About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Magnetic Materials for Energy and Power Conversion Applications
|
Presentation Title |
Tunable Power Inductors Utilizing Magnetoelectric PZT/Metglas Composites |
Author(s) |
Mark Nations, Paul Ohodnicki, Subhashish Bhattacharya |
On-Site Speaker (Planned) |
Mark Nations |
Abstract Scope |
Voltage tunable inductors utilizing multiferroic composite cores are investigated. Cores comprised of a piezoelectric phase (PZT) and magnetostrictive phase (Metglas ribbon) demonstrate tunable magnetic permeability by magnetoelastic coupling between phases. Inductors created from such composite cores show large inductance tunability, quality factor tunability, and low energy consumption. The relationship between magnetocrystalline anisotropy and stress-induced anisotropy in the PZT/Metglas system is investigated. While previous work focused on small-scale devices, a tunable inductor with these qualities is highly desirable for power conversion and control. Two topologies for magnetoelectric power inductors are investigated. Their feasibility is evaluated in a case study of a DC circuit breaker where a tunable inductor is used to limit fault current. Results are compared to existing approaches to tunable power inductors such as saturable reactors. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |