Low‐torque ripple control of SRM based on current vector
Low‐torque ripple control of SRM based on current vector
复制标题
基于电流矢量的SRM低转矩脉动控制
DOI：
10.1049/iet-epa.2019.0548
复制
发表时间：
2020
影响因子：
1.7
通讯作者：
Kun Hu
中科院分区：
文献类型：
--
作者：
Kuai Songyan;Xinxiang Xia;He Zhang;Kun Hu
为了降低开关磁阻电机（SRM）的转矩涟漪，提出了一种基于电流矢量的低转矩涟漪控制方法。其中，我
D
= 0控制策略。那我
Q
被分解为不同位置的两相电流的矢量和。关于T的傅里叶级数模型
e
我
Q
该模型满足磁饱和条件。根据所建立的傅立叶级数模型，
Q
基于恒定的参考转矩获得。本文建立了传统单极正弦励磁控制下SRM的转矩模型，
Q
单极励磁控制方法和变量I
Q
单极励磁控制方法进行了分析。最后，搭建了基于TMS320F2812的开关磁阻电机控制系统实验平台。实验结果表明，该变量
Q
基于电流矢量分解的单极励磁方法可以有效地减小SRM的转矩涟漪。
To reduce torque ripple of switched reluctance motor (SRM), a low-torque ripple control method based on current vector is proposed in this study. In which, i
d
= 0 control strategy is adopted. Then, i
q
is decomposed into the vector sum of two-phase currents in different positions. A Fourier series model about T
e
and i
q
is established and this model satisfies the magnetic saturation condition. According to the established Fourier series model, the change rule of i
q
based on constant reference torque is obtained. In this study, torque models of SRM under traditional unipolar sinusoidal excitation control method, constant i
q
unipolar excitation control method and variable i
q
unipolar excitation control method are analysed. Finally, experimental platform of SRM control system based on TMS320F2812 is built. Experimental results show that the variable i
q
unipolar excitation method based on current vector decomposition can effectively reduce the torque ripple of SRM.