Title :
Cancellation of torque ripple due to nonidealities of permanent magnet synchronous machine drives
Author :
Wu, A.P. ; Chapman, P.L.
Author_Institution :
Northrop Grumman Space Technol., Redondo Beach, CA, USA
Abstract :
A method for calculating current waveforms to drive permanent-magnet synchronous machines for canceling torque ripple and minimizing stator ohmic losses is presented. The method is comparatively simple to those previously shown, and is more general. The method is valid for any shape of back EMF and can be used for unbalanced, asymmetrical operation. Simple equations result that can easily be applied in real time controls.
Keywords :
losses; machine control; optimisation; permanent magnet motors; stators; synchronous motor drives; torque; back EMF; current waveforms calculation; nonidealities; optimisation; permanent magnet synchronous machine drives; real time control; star-connection constraint; stator ohmic losses minimisation; torque ripple cancellation; unbalanced asymmetrical operation; Computer hacking; Equations; Permanent magnet machines; Pulse width modulation; Servomotors; Shape; Space technology; Stators; Torque measurement; Voltage;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218304
