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Modelling of a Synchronous Permanent Magnet Motor to Allow Comparison of Reference Current Waveforms

Heins, Greg and De Boer, Friso G. (2004). Modelling of a Synchronous Permanent Magnet Motor to Allow Comparison of Reference Current Waveforms. In: Walker, G.R. and Saha, T.K. Australian Universities Power Engineering Conference (AUPEC 2004), Brisbane, Qld., 26-29 September 2004.

Document type: Conference Paper
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Author Heins, Greg
De Boer, Friso G.
Title Modelling of a Synchronous Permanent Magnet Motor to Allow Comparison of Reference Current Waveforms
Conference Name Australian Universities Power Engineering Conference (AUPEC 2004)
Conference Location Brisbane, Qld.
Conference Dates 26-29 September 2004
Conference Publication Title Proceedings of the Australian Universities Power Electronics Conference
Editor Walker, G.R.
Saha, T.K.
Place of Publication Brisbane, Australia
Publisher AUPEC
Publication Year 2004
ISBN 1-864-99775-3   (check CDU catalogue  open catalogue search in new window)
Total Pages 6
HERDC Category E1 - Conference Publication (DEST)
Abstract One of the challenges of optimal synchronous motor control is the determination of the reference current waveform. Traditionally these waveforms have either been square (for brushless DC) or sinusoidal (AC synchronous), however modern electronics allow hybrid waveforms. The best waveform will achieve a balance of maximum efficiency and minimum torque ripple, while achieving the desired torque. To compare current waveforms suitable for the axial flux motor developed at Charles Darwin University, a MATLAB/ SIMULINK c model has been created. Simulation results are presented with a comparison between square, sinusoidal and various hybrid current waveforms. The effect of cogging torque has also been considered. The modelling shows that in most cases the current reference determined by the time domain method produces the best performance, however if efficiency is crucial, torque ripple is acceptable and the three phases of the motor are well balanced, the frequency domain method may produce better results.
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URL http://www.itee.uq.edu.au/~aupec/aupec04/papers_author.htm
 
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