A Novel Permanent Magnet DC Motor and Sensorless Electrical Drive System

This work describes a brushless permanent magnet motor in which the stator field is produced from coils wound onto individual stator teeth and energized from a commutation system that is self-controlled directly from the stator coil transient electrical characteristics. This concept allows flexibili...

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Bibliographic Details
Published inElectric power components and systems Vol. 29; no. 1; pp. 15 - 28
Main Author P. Hartas, A. Shahin, K. I. Nuttall, D. W. Shimmin
Format Journal Article
LanguageEnglish
Published Informa UK Ltd 01.01.2001
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Summary:This work describes a brushless permanent magnet motor in which the stator field is produced from coils wound onto individual stator teeth and energized from a commutation system that is self-controlled directly from the stator coil transient electrical characteristics. This concept allows flexibility to optimize the performance of the motor while eliminating the need for a separate rotor position sensor to control commutation. The system has been designed as the first step toward the integration of the drive system inside the motor itself, which promises a compact, optimized motor/drive unit with low electromagnetic emission properties. This work describes a prototype system developed to provide a practical demonstration of the commutation scheme and presents the circuits used and sample waveforms obtained.
ISSN:1532-5008
1532-5016
DOI:10.1080/153250001461156