SENSORLESS SELF-STARTING AND CONTROL STRATEGY OF RUSHLESS DC MOTOR

Authors

  • Li Yongbing Rizhao Polytechnic Rizhao 276800 China

DOI:

https://doi.org/10.53555/eijas.v4i2.64

Keywords:

Brushless DC motor, sensorless, square-wave drive, three-step start, back-EMF method, STM32F103

Abstract

Brushless DC motor with sensors have problems, such as theirs large sizes, high costs, limited applications and so on.In order to solve them,based on STM32F103 MCU and taking it as the core,this essay uses  position sensorless control based on square-wave drive,it realizes the switching of zero speed to the motor closed-loop state through three-step start technique,it checks rotor position and speed by back-EMF method.At last,it makes the motor run normally. The effectiveness and feasibility of the control scheme proposed are verified through experiments.

References

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Published

2018-06-27