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Measurement and Adaptive Decoupling of Cross-Saturation Effects and Secondary Saliencies in Sensorless Controlled IPM Synchronous Machines

2008; Institute of Electrical and Electronics Engineers; Volume: 44; Issue: 6 Linguagem: Inglês

10.1109/tia.2008.2006335

1939-9367

David Reigosa, Pablo García, Dejan Raca, Fernando Briz, R. D. Lorenz,

Magnetic Bearings and Levitation Dynamics

This paper analyzes the effects of magnetic saturation, including cross-saturation and secondary saliencies, on the saliency-based sensorless control of interior permanent magnet synchronous machines. These effects are mitigated by adaptively decoupling saturation-induced saliencies via a structured neural network. This paper includes the identification of the dominant saturation-induced components of the carrier-signal current interfering with the rotor-position-dependent component being tracked, characterization of these components, and implementation of a nonlinear adaptive saturation-induced-component structured neural network model to perform their decoupling.