磁悬浮轴承悬浮能力及控制系统分析研究

Analysis on the magnetic bearing suspension capacity and its control system

磁悬浮轴承以无摩擦、高转速、高精度、无需润滑等优点,成为高速或超高速回转机构中轴承发展的方向之一。本文依据电磁感应理论和自动控制原理,自行设计和研制出的五维控制磁悬浮轴承装置及其控制系统,在实验室成功进行了多次长时间悬浮旋转。并在其静态磁悬浮特性和动态磁悬浮特性试验的基础上,重点对磁悬浮轴承的悬浮能力和闭环控制系统进行了分析研究,结果表明,该磁悬浮轴承及其闭环控制系统能成功把9kg重的轴悬浮在空中高速旋转,为实际应用提供了理论基础和实践依据。

Magnetic Bearing has the advantages of no friction, high - speed, high precision, without lubrication, it becomes one of the bearing directions of the development of high - speed or ultra - high -speed rotary mechanism. According to the electromagnetic induction theory and automatic control theory, this paper designed and developed a five - dimensional control of magnetic bearing device and its control system, and successfully conducted in the laboratory many times as a long time suspended rotating. And on the basis of the static magnetic characteristics and dynamic magnetic performance test, the magnetic bearings suspended and closed -loop control system were analyzed, the results show that the magnetic bearings and its closed - loop control system can successfully 9kg weight shaft suspended in the air as high - speed rotation, the results provide theoretical and practical basis for its practical application.