基于模糊自适应的主动磁悬浮系统稳定性控制  

Stability Control of Active Magnetic Levitation System Based on Fuzzy Adaptive Theory

作　　者：肖闽进[1] 张建生[1] 钱显毅[1] 

机构地区：[1]常州工学院电子信息与电气工程学院,常州213002

出　　处：《南京航空航天大学学报》2013年第3期390-395,共6页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：国家自然科学基金(51175052)资助项目

摘　　要：针对主动磁悬浮主轴非线性不稳定的系统特征,提出了一种模糊参数自适应PID控制方法。该方法根据系统状态,通过模糊推理过程,产生一组PID控制器最优控制参数,以实现系统的自适应控制。构建了磁悬浮主轴的闭环结构模型并进行了系统仿真实验,结果表明,模糊参数自适应PID控制方法超调控制性能优于常规方法12.5%,并具有良好的抗扰动性能。Aiming at the nonlinearity and non-stability of the active magnetic levitation system, a fuzzy a- daptive PID control method is proposed. According to the system state, a set of the most optimal con- trol parameter for PID controller is produced through the fuzzy inference process, so as to realize the a- daptive control. A closed-loop structure model of the magnetic suspension spindle is constructed and the system simulation experiments are carried out. The results show that the overshoot control performance of fuzzy parameters adaptive PID control method is better than that of the conventional method 12.5% and the method has good performance in the disturbance rejection.

关 键 词：模糊控制 模型 自适应PID控制 磁悬浮系统 稳定性 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]