DocumentCode :
3712057
Title :
Self-sensing control of permanent-magnet synchronous machines with multiple saliencies using pulse-voltage-injection
Author :
Lei Chen;Gunther G?tting;Simon Dietrich;Ingo Hahn
Author_Institution :
Robert Bosch GmbH, Tamm, Germany
fYear :
2015
Firstpage :
1
Lastpage :
9
Abstract :
This paper describes a self-sensing control scheme based on pulse-voltage-injection for permanent-magnet synchronous machines (PMSMs). Multiple saliencies, as well as the saturation and reluctance-based coupling effects are studied by means of analytical methods and are proved with FEM simulations and measurements. These phenomena cause a constant estimated error of the rotor angle as well as periodic errors with harmonics of order 6k. The primary saliency of the considered interior PMSM with concentrated windings (CWIPMSM) is strongly dependent on the load, so that the self-sensing capability disappears at some critical operating points. In this study, the parameters of the multiple saliencies are identified based on the proposed self-sensing method. The secondary saliencies are compensated with a closed loop control structure. The effectiveness of the proposed method is confirmed by experimental results.
Keywords :
"Sensors","Voltage control","Permanent magnet motors","Synchronous motors"
Publisher :
ieee
Conference_Titel :
Industry Applications Society Annual Meeting, 2015 IEEE
Type :
conf
DOI :
10.1109/IAS.2015.7356811
Filename :
7356811
Link To Document :
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