Abstract
Dielectric Functionally Graded Material (d-FGM) is a kind of novel dielectric materials with spatially inhomogeneous dielectric property distribution. It could be applied to effectively control the electric field distribution inside and along the insulator by adjusting the permittivity or conductivity distribution, and thus to remarkably improve the dielectric strength. Considering the divergence existing between structural optimization and material modification in conventional electrical insulation design, d-FGM combines them together innovatively and could bring conceptual improvement to insulation design. The application mechanism as well as the research progress of d-FGM in electrical insulation is reviewed. Further, key scientific problems and possible solutions are explained with respect to design, fabrication, non-destructive dielectric property measurement and physical mechanism of discharge initiation and development, which is expected to guide and promote academic study and industrial application of d-FGM in the insulation field.
| Original language | English |
|---|---|
| Pages (from-to) | 4232-4245 |
| Number of pages | 14 |
| Journal | Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering |
| Volume | 37 |
| Issue number | 14 |
| DOIs | |
| State | Published - 20 Jul 2017 |
Keywords
- 3D printing
- Dielectric strength
- Discharge characteristics
- Electric field optimization
- Functionally graded materials
- Solid insulation
- Tomographic imaging