基于模糊控制的悬浮球高度控制系统设计研究

Design and Research of Suspension Ball Height Control System Based on Fuzzy Control

气悬浮技术目前运用在无接触运输领域,但气悬浮系统固有的非线性、不稳定性和外界干扰不确定性使得传统控制方法难以取得较好的控制效果。以悬浮球为研究对象,针对悬浮球控制不稳定问题,建立了悬浮球运动的数学模型,设计了悬浮球PID和模糊控制两种高度控制系统及仿真模型,并搭建实验平台,将实际结果与仿真结果进行对比。结果表明,本文所提出的模糊控制系统比传统的PID控制能更稳定地控制悬浮球的高度。

Air suspension technology is currently used in the field of non-contact transportation,but the inherent nonlinearity,instability,and uncertainty of external interference of air suspension systems make it difficult for traditional control methods to achieve better control results.This paper takes the floating ball as the research object.Aiming at the control instability of the floating ball,a mathematical model of the floating ball movement is established,and two height control systems and simulation models of the floating ball PID and fuzzy control are designed.The results are compared with the simulation results.The results show that the fuzzy control system proposed in this paper can control the height of the floating ball more stably than the traditional PID control.