1. A Novel Permanent Magnet DC Motor and Sensorless Electrical Drive System.
- Author
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Hartas, P., Shahin, A., Nuttall, K. I., and Shimmin, D. W.
- Subjects
BRUSHLESS electric motors ,COMMUTATION (Electricity) - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2001
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