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Title |
Sensorless Control Strategy for Brushless DC Motor Drives Based on Sliding Mode Observer |
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Author |
Jalal Jamshidi, Hossein Tohidi |
| Citation |
Vol. 16 No. 12 pp. 43-48 |
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Abstract |
Brushless DC (BLDC) motors are widely used in a variety of applications such as industrial automation and electric vehicle (EV) appliances. Back electromotive force EMF is the only electric quantity able to provide instantaneous information on the mechanical variables of the BLDC motor that is true for the position and speed. In this paper, an accurate Sliding Mode Observer of the trapezoidal back EMF is applied to the BLDC motor in order to ensure the control without speed and position sensors. A theoretical study is developed and the effectiveness of proposed control strategy has been validated by simulation results. |
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Keywords |
Brushless DC (BLDC) motor, Electric vehicle (EV), Sensorless control, Sliding mode observer, Torque ripple. |
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