• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2013 8th International Conference-Workshop Compatibility and Power Electronics >Influence of broken rotor bars on magnetic quantities in induction machine
【24h】

Influence of broken rotor bars on magnetic quantities in induction machine

机译：转子断条对感应电机中磁通量的影响

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

Broken rotor bars (BRB) is a typical type of failure in induction machines (IM), especially in drives where frequent transient operation is common. The BRB occurrence disturbs the air gap flux distribution giving rise to a sequence of interrelated phenomena. In this paper an analytical treatment of the electromagnetic quantities following fault development is presented. By means of superposition principle faulty rotor is modeled as a sum of two symmetrical rotors each of them producing their own MMF. However, the nature of two MMFs is quite different. The first rotor produces rotational MMF, whereas the second can only establish pulsating MMF. The latter can be modeled as a sum of two opposing rotational MMFs with half the original amplitude. Once re-combined with first rotor, the joint MMF can be described as a sum of direct MMF and oscillating MMF with typical fault frequency (1–2s)f1. The oscillating MMF induces stator current component at the same frequency, which is known to be the basic indicator of BRBs in IM.
机译：转子棒（BRB）损坏是感应电机（IM）中的典型故障类型，尤其是在频繁进行瞬态操作的驱动器中。 BRB的出现扰乱了气隙通量分布，从而导致了一系列相互关联的现象。本文提出了故障发展后电磁量的分析处理。借助叠加原理，将故障转子建模为两个对称转子的总和，每个转子各自产生自己的MMF。但是，两个MMF的性质是完全不同的。第一个转子产生旋转MMF，而第二个转子只能建立脉动MMF。后者可以建模为两个相对的旋转MMF的总和，原始振幅的一半。一旦与第一个转子重新组合，则联合MMF可以描述为直接MMF与典型故障频率（1-2s）f 1 的振荡MMF之和。振荡的MMF会以相同的频率感应定子电流分量，这是IM中BRB的基本指标。

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