Recent advances in permanent magnet brushless DC motors |
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Authors: | Bhim Singh |
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Affiliation: | (1) Department of Electrical Engineering, Indian Institute of Technology, Hauz Khas, 110 016 New Delhi, India |
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Abstract: | This paper deals with the latest developments in Permanent Magnet Brushless DC (PMBLDC) motor drives. A comprehensive account of the state-of-the-art on types of construction of the motor, closed loop controllers in position, speed and current/torque control and recent trends in inverters, sensors etc. are given. Techniques for mechanical sensors elimination are discussed in detail. Special efforts made to reduce torque ripples, noise and vibrations are described. The impact of microelectronics through integrated chips used in the control of PMBLDC motor drives is given. The increasing applications of this drive due to improved performance and its cost reduction are also enlisted. |
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Keywords: | PMBLDC motor sensors controllers sensorless operation torque pulsations |
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