An optimal control for saturated interior permanent magnet linear synchronous motors incorporating field weakening

In this paper, the maximum thrust force per ampere (MTPA) strategy for saturated permanent magnet linear synchronous motors over the entire field weakening region is presented. In other words, influence of magnetic saturation on the MTPA and field weakening strategies as well as motor-inverter limit...

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Bibliographic Details
Main Authors: Abroshan, M., Milimonfared, J., Malekian, K., Rahnamaee, A.
Format: Conference Proceeding
Language:English
Subjects:
Field weakening
Force
Inductance
Induction motors
interior permanent magnet linear synchronous motor
magnetic saturation
maximum force per ampere
Permanent magnets
Saturation magnetization
synchronous motor drive
Synchronous motors
Trajectory
velocity control
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Summary:In this paper, the maximum thrust force per ampere (MTPA) strategy for saturated permanent magnet linear synchronous motors over the entire field weakening region is presented. In other words, influence of magnetic saturation on the MTPA and field weakening strategies as well as motor-inverter limitations is considered. Using the modified MTPA strategy leads to minimized copper losses, and so maximum capacity of motor is utilized. The proposed scheme incorporates all optimal strategies and operates the drive within the voltage and current limits of the motor/inverter. Simulation results for a prototype interior permanent magnet linear synchronous motor demonstrate that the MTPA and field weakening strategies can be successfully implemented for vector controlled saturated permanent magnet linear synchronous motor drives.
DOI:10.1109/EPEPEMC.2008.4635417