Self-Sensing Control of Permanent-Magnet Synchronous Machines With Multiple Saliencies Using Pulse-Voltage-Injection

Autor: Simon Dietrich, Lei Chen, Ingo Hahn, Gunther Gotting
Rok vydání: 2016
Předmět:
Zdroj: IAS
ISSN: 1939-9367
0093-9994
DOI: 10.1109/tia.2016.2557299
Popis: 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 finite element method simulations and measurements. These phenomena cause a constant estimated error of the rotor angle, as well as periodic errors with harmonics of order $6{ k}$ . The primary saliency of the considered interior PMSM with concentrated windings 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.
Databáze: OpenAIRE