Overview of novel magnetically geared machines with partitioned stators
Overview of novel magnetically geared machines with partitioned stators
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DOI：
10.1049/iet-epa.2017.0680
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发表时间：
2018-04
影响因子：
1.7
通讯作者：
Z. Zhu
中科院分区：
文献类型：
--
作者：
Z. Zhu
本研究概述了最近发展的一类新的磁齿轮电机拓扑结构，即分区定子（PS）机。它们是从磁齿轮和磁齿轮电机，以及定子永磁（PM）电机（开关磁通，磁通反向和双凸极PM），绕线磁场或混合PM和磁场绕组电机发展而来的。基于操作原理，即磁齿轮效应/气隙磁场调制和通过凸形转子磁极的磁通切换，开发了各种PS机拓扑结构。所有这些都具有两个定子，两个气隙和一个分段铁磁转子的功能，与磁齿轮的调制转子相同。揭示了它们之间的内在联系，并对它们的电磁性能进行了比较。讨论了永磁电机和绕线场永磁电机，以及混合励磁的PS-PM电机和游标电机。结果表明，这几种永磁同步电机的转矩产生原理是相同的，不同之处主要在于永磁结构和两个定子的相对位置。与单定子电机相比，所有PS电机的单位铜损转矩密度更高。PS开关磁通PM电机可以产生最高的单位铜损转矩密度。
This study overviews recent development of a new class of magnetically geared machine topologies, i.e. partitioned stator (PS) machines. They are developed from magnetic gears and magnetically geared machines, as well as stator permanent magnet (PM) machines (switched flux, flux reversal, and doubly saliency PM), wound field, or hybrid PM and field winding machines. Based on the operating principle, i.e. magnetic gearing effect/air-gap field modulation and flux switching by the salient rotor iron poles, various PS machine topologies are developed. All have features of two stators, two air-gaps, and one segmented ferromagnetic rotor identical to a magnetic gear's modulating rotor. Their inherent relationships are revealed, while their electromagnetic performance is compared. Both PM and wound field PS machines are discussed, together with hybrid excited PS-PM machines and Vernier machines. It shows that all of these PS machines share the same torque production principle and the differences are mainly in PM configurations and relative positions of two stators. All PS machines have higher torque density per copper loss compared with their counterparts of single-stator machines. PS switched flux PM machines can produce the highest torque density per copper loss.