Position Sensorless Control of Brushless DC Motor

Jin Xiang Fang

doi:10.4028/www.scientific.net/AMR.915-916.418

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 915-916Position Sensorless Control of Brushless DC Motor

Position Sensorless Control of Brushless DC Motor

Abstract:

According to the chattering problem in the traditional sliding mode observer of the position sensorless control of brushless DC motor, a novel quasi sliding mode observer for rotor position estimation was proposed, which took the error between the actual and estimated currents as sliding surface and tracked the actual rotor position according to the mathematical relationship of back EMF and speed of the motor. Then the sensorless control system of the brushless DC motor based on the novel sliding mode observer was designed. Simulation results showed that the novel sliding mode control method could improve the rotor position estimation accuracy and effectively suppress the chattering problem to enhance the robustness of system.

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Periodical:

Advanced Materials Research (Volumes 915-916)

Pages:

418-421

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.915-916.418

Citation:

Cite this paper

Online since:

April 2014

Authors:

Jin Xiang Fang*

Keywords:

Brushless Dc Motor (BLDCM), Chattering, Rotor Position, Sensorless, Sliding Mode Observer

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* - Corresponding Author

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