PWM SWITCHING STRATEGY FOR TORQUE RIPPLE MINIMIZATION IN BLDC MOTOR

被引：44

作者：

Salah, Wael A. ^{[1
]}

Ishak, Dahaman ^{[1
]}

Hammadi, Khaleel J. ^{[1
]}

机构：

[1] Univ Sains Malaysia, Sch Elect & Elect Engn, George Town 14300, Malaysia

来源：

JOURNAL OF ELECTRICAL ENGINEERING-ELEKTROTECHNICKY CASOPIS | 2011年 / 62卷 / 03期

关键词：

permanent magnet; brushless DC; modified PWM; sensored control; torque ripple; DRIVES;

D O I：

10.2478/v10187-011-0023-1

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

This paper describes a new PWM switching strategy to minimize the torque ripples in BLDC motor which is based on sensored rotor position control. The scheme has been implemented using a PIC microcontroller to generate a modified Pulse Width Modulation (PWM) signals for driving power inverter bridge. The modified MAIM signals are successfully applied to the next up-coming phase current such that its current rise is slightly delayed during the commutation instant. Experimental results show that the current waveforms of the modified PWM are smoother than that in conventional PWM technique. Hence, the output torque exhibits lower ripple contents.

引用

页码：141 / 146

页数：6

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