Development of a double-sided consequent pole linear vernier hybrid permanent-magnet machine for wave energy converters
Development of a double-sided consequent pole linear vernier hybrid permanent-magnet machine for wave energy converters
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DOI：
10.1109/iemdc.2017.8002157
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发表时间：
2017-05
期刊：
影响因子：
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通讯作者：
A. Almoraya;N. Baker;K. J. Smith;M. Raihan
中科院分区：
文献类型：
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作者：
A. Almoraya;N. Baker;K. J. Smith;M. Raihan
通过使用直接驱动线性发电机可以简化波浪能转换，从而提高可靠性。在过去的几十年里，人们提出了许多直接驱动线性发电机的拓扑结构，例如线性游标混合永磁（LVHPM）电机。然而，这种机器的成本是由永磁（PM）材料的数量决定的。本文提出了一种用于波浪能转换器的具有交替极和集中绕组的线性游标混合永磁电机，其需要更少的磁体材料来实现可比较的性能。该设计的关键是模块化定子，可以消除由交替极引起的不平衡磁路。根据有限元分析 (FEA)，与基线 LVHPM 机器相比，本机器能够提供更高的推力、更高的反电动势和更低的齿槽力以及力脉动。
Wave energy conversion can be simplified by using direct drive linear generators which may improve reliability. Numerous topologies of direct drive linear generators have been proposed in the last few decades such as the linear vernier hybrid permanent magnet (LVHPM) machine. However, the cost of this kind of machine is driven by the quantity of permanent magnet (PM) material. This paper proposes a linear vernier hybrid permanent magnet machine with consequent pole and concentrated windings for wave energy converters, which requires less magnet material for comparable performance. The key of the proposed design is the modular stator where the unbalanced magnetic circuit caused by consequent pole can be eliminated. Based on finite element analyses (FEA) the present machine is capable of higher thrust force, higher back EMF and lower cogging force as well as force ripple compared to that of a baseline LVHPM machine.