Increasing the saliency ratio of fractional slot concentrated winding interior permanent magnet synchronous motors
Increasing the saliency ratio of fractional slot concentrated winding interior permanent magnet synchronous motors
复制标题
DOI：
10.1049/iet-epa.2014.0336
复制
发表时间：
2015-07
影响因子：
1.7
通讯作者：
L. Yue;P. Yulong;Yu Yanjun;Shi Yanwen;Chai Feng
中科院分区：
文献类型：
--
作者：
L. Yue;P. Yulong;Yu Yanjun;Shi Yanwen;Chai Feng
在永磁同步电机（PMSM）伺服系统中，凸极比是无传感器控制和弱磁控制的重要因素。与分布式绕组的内置永磁同步电机（IPMSM）相比，集中绕组的IPMSM在伺服系统应用中更受欢迎。然而，目前分数槽集中绕组（FSCW）IPMSM的凸极比较低且难以提高，并且没有太多文献研究如何提高该比率。本文确定了 FSCW IPMSM 的 d 轴和 q 轴电感分量，引入了机械相区的新概念，并通过深入的理论分析和仿真研究了影响 FSCW PMSM 凸极比的关键参数。提出了提高FSCW IPMSM凸极比的设计原则，并获得了10极12槽电机的最大凸极比。在此理论的基础上，设计了一种具有更高凸极比的新型转子结构。测量 d 轴和 q 轴电感的新实验方法以构建三个实验原型来验证理论和仿真结果来结束本文。
In permanent magnet synchronous motor (PMSM) servo systems, the saliency ratio is an important factor in sensorless control and flux-weakening control. Compared with the interior PMSM (IPMSM) with distributed windings, the IPMSM with concentrated windings gains more popularity in servo system applications. However, the saliency ratio of current fractional slot concentrated windings (FSCWs) IPMSM is low and hard to increase, without much literature investigating how to improve the ratio. In this paper, the components of d - and q -axes inductances of FSCW IPMSM are determined, a novel concept named mechanical phase region is introduced and the key parameters influencing the saliency ratio of FSCW PMSMs have been investigated through thorough theoretical analysis and simulation. The design principles on increasing the saliency ratio of FSCW IPMSMs are proposed and the maximum saliency ratio of a 10 poles 12 slots motor is obtained. On the basis of the theory, a novel rotor structure with higher saliency ratio is designed. A new experimental method of measuring d - and q -axes inductances closes this paper with three experimental prototypes built to verify the theory and simulation results.