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A synchronised multi-motor control system using sensorless induction motor drives

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3 Author(s)
Turl, G. ; Nottingham Univ., UK ; Sumner, M. ; Asher, G.M.

This paper outlines a high-performance induction motor sensorless control strategy engineered for high speed holding accuracy. The strategy utilises a model-based method, tuned by a speed estimate derived from rotor slot harmonic effects seen in stator quantities. Two 4 kW machines, both running the developed scheme, are speed synchronised using a bi-axial cross-coupled control method. Results are shown to be comparable to those obtained from the same synchronisation scheme, and on the same rig, using encoded indirect rotor flux oriented (IRFO) control.

Published in:

Power Electronics, Machines and Drives, 2002. International Conference on (Conf. Publ. No. 487)

Date of Conference:

4-7 June 2002