The kick-off meeting was held on the 11th of February at CEA in Grenoble, France.
ANASTASIA started on the 1st January 2010 and will last 3 years. This project is coordinated by CEA-LITEN and has been awarded a grant valued at 3.1 Million Euros.
ANASTASIA aims to replace the current insulator tapes for high power applications. The current tapes are thick, semi-rigid and show poor thermal conductivity and mechanical stability. The goal is to replace this system with a thinner flexible structure, incorporating nanofillers and/or mica flakes. The objective is to increase the field strength from 2.5-3 to 4 kV/mm, to increase the thermal conductivity from 0.3 to 0.5 W/m.°C, and to increase the thermal class from F 155°C to H 180°C.
At the end of project, a demonstrator will be made as well as an impact study on the generator design.
Incorporating nano-objects will enhance the mechanical properties and the thermal conductivity and enable a better control of the electrical properties. The nano-objects should decrease the charge accumulation.
Three routes with increasing difficulty will be studied.
- Top-down approach: nanostructured epoxy. Nanofillers will be incorporated into the epoxy, the work will aim at studying new nanofillers and a good integration of the fillers in the polymer.
- Bottom-up approach: in situ synthesis of nanofillers in the epoxy
- Quasi-inorganic approach: the epoxy will be replaced by a hybrid sol-gel matrix, in order to increase the thermal properties and at the same time to conserve the mechanical properties.
The structure of the project is the following:
