The 2 years CORTIR project supported by EUDP, has officially initiated during the kick-off meeting, held on the 27th of February 2019, where 21 participants gathered at Bladena’s offices and the project’s future plans were presented during a fruitful discussion and feedback exchange. The project aims to cope with the various challenges of the appropriate maintenance strategies of wind turbines blades’ structural related issues.
When damages and failures occur on wind turbine blades, it is semi-unexcepted and often outside the operational budget. The associated costs for repair actions often end up as a dispute between WTOs, OEMs and insurance companies, and risk will increase with future up-scaling of blades.
In the EUDP project “Cost and Risk Tool for Interim and Preventive Repair” (CORTIR) the whole value chain in the wind industry is brought together to work on a new beneficial strategy to reduce LCoE.
A Cost and Reliability Tool (CAR Tool) will be developed on basis of state-of-the-art research from AAU, DTU and Bladena, and utilized as a decision support tool for repair and maintenance strategies minimizing risk and cost. The vision of this project is to make the decision-making process -regarding maintenance decisions- easier and to support the entire Value chain on how to minimize Risk, Operation and Maintenance cost. This will be achieved through the CAR Tool which will be the response to the industry’s needs and should be “accepted” by all the members of the value chain.
The transverse crack damage type will be used as a case study for the CAR Tool demonstration. Furthermore, due to the increased reports of the transverse cracks in the field, occurring on various blade types, an in-depth investigation of transverse cracks will be carried out.
Field data statistics, Structural understanding using state-of-the art FEM modelling as well as fracture mechanics, sub-component testing and large-scale testing will be used in the investigation procedures having the aim of understanding the mechanics of how crack initiates and develops.
In addition to this, during the CORTIR project a new technology solution, to prevent extended down time of wind turbines after lightning damages, will be developed and demonstrated in the field.
The project consortium consists of e.g. 12 WTOs, 3 OEMs, CODAN and two universities. The project is headed by Find Mølholt Jensen, current CTO of Bladena as the project manager.
The Chairman of the board of directors in the EUDP-program, Thea Larsen, says
From EUDP’s perspective we are pleased to see, that both the Danish industry and large international players substantially support this new project CORTIR. It is a project with large perspective together with partners which represent the entire value chain. This project is in line with the strategy of EUDP and we look very much forward to follow the progress in the project.