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国外文献 > 1.轴承 > 8. 系统与应用 > 电机与旋转机械


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标 题: A Complete Excitation-Shaft-Bearing Model to Overcome The Shaft Induced Voltage And Bearing Current
一种完整的轴激励-轴承模型,用于克服轴感应电压和轴承电流
作 者: Reza Kazerai Golkhandan
Mohammad Tavakoli Bina
Masoud Aliakbar Golkar
Mohsen Jokar
关键词: Bearing current  [轴承电流]
Breakdown voltage  [ 击穿电压]
Passive filter  [ 无源滤波器]
Shaft voltage  [ 轴电压]
Static excitation system  [ 静态励磁系统]
出版年: 2011
会议名: 2nd Power Electronic, Drive Systems, Technologies Conference (PEDSTC 2011)
第二届电力电子、驱动系统与技术会议(PEDSTC 2011)
届 次: 2nd
摘 要: This paper proposes a complete distributed model for investigating the induced shaft voltage and bearing current in turbo generators due to the interaction with the static excitation systems. This undesirable voltage affects the insulations gradually, lowering the life expectancy of the whole system. If the shaft voltage exceeds the dielectric breakdown voltage level of the lubricating grease film in journal bearings, an electrical discharge current flows through the bearings. In order to inspect the shaft voltage, a passive filter is proposed to overcome the stated issue. Both the proposed model and the passive filtering technique are simulated with SIMULINK, and discussed in detail to confirm the presence of the bearing current and shaft voltage.

本文提出了一种完整的分布式模型,用于研究涡轮发电机在与静态励磁系统相互作用时产生的轴电压和轴承电流。这种不良电压会逐渐影响绝缘材料,从而缩短整个系统的使用寿命。当轴电压超过滚柱轴承中润滑脂膜的介电击穿电压时,将产生放电电流流经轴承。为检测轴电压,本文提出一种被动滤波技术以解决上述问题。所提出的模型与被动滤波方法均通过SIMULINK进行仿真,并进行了详细讨论,以验证轴承电流和轴电压的存在。
中文内容为网络AI翻译,专业术语未必准确,仅供参考。

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