Title :
A synchronised multi-motor control system using sensorless induction motor drives
Author :
Turl, G. ; Sumner, M. ; Asher, G.M.
Author_Institution :
Nottingham Univ., UK
Abstract :
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.
Keywords :
angular velocity control; digital control; digital signal processing chips; induction motor drives; machine control; machine vector control; magnetic flux; magnetic variables control; parameter estimation; rotors; synchronisation; 4 kW; DSP board; bi-axial cross-coupled control method; encoded indirect rotor flux oriented control; high speed holding accuracy; high-performance induction motor sensorless control; model-based method; rotor slot harmonic effects; sensorless position synchronisation; speed estimate; speed synchronised machines; stator quantities;
Conference_Titel :
Power Electronics, Machines and Drives, 2002. International Conference on (Conf. Publ. No. 487)
Print_ISBN :
0-85296-747-0
DOI :
10.1049/cp:20020086