模糊自适应PID在磁悬浮系统中的仿真研究

孙真和; 张静; 徐林

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模糊自适应PID在磁悬浮系统中的仿真研究

更新时间：2026-09-14

- 模糊自适应PID在磁悬浮系统中的仿真研究
- 模糊自适应PID在磁悬浮系统中的仿真研究
- Issue 5, (2010)
- 作者机构：
  
  哈尔滨理工大学自动化学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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孙真和, 张静, 徐林. 模糊自适应PID在磁悬浮系统中的仿真研究[J]. 2010, (5).
DOI：

孙真和, 张静, 徐林. 模糊自适应PID在磁悬浮系统中的仿真研究[J]. 2010, (5). DOI：

摘要

以磁悬浮系统为对象

通过钢球位置与控制电流的实验拟合曲线

在MATLAB下运用S-函数建立了非线性模型.针对磁悬浮系统开环不稳定、强烈非线性等特性

结合PID控制和模糊控制的优点

提出了一种改进的模糊自适应PID控制方法.对位置偏差E及偏差变化率Ec采用非线性模糊化

并将PID控制器中D环节从模糊控制器中独立出来

只对P和I参数进行模糊自整定.仿真结果表明:IFPID控制系统的抗干扰和自适应能力都优于常规PID控制

具有更好的动态特性和稳定性.

Abstract

The Nonlinearity model of magnetic levitation system was established with the experimental fitting curve between the ball position and the control circuit by S-function in MATLAB.Combining both the advantages of PID controller and fuzzy controller

an improved fuzzy adaptive PID controller(IFPID)was proposed aiming at open-loop instability and strong nonlinearity of maglev system.The algorithm of IFPID controller adopted nonlinear fuzzy of position deviations E and variation rates of deviation Ec

and separated D controller from PID controller while P and I parameters were adapted by fuzzy controller.The simulation results show that the IFPID controller has the advantages of higher anti-interference ability and adaptability than the conventional PID controller

and better dynamic property and stability.

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