主动磁悬浮推力轴承的状态反馈线性化控制

研究了无预磁化偏流的单边方式主动磁悬浮推力轴承的控制，针对系统的非线性模型，应用状态反馈线性化方法，构造出非线性控制器，使得系统在大范围内精确线性化，然后应用线性系统理论对线性化学系统进行综合。研究表明，系统具有良好的静、动态性能。由于这种单边方式推力轴承的电磁力线圈不需要预磁化偏流，与常规的差动式有预磁化偏流结构的系统相比，系统的功耗大为降低，效率显著提高，而且系统的温升及阻尼均大为减少。

Input-Output Linearizing Control for Axial Magnetic Bearings

A nonlinear model is the presented for a rotor supported by an axial active magnetic bearing without premagnetization bias current. A nonlinear controller based on dynamic feedback is designed to linearize and improve the axial system. Simulations are employed to verify the presented scheme. Energy consumption in the axial magnetic bearing with unilateral operate model is reduced and lower than that of the difference configuration with premagnetization bias current.