用户名 密 码 登 录 忘记密码 免费注册

网站会员中心 | 设为首页 | 加入收藏

 您好，欢迎光临中国轴承行业网         退出登陆

会员中心 | 设为首页 | 加入收藏

协会

统计

国外文献 > 1.轴承 > 8. 系统与应用 > 电机与旋转机械

关键词搜索：

标 题： A Machine Integrated Rogowski Coil for Bearing Current Measurement
用于轴承电流测量的机载罗戈夫斯基线圈
作 者： Stefan Quabeck
Lukas Braun
Niklas Fritz
Severin Klever
Rik W. De Doncker
关键词： Bearing current  [轴承电流]
Rogowski coil  [ 罗戈夫斯基线圈]
Electrical machine  [ 电气机械]
出版年： 2021
会议名： 13th IEEE International Symposium on Diagnostics for Electrical Machines, Power Electronics and Drives (SDEMPED 2021)
第13届IEEE国际电机、电力电子与驱动诊断研讨会（SDEMPED 2021）
届 次： 13th
摘 要： Inverter driven machines are a vital part of electrical traction drives. They are subject to high-frequency parasitic currents, caused by the high-frequency components of the pulse width modulated (PWM) voltage. These currents can flow through the bearings of the machine and cause severe damage. They are usually measured by introducing a gap into the parasitic current path, bridging the gap and measuring the current through the bridge. This method and similar methods from the literature change the current path in the machine and thereby influence the measurement results. Therefore, in this work, a rogowski coil is developed, which is integrated into the machine and measures the current through the shaft of the machine. By placing such rogowski coils on the shaft inside and outside the machine and substractign the measured currents, the bearing current on either end of the machine can be measured without interfering in the current path. This work outlines how to design a Rogowski coil specifically for the bearing current measurements using a differential structure to achieve high common mode rejection.

变频驱动设备是电气牵引传动系统中的关键部件。由于脉宽调制（PWM）电压的高频分量，这些设备会受到高频寄生电流的影响。这些电流可能流经机器的轴承，造成严重损坏。通常通过在寄生电流路径中引入间隙、闭合该间隙并测量桥接电路中的电流来检测此类电流。然而，这种方法以及文献中类似的方法会改变机器内部的电流路径，从而影响测量结果。因此，在本研究中，开发了一种集成于机器内部的罗果斯线圈，用于测量轴上的电流。通过在机器内外轴上安装此类罗果斯线圈，并对测得的电流进行差值计算，即可在不干扰电流路径的情况下测量机器两端的轴承电流。本文介绍了如何设计一种专用于轴承电流测量的罗果斯线圈，采用差分结构以实现高共模抑制能力。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

VIP网员

联系我们 | 登录注册 | 会员管理 | 网员服务 | 服务信息 | 广告服务 | 高薪聘请 | 法律声明 | 关于我们

京公网安备 11010202009788    京ICP备2021015424号