|
|
中国电机工程学报 2007, 27(12) 59-64 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
|
|
|
|
本期目录 |
下期目录 |
过刊浏览 |
高级检索
[打印本页]
[关闭] |
|
| 电机电工 |
|
|
无轴承永磁同步电机转子偏心位移的直接控制 |
|
|
张少如 吴爱国 李同华 |
|
|
天津大学电气与自动化工程学院 天津大学电气与自动化工程学院 天津大学电气与自动化工程学院 |
|
|
摘要：
无轴承电机运行时由于负载扰动使其转子产生的径向偏心影响了其稳定悬浮性能，因此如何采取直接有效的方法控制转子偏心位移、使转子稳定悬浮成为无轴承电机研究的重点。文中对无轴承电机中的麦克斯韦力进行详细研究后，根据径向偏心位移和径向悬浮力之间的关系，基于可控径向悬浮力产生的机理，采用转子磁场定向，对转子偏心位移的控制提出了一种全新的控制方法：无轴承永磁同步电机转子偏心位移的直接控制，并设计了相应的控制系统。仿真结果表明，该方法有效地提高了无轴承电机稳定悬浮运行的动、静态性能，实现了对转子偏心位移的直接控制。
|
|
|
关键词：
无轴承永磁同步电机
麦克斯韦力
转子偏心位移
径向悬浮力
直接位移控制
转子磁场定向
|
|
|
Direct Control for Rotor Eccentric Displacement of Bearingless Permanent Magnet-type Synchronous Motors |
|
|
|
|
|
|
|
|
Abstract:
Load disturbance leads to rotor eccentricity of bearingless motors in practical operation, which will influence the control performance of stable suspension. It is the focus in studies of bearingless motors to levitate the rotor stably by directly and effectively controlling rotor eccentric displacement. Firstly, Maxwell forces of bearingless motors and the relationship between eccentric displacement and radial levitation force were analyzed. Then, based on the principle of controllable radial levitation force, a new approach to control rotor eccentric displacement was proposed. This approach directly controls rotor eccentric displacement of bearingless permanent magnet-type synchronous motors by using the control of rotor flux orientation. By applying this approach, a control system was also designed. The simulation results show that this approach is effective in improving the static and dynamic performance of stable suspension of bearingless motors, and this approach realizes direct control for rotor eccentric displacement.
|
|
|
Keywords:
bearingless permanent magnet-type synch- ronous motor
Maxwell force
rotor eccentric displacement
radial levitation force
direct displacement control
rotor flux orientation
|
|
|
收稿日期 2006-03-13 修回日期 1900-01-01 网络版发布日期 |
|
|
DOI: |
|
|
基金项目:
|
|
|
通讯作者: 张少如 |
|
|
作者简介: |
|
作者Email: shaoruzhang@hotmail.com |
|
|
| 参考文献： |
|
| 本刊中的类似文章 |
| 1．孙玉坤 费德成 朱熀秋.基于a阶逆系统五自由度无轴承永磁电机解耦控制[J]. 中国电机工程学报, 2006,26(1): 120-126 |
|
| Copyright by 中国电机工程学报 |
