摘  要：转矩脉动是无刷直流电动机的固有缺陷，它限制了其在高精度系统中的应用。该文详细论述了转矩脉动产生的各种原因，并给出了相应的有效的抑制方法。
关键词：转矩脉动；无刷直流电机；抑制方法

Abstract: One of connatural drawbacks of brushless DC motor is torque ripple,which confines its applications in high definition systems.It discussed the causes of torque ripple in detail,and effective relevant suppression methods were given in this article.
Key Words: Torque Ripple;Brushless DC Motor;Suppression method