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2006•Journal of Yanshan UniversityRequires access

Research on sensorless and brushless DC motor control system based on DSP

Zhang Hong-jing

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Abstract

In this paper, a control system for sensorless and brushless DC motor based on a high speed digital processor (DSP) ispresented. The back-EMF commutation method is used to gain the position signal of rotor. The start method by means of rotorpre-setting for the BLDCM without position sensor is analyzed in this paper. The dual close-loop control for the current and speedis realized and the software and hardware design solutions for this system based on DSP are described.

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What this paper is about

In this paper, a control system for sensorless and brushless DC motor based on a high speed digital processor (DSP) ispresented. The back-EMF commutation method is used to gain the position signal of rotor. The start method by means of rotorpre-setting for the BLDCM without position sensor is analyzed in this paper. The dual close-loop control for the current and speedis realized and the software and hardware design solutions for this system based on DSP are described.

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Available abstract

In this paper, a control system for sensorless and brushless DC motor based on a high speed digital processor (DSP) ispresented. The back-EMF commutation method is used to gain the position signal of rotor. The start method by means of rotorpre-setting for the BLDCM without position sensor is analyzed in this paper. The dual close-loop control for the current and speedis realized and the software and hardware design solutions for this system based on DSP are described.

Key concepts: Digital signal processing, DC motor, Commutation, Digital signal processor, Rotor (electric), Computer science, Position sensor, Software

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