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Design of Brushless DC Motor Controller and Implementation

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Design of Brushless DC Motor Controller and Implementation

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Design of Brushless DC Motor Controller and Implementation

Electronic Information Engineering Specialty

Abstract: The brushless DC motors have the advantage of small,good debugging performance,low weight,and high efficiency. So it has been widely used now. And this restricts the industrial drive applications,After the attachment with sensorless control. This paper mainly reserches the sensorless control technology for BLDCM,designs and control BLDCM without position sensor. I use MATLAB guide to debug PID parameter.

designing a controller of brushless DC motor and do some experiments for this control system. I use the STM32 MCU as the core microprocessor of hardware system.The results of the experiment show that the rotor position detection system can perfectly detect the location of back-EMF zero-crossing signal,and ensuring the correct motor commutation and stable operation.The whole control system can control the brushless DC motor stating smoothly,and use the Sliding rheostat to achieve speed control.

Key words£ºBrushless dc motor£» motor drive£»commutation; back-emf

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