Abstract
The variation of magnetic parameters due to the magnetic saturation and cross coupling can affect the efficiency and the stability of the control system in electrical machines, especially at high-speed operation. This paper presents an approach independent of the magnetic model parameters to control synchronous motors at the flux-weakening region. In this approach, a model order reduction technique is applied to reduce the finite element model of a synchronous machine. The stator current components and the flux linkage components are the inputs and the outputs of the reduced model, respectively. The reduced model and its inversion are employed to calculate the current reference components from the reference torque. Field oriented control scheme is utilized to implement the overall control system. The proposed control system is validated by means of simulation and experiment on a 2.2 kW permanent magnet synchronous machine.
| Original language | English |
|---|---|
| Title of host publication | 2018 XIII International Conference on Electrical Machines (ICEM) |
| Publisher | IEEE Institute of Electrical and Electronic Engineers |
| Pages | 1510-1516 |
| Number of pages | 7 |
| ISBN (Print) | 978-1-5386-2478-4 |
| DOIs | |
| Publication status | Published - Sept 2018 |
| MoE publication type | A4 Article in a conference publication |
Keywords
- Flux weakening
- Interior permanent magnet synchronous motor
- Model order reduction
- Orthogonal interpolation method
- Vector control