基于转速的磁轴承柔性转子系统模糊控制策略研究

发布时间：2018-03-29 13:51

本文选题：磁悬浮轴承　切入点：柔性转子　出处：《机械与电子》2016年03期

【摘要】：建立了五自由度磁悬浮轴承柔性转子试验系统,利用Matlab工具箱对比分析了不完全微分PID和模糊自调整PID控制策略对系统动态性能的影响,设计制作了基于TMS320F28335DSP的数字控制器硬件电路,在模糊自调整PID控制策略的基础上引入转速量,在不同转速区段采用不同的模糊自调整因子,以满足转子在各转速区段对支承特性的不同要求,编写了相应的软件,完成了系统的高速旋转试验。仿真和试验结果均表明,采用基于转速的模糊自调整控制策略,可以改善磁悬浮轴承柔性转子系统的动态性能。
[Abstract]:A five-degree-of-freedom magnetic bearing flexible rotor test system is established. The effects of incomplete differential PID and fuzzy self-adjusting PID control strategy on the dynamic performance of the system are compared and analyzed by using Matlab toolbox. The hardware circuit of digital controller based on TMS320F28335DSP is designed and fabricated. The rotational speed is introduced on the basis of fuzzy self-adjusting PID control strategy, and different fuzzy self-adjusting factors are adopted in different speed regions. In order to meet the different requirements of the rotor for the supporting characteristics in each rotational speed section, the corresponding software is compiled, and the high-speed rotation test of the system is completed. The simulation and test results show that the fuzzy self-adjusting control strategy based on the rotational speed is adopted. It can improve the dynamic performance of magnetic bearing flexible rotor system.
【作者单位】：南京航空航天大学机电学院;
【基金】：国家自然科学基金资助项目(51275238) 南京航空航天大学研究生创新基地(实验室)开放基金项目资助(ykfjj20150505)
【分类号】：TP273.4;TH133.3

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