Unipolar sinusoidal excited switched reluctance motor control based on voltage space vector
Unipolar sinusoidal excited switched reluctance motor control based on voltage space vector
复制标题
基于电压空间矢量的单极正弦励磁开关磁阻电机控制
DOI：
10.1049/iet-epa.2018.5636
复制
发表时间：
2019
影响因子：
1.7
通讯作者：
Kui Li
中科院分区：
文献类型：
--
作者：
Kuai Songyan;He Zhang;Xinxiang Xia;Kui Li
为了提高开关磁阻电机(SRM)的运行性能、减小转矩脉动，提出了一种基于电压空间矢量的SRM电流控制方法。其中定子绕组由带有直流偏置的正弦电流励磁，实现单极电流励磁。在该控制系统中，单独使用零矢量控制零序电流，并考虑耦合情况，选择非零电压空间矢量控制dq轴电流。通过将三次谐波电流注入直流偏置电流来抵消磁阻扭矩分量，并通过选择适当的电流比来最小化铜损。经验证明，新方法可以有效控制SRM电流。通过三次谐波电流注入可以减少转矩脉动，但效率也会降低。与传统控制方法相比，该方法简单、易于实现，能够有效抑制转矩脉动。
In order to improve the operation performance and decrease the torque ripple of switched reluctance motor (SRM), a new current control method for SRM based on voltage space vector was proposed. In which the stator windings are excited by sinusoidal current with a DC offset to realise the unipolar current excitation. In this control system, zero vectors were used to control zero-sequence current alone and non-zero voltage space vector was selected to control d–q-axis current considering coupling. The reluctance torque component was offset by injecting third harmonic current into the DC bias current, and copper loss was minimised by selecting appropriate current ratio. Experiences verified that the new method can effectively control SRM current. The torque ripple can be reduced with third times harmonic current injection, but the efficiency is also decreased. Compared with the traditional control method, the proposed method is simple, easy to implement, and can effectively suppress torque ripple.