and a comparison and evaluation of the results show that, in general, some of the approaches (Particle Swarm Optimisation algorithm for constructing health indicators, performance monitoring using Deep Neural Networks, Combined Ward Hierarchical Clustering and Novelty Detection with Local Outlier Factor and Time-to-failure prediction using Random Forest Regression) appear to have a high potential to reach the goals of the Challenge. However, there are a number of concrete things that would have to have been done by the Challenge providers and the Challenge moderators in order to ensure success. This includes enabling access to more details of the different failure types, access to multiple data sets from more wind turbines experiencing gearbox failure, provision of a model or rule relating fault detection times or a remaining useful lifetime to the estimated costs for repairs, replacements and inspections, provision of a clear strategy for training and test periods in advance, as well as provision of a pre-defined template or requirements for the results. These learning outcomes are used directly to define a set of best practice data sharing guidelines for wind turbine fault detection model evaluation. They can be used by the sector in order to improve model evaluation and data sharing in the future.

24 March 2020 in Boundary-Layer Meteorology
Verified
Journal Article
Closed access
PDF file
YSYoshiaki Sakagami
Yoshiaki Sakagami
RHReinaldo Haas
Reinaldo Haas
JPJúlio César Passos
Júlio César Passos