...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Transactions on Energy Conversion >Analytical Prediction of Eddy-Current Loss in Modular Tubular Permanent-Magnet Machines
【24h】

Analytical Prediction of Eddy-Current Loss in Modular Tubular Permanent-Magnet Machines

机译：模块化管状永磁电机涡流损耗的分析预测

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The paper describes an analytical technique for predicting the eddy-current loss in the moving armature of a tubular permanent magnet machine. This loss component is usually neglected in conventional tubular permanent magnet machines since high-order time harmonics in the stator current waveform and space harmonics in the winding magnetomotive force (MMF) distribution are generally considered to be insignificant. However, a relatively new topology of tubular permanent magnet machine, sometimes referred to as "modular," has emerged in which the fundamental component of the stator MMF has fewer poles than that of the permanent-magnet armature, the thrust force being developed by the interaction between a higher order MMF harmonic and the permanent magnet field. Thus, the presence of lower and higher order space harmonics in the winding MMF distribution of a modular machine may gives rise to a significant eddy-current loss in the moving-magnet armature. An analytical model is developed to predict the eddy currents which are induced in the magnets, as well as in any electrically conducting supporting tube which may be employed, and to quantify the effectiveness of axially segmenting the magnets in reducing the eddy-current loss. The validity of the developed model, which is also applicable to conventional designs of tubular permanent-magnet machine, is verified by time-stepped transient finite-element analysis (FEA).
机译：本文介绍了一种预测管状永磁电机运动电枢中涡流损耗的分析技术。由于通常认为定子电流波形中的高阶时间谐波和绕组磁通势（MMF）分布中的空间谐波并不重要，因此在传统的管状永磁电机中通常忽略了这种损耗分量。但是，出现了一种相对较新的管状永磁电机拓扑结构，有时称为“模块化”，其中定子MMF的基本部件的极数少于永磁电枢的极数，而推力是由永磁体产生的。高阶MMF谐波与永磁场之间的相互作用。因此，模块化电机的绕组MMF分布中存在低阶和高阶空间谐波会在动电枢中产生明显的涡流损耗。开发了一种分析模型，以预测在磁体以及可能使用的任何导电支撑管中感应出的涡流，并量化轴向分段磁体以减小涡流损耗的有效性。通过时间步长瞬态有限元分析（FEA）验证了所开发模型的有效性，该模型也适用于管状永磁电机的常规设计。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号