一种动态抑制无刷直流电机换相转矩脉动方法

doi:10.16182/j.issn1004731x.joss.201802022

摘要/Abstract

摘要： 提出了一种基于准Z源网络的动态抑制换相转矩脉动的方法,可以在无刷直流电机(BLDCM)转速调整过程中动态抑制转矩脉动。考虑电机绕组相电阻,建立了系统的数学模型,通过前置的准Z源网络,当电机转速及负载发生改变时,实时在线计算并调节换相电压U_up和换相时间t_up以达到动态抑制转矩脉动的效果。在MATLAB/Simulink环境下完成了基于准Z源网络的动态抑制无刷直流电机换相转矩脉动仿真模型,通过实验平台验证了该方法的可行性。

关键词: 无刷直流电机, 换相转矩脉动, 准Z源网络, 动态抑制

Abstract: A dynamic suppression method for commutation torque ripple by employing a quasi-Z-source network was proposed, which reduced the torque ripple dynamically during the speed adjustment process in brushless DC motors (BLDCM). The phase resistance was taken into consideration and the mathematics model for the system was established. To suppress the commutation torque ripples timely and effectively, U_up and t_up needed to be adjusted dynamically through the quasi-Z-source network while the speed and load changed. A simulation model to dynamically suppress the commutation torque ripple in BLDCM based on quasi-Z-source network was established by MATLAB/Simulink, and the feasibility was validated by experiments.

Key words: Brushless DC motor, commutation torque ripple, quasi-Z-source network, dynamic suppression

中图分类号:

TM315

夏鲲, 谭媛, 董斌, 卢晶. 一种动态抑制无刷直流电机换相转矩脉动方法[J]. 系统仿真学报, 2018, 30(2): 543-550.

Xia Kun, Tan Yuan, Dong Bin, Lu Jing. Dynamic Suppression Method for Commutation Torque Ripple of Brushless DC Motors[J]. Journal of System Simulation, 2018, 30(2): 543-550.

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