Patent ID: 11894740
Assignee: WOLONG ELECTRIC GROUP CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. The method for determining magnetic polarity of a sensorless permanent magnet assisted synchronous reluctance motor of claim 13 wherein selecting the magnitude of the positive voltage pulse and negative voltage pulse includes selecting the magnitude of the positive voltage pulse and negative voltage pulse based on characteristics of the sensorless permanent magnet assisted synchronous reluctance motor such that one of the positive voltage pulse and the negative voltage pulse desaturates the directionally magnetized flux density in the at least one of the plurality of surface bridges so that d-axis inductance increases above a predetermined threshold and the other one of the positive voltage pulse and the negative voltage pulse further magnetizes the flux density in the at least one of the plurality of surface bridges so that d-axis inductance remains below the predetermined threshold.