Self-sensing control of PM synchronous machines for the entire speed range with reduced computational effort based on a novel MRAS approach

This paper focuses on some of the remaining challenges of self-sensing control for permanent magnet synchronous machines (PMSM), which are in detail: combination of EMF-based and magnetic saliency-based methods; influence of the fundamental current control on saliency-based methods; position transducerless system identification of “key parameters/effects” (saturation effects,...); and reduction of computational effort. These demands are taken into account by a novel Model Reference Adaptive System (MRAS) which is based on an armature flux observer.