Title :
Demagnetization control for reliable flux weakening control in PM synchronous machine
Author :
Sarikhani, Ali ; Mohammed, Osama
Abstract :
A process for permanent magnet (PM) demagnetization control for optimal and reliable flux weakening control in permanent magnet synchronous machines (PMSM) is presented. A physics-based model was developed to estimate the magnetic flux operating point of the PM poles during the operation of PMSM. The model is enabled to dynamically estimate the average and the partial PM demagnetization due to reverse armature field as well as the PM temperature rise. The model is a function of physical geometry and material of the PMSM, physics of demagnetization and the ambient temperature. The demagnetization assessment and control is verified on a V-type PMSM using the modified FE-based coupled thermal-field-circuit phase variable model and the time step FE analysis.
Keywords :
demagnetisation; estimation theory; finite element analysis; geometry; machine control; magnetic flux; optimal control; permanent magnet machines; reliability; synchronous machines; PM pole; V-type PMSM material; magnetic flux operating point estimation; modified FE-based coupling; optimal weakening control; permanent magnet demagnetization estimation control; permanent magnet synchronous machine; physical geometry function; physics-based model; reliable flux weakening control; reverse armature field; thermal-field-circuit phase variable model; time step FE analysis; Demagnetization; Finite element methods; Inductance; Magnetic flux; Mathematical model; Permanent magnet machines; Windings; Demagnetization assessment; Demagnetization control; Finite Element (FE) Analysis; Flux weakening control; Permanent magnet Synchronous Machine (PMSM);
Conference_Titel :
Industry Applications Society Annual Meeting (IAS), 2012 IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4673-0330-9
Electronic_ISBN :
0197-2618
DOI :
10.1109/IAS.2012.6374020
