Separating anisotropic material effects in the control signals of inverter-fed AC machines

Wolbank, T.M.; Machl, Juergen L.; Hauser, H.

doi:10.1016/j.jmmm.2003.12.979

Cited by 3 publications

(1 citation statement)

References 1 publication

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“…This current slope, in fact the first time derivative, is modulated by all spatial saliencies that are affecting the leakage inductance. The sources of these saliencies can be various, for instance the saturation of the machine by the main flux, the slotting, or lamination material anisotropy (Wolbank et al , 2004). In case of the exploitation of the signal for control, only one of these spatial saliencies deals as the major effect, while the others have parasitic character.…”

Section: Introductionmentioning

confidence: 99%

Separation of saliency information for speed sensorless detection of induction machines flux and rotor position

Wolbank

Metwally

2010

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose-The purpose of this paper is to describe an effective method to eliminate or substantially reduce the modulation harmonics due to saturation and inter-modulation for sensorless speed control induction motor drives at low and zero speed with high loads using artificial neural networks (ANN). Design/methodology/approach-In this paper, the separation of the saturation signal, the slotting signal, and the inter-modulation signal components in squirrel cage induction machines operating at low and zero frequency using ANN has been experimentally implemented and measurement results are given. Findings-The measurement results show the advantages of the application of the proposed technique at low and zero speed sensorless control even at high load levels. Originality/value-The paper describes an effective method of eliminating or reducing modulation harmonics in induction motor drives.

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Section: Introductionmentioning

confidence: 99%