飞轮电池磁轴承系统结构及控制

Structure and control design of magnetic bearing system for flywheel battery

文章提出了一种由径向永磁轴承与推力电磁轴承组成的单轴主动控制的飞轮电池磁轴承系统结构,径向永磁轴承提供径向恢复力和轴向悬浮力,推力电磁轴承提供轴向恢复力,在磁轴承系统数学模型的基础上,采用状态反馈控制的设计方法建立闭环控制系统,并进行计算机仿真。仿真结果表明,闭环系统在较短时间内达到稳定,具有良好的动态特性。

One singleaxis actively controlled structure of hybrid magnetic bearing system, which is made up of two radial permanentmagnet bearings and one axial propulsive electromagnetic bearing, is presented for flywheel battery. The permanentmagnet bearings provide radial restoring force and axial suspension force,while the propulsive electromagnetic bearing provides axial restoring force. The mathematical model of the magnetic bearing system is established,and the design method of state feedback control is adopted to build a closedloop control system. The control process of the hybrid magnetic bearing system is simulated. The simulation results show that the closedloop control system can achieve stable in a short time and the system has good dynamic characteristics.