2005•Unpublished venueRequires access

DSP control system of brushless DC motor without position sensor

Huang Qingxin, Hui Liang

Abstract

This paper designs a kind of variable speed control system of a brushless DC motor (BLDCM) without a rotor position-sensor. Based on intelligent power module and DSP, this system uses the back electromotive force (back-EMF) method to implement the position-sensorless control for brushless DC motor. The system is highly integrated with flexible control and strong reliability. Experimental results indicate that this system has a high performance.

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Available abstract

Key concepts: DC motor, Counter-electromotive force, Position sensor, Digital signal processing, Rotor (electric), Control system, Computer science, Reliability (semiconductor)