Project

A brushless resonant exciter concept for radial flux motors

Code
DOCT/012308
Duration
22 August 2024 → 20 September 2026 (Ongoing)
Doctoral researcher
Research disciplines
  • Engineering and technology
    • Electrical machines and transformers
Keywords
electrically excited synchronous machine compact electric machines wireless inductive power transfer
 
Project description

Electrically excited synchronous machines are used in high-performance applications across the electric vehicle, wind power, and aerospace sectors. The rotating rotor coils are conventionally energized in one of two ways. The first method uses sliding contacts between conductive brushes and slip rings, which provide straightforward control of rotor power, but introduce friction losses and wear. The other method requires an additional generator-like device mounted on the machine shaft in line with the main machine. This “exciter” transfers power wirelessly to the rotor, but increases the overall size, mass and cost of the system. The purpose of this project is to transmit power to the rotor via wireless inductive power transmission through the main air gap, resulting in a compact and durable machine that can be driven by a conventional power electronic module.