engleski

Start-up of Sensorless Brushless DC Motor Based on Open Phase Voltage Measurement

This paper presents a method for start-up of sensorless brushless DC motor. A specific switching technique is applied to bring the motor speed to a threshold value required for regular sensorless operation. The procedure is based on bringing the rotor in the known position and determination of the instant of the first commutation by a special experiment. The start-up procedure is integrated with the back EMF zero-crossing detection sensorless strategy and tested on the laboratory setup.

brushless DC motor; sensorless start-up; laboratory setup

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