• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Pulp and Paper Industry Technical Conference, 2009. PPIC '09 >Active stator winding thermal protection for AC motors
【24h】

Active stator winding thermal protection for AC motors

机译：交流电动机的有源定子绕组热保护

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

AC motors are the main workhorses in process industries. Their malfunction may not only lead to repair or replacement of the motor, but also cause significant financial losses due to unexpected process downtime. Reliable thermal protection of ac motors is crucial for reducing the motor failure rate and prolonging a motor's lifetime. In this paper, conventional thermal protection devices and state-of-the-art thermal protection techniques are reviewed with their advantages and limitations discussed. Since 2001, the research team at the author's company and at the Georgia Institute of Technology has been cooperatively developing a series of active motor thermal protection methods, as a low-cost alternative approach to the traditional passive and sensor-based methods. These active thermal protection methods monitor the average stator temperature via stator resistance estimation based on the dc equivalent model of ac motors, using only motor stator voltage and current measurements. In this paper, an overview of the active thermal protection techniques for line-started, soft-starter-connected and inverter-fed ac motors is presented, with their advantages and drawbacks discussed. The active thermal protection techniques are capable of providing accurate, and non-invasive thermal protection of ac motors.
机译：交流电动机是过程工业的主要动力。它们的故障不仅可能导致维修或更换电动机，而且还会由于意外的过程停机而造成重大的财务损失。交流电动机的可靠热保护对于降低电动机故障率和延长电动机寿命至关重要。在本文中，对常规热保护设备和最新的热保护技术进行了综述，并讨论了它们的优点和局限性。自2001年以来，作者公司和佐治亚理工学院的研究团队一直在合作开发一系列有源电动机热保护方法，以作为传统无源和基于传感器的方法的低成本替代方法。这些主动热保护方法仅基于电动机定子电压和电流测量值，即可基于交流电动机的直流等效模型，通过定子电阻估算来监视平均定子温度。本文概述了线路启动，软启动器连接和逆变器供电的交流电动机的有源热保护技术，并讨论了它们的优缺点。有源热保护技术能够为交流电动机提供准确且无创的热保护。

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