The emphasis of this paper is the commutation control of sensorless BLDC motor, which is used to drive Photovoltaic Pumps.
本文所研究的重点是无位置传感器直流无刷电机的换向控制，电机驱动的对象为光伏水泵系统。
An idea is developed in the paper that position-sensorless BLDC motor is used as driver of EMA, with the advantages of maintenance and reliability besides small size and light weight.
提出了一种用无位置传感器的无刷直流电动机来作为电作动器的驱动电机的思想。
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