Application and Study of Optimal Control Theory in Control System of Active Magnetic Bearings
最优控制理论在磁轴承控制系统中的应用研究（英文）

A state equation for a radical 4-degree-of-freedom active magnetic bearing is built, and the approach on how to use linear quadratic method of optimal control theory to design a centralized and decentralized parameters control system is introduced. Simulations have conducted within MATLAB. The results of simulations and experiments show that decentralized controllers designed from optimal state feedback theory at the speed of 60000rpm meet the requirement of the active magnetic bearing system.