Side-effects of Hall sensors misplacement on BLDC motor drive operation

Author

Tsotoulidis, Savvas ; Safacas, A.

Author_Institution

Dept. of Comput. & Electr. Eng., Univ. of Patras, Patras, Greece

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

1825

Lastpage

1830

Abstract

In this paper, the impact of Hall sensors misalignment on BLDC motor operational characteristics, i.e. DC bus current, electromagnetic torque and system efficiency, is investigated. A method for identifying and evaluating Hall sensors misplacement is described. The BLDC motor drive system is simulated in Matlab/Simulink environment software with ideally and misplaced positioned Hall sensors. Typical scenarios regarding Hall sensors angular misplacement have been simulated for the most commonly mounting configurations. The electromagnetic torque spectrum as an indicator for mechanical vibrations and noise generation has been examined. Simulations results indicate that system efficiency is decisively decreased as angular misplacement becomes greater than 30^o electrical degrees.

Keywords

Hall effect devices; brushless DC motors; torque; BLDC motor drive operation; DC bus current; Hall sensors misplacement; Matlab environment software; Simulink environment software; angular misplacement; electromagnetic torque spectrum; mechanical vibrations; noise generation; DC motors; Electromagnetics; Magnetic sensors; Mechanical sensors; Permanent magnet motors; Torque; Brushless DC motors; Hall sensors misplacement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960431

Filename

6960431