A Permanent Magnet Synchronous Machine with Interior Halbach Arrays
A Permanent Magnet Synchronous Machine with Interior Halbach Arrays
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DOI：
10.23919/ipec-himeji2022-ecce53331.2022.9807194
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发表时间：
2022-05
期刊：
影响因子：
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通讯作者：
Yuting Gao;T. Kosaka;Yang Liu;You Zhou
中科院分区：
文献类型：
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作者：
Yuting Gao;T. Kosaka;Yang Liu;You Zhou
具有Halbach阵列的常规永磁（PM）同步电机大多是表面安装的，其仅适用于低速应用。在本文中，提出了一种永磁同步电机与内部Halbach阵列的低速和高速操作。其定子铁心和绕组与普通永磁电机相同，但转子永磁结构不同，即一个永磁极由两个嵌入式永磁体和一个夹在中间的轮辐式永磁体组成。独特的转子配置提供了更高的扭矩密度，效率，过载和弱磁能力比普通的PM机器。此外，为了进一步降低所提出的永磁电机与内部Halbach阵列的转矩涟漪，转子开槽被引入。
Regular permanent magnet (PM) synchronous machines with Halbach arrays are mostly surface-mounted, which are only suitable for low-speed applications. In this paper, a PM synchronous machine with interior Halbach arrays is proposed for both low-speed and high-speed operations. The stator core and winding are the same with regular PM machines, while the key difference is the rotor PM structure, i.e. one PM pole is composed of two embedded PMs and a sandwiched spoke PM. The unique rotor configuration offers higher torque density, efficiency, overload and flux weakening capabilities than regular PM machines. Besides, in order to further reduce the torque ripple of the proposed PM machine with interior Halbach arrays, the rotor notching is introduced.