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Study of Commutation Torque Ripple Reduction ofBLDCM DTC Based on Zero Voltage Vectors(PDF)

南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2017年04期
Page:
25-
Research Field:
电气与电子工程
Publishing date:

Info

Title:
Study of Commutation Torque Ripple Reduction ofBLDCM DTC Based on Zero Voltage Vectors
Author(s):
Guo Yong; Yang Jianfei; Qiu Xin; Cao Wei
Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing,Nanjing Normal University,Nanjing 210042,China
Keywords:
brushless DC motor; direct torque control; zero voltage vectors; commutation torque ripple
PACS:
TM351
DOI:
10.3969/j.issn.1672-1292.2017.04.005
Abstract:
Brushless DC motors have the problem of high torque ripple in direct torque control system because of the non-sinusoidal back EMF and two-phase conduction mode. Aiming at reducing the torque ripple in DTC system of BLDCM,the paper proposes an optimized voltage vector selection table. The commutation torque ripple of the different new zero voltage vectors are analyzed and compared by formula deduction. The result shows the commutation torque ripple is effectively suppressed through the combination between upper and lower zero voltage vectors. The simulation and experiment verifies the theoretical analysis.

References:

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Last Update: 2017-12-30