逆变器驱动式磁轴承关键技术研究发展综述

Research and Development Overview of Key Technologies on Inverter Driven Magnetic Bearings

逆变器驱动式磁轴承除了拥有传统磁轴承无摩擦磨损、无需润滑和密封、高速度、高精度和寿命长等优点外,还具有体积小、功耗低、成本低等特点,成为磁轴承1个重要研究方向。详细阐述逆变器驱动式磁轴承的结构及运行原理;描述目前逆变器驱动式磁轴承的拓扑结构;对其关键技术进行总结分析,包括结构优化、数学建模、控制技术、无传感器技术以及转子振动补偿方面;根据其关键技术探讨逆变器驱动式磁轴承未来的发展趋势。

The inverter driven magnetic bearings not only have the advantages of no friction wear,no lubrication and sealing,high speed,high precision and long life,but also have the characteristics of small volume,low power consumption,low cost and etc.Therefore,they have become an important research direction of magnetic bearing.The structure and operation principle of the inverter driven magnetic bearings are described in detail.The current topologies of inverter driven magnetic bearings are described.The key technologies are summarized and analyzed,including structural optimization,mathematical modeling,control technology,sensorless technology and rotor vibration compensation.The future development trends of the inverter driven magnetic bearings are discussed according to their key technologies.