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A low-cost sensorless technique for load torque estimation in a hybrid stepping motor
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UNSPECIFIED (1999) A low-cost sensorless technique for load torque estimation in a hybrid stepping motor. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 46 (4). pp. 833-841. ISSN 0278-0046.
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Abstract
This paper presents a method of torque measurement in a hybrid stepping motor without the use of speed or position sensors. It is shown that torque ripple can be minimized by appropriate shaping of the phase-current pulses and that efficiency can be maximized when the level of mechanical load applied to the shaft is known. A controller is described which generates a signal related to the mechanical load by observation of the phase-current profile using a novel low-complexity technique. Practical results are presented, showing the torque estimation relative to measured torque.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TL Motor vehicles. Aeronautics. Astronautics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Journal or Publication Title: | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | ||||
Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | ||||
ISSN: | 0278-0046 | ||||
Official Date: | August 1999 | ||||
Dates: |
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Volume: | 46 | ||||
Number: | 4 | ||||
Number of Pages: | 9 | ||||
Page Range: | pp. 833-841 | ||||
Publication Status: | Published |
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