Decoupling Control of AC-DC-3DOF-HMB Based on Inverse System Method
The AC-DC 3 degrees of freedom hybrid magnetic bearing (AC-DC-3DOF-HMB) is a multivariable, nonlinear and strong coupled system. In the paper, a decoupling control approach based on inverse system method is proposed, which is used to decouple this system. Firstly, the configuration of the AC-DC-3DOF-HMB is introduced briefly, the mathematical equations of radial and axial suspension forces are set up. Secondly, the state equations of the AC-DC-3DOF-HMB are set up, the analytical inverse system of the AC-DC-3DOF-HMB is obtained by analyzing the reversibility of the mathematical model, and then inverse system and original system are in series to constitute pseudo linear systems. Finally, controllers of the pseudo linear systems are designed by using linear system theory, and the whole control system is simulated by using Matlab software. The simulation results show that this control strategy can realize decoupling control among 3 degrees of freedom displacements for the AC-DC-3DOF-HMB, and the whole control system has good dynamic and static performance.
HMB AC-DC-3DOF-HMB Mathematical Model Decoupling Control
Huangqiu Zhu Weiyu Zhang Quan Wang Tingting Zhang Zebing Yang
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
2109-2114
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）