Research on the Characteristics of Open winding Brushless DC Motor

Brushless DC motor (BLDCM) is widely used in electrical drives application. But the neuter port in Y connected BLDCM windings could leads to torque ripple and low reliability. Open winding BLDCM system has no neuter port of phase windings whose voltages and currents could be controlled separately. T...

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Bibliographic Details
Published inInternational Conference on Electrical Machines and Systems (Online) pp. 1 - 6
Main Authors Qi, Huang, Ling, Luo, Li-kun, Xue, Yang, Tang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2019
Subjects
Brushless DC Motor
Brushless DC motors
conduction model
Mathematical model
Matlab
open winding
Power supplies
Torque
Torque measurement
torque-speed characteristic
Windings
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ISSN2642-5513
DOI10.1109/ICEMS.2019.8922069

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Summary:Brushless DC motor (BLDCM) is widely used in electrical drives application. But the neuter port in Y connected BLDCM windings could leads to torque ripple and low reliability. Open winding BLDCM system has no neuter port of phase windings whose voltages and currents could be controlled separately. The topology and eight kinds of conduction models of open winding BLDCM system are introduced. The electromagnetic foundation of open winding BLDCM is analyzed. Then a mathematical model of the open winding BLDC drive system is simulated by MATLAB SIMULINK. A prototype of open winding BLDCM and test system is designed. Experimental results show that, compared to Y connected BLDCM, open winding BLDCM has a wider speed regulation range and less commutation torque ripple, the torque-speed characteristic of them are similar.
ISSN:2642-5513
DOI:10.1109/ICEMS.2019.8922069