基于U模型的模糊免疫自抗扰控制方法研究  

Study on Fuzzy Immune Active Disturbance Rejection Control Method Based on U model

作　　者：韩明秀 王海红[1] HAN Mingxiu;WANG Haihong(Academy of Information Science and Technology,Qingdao University of Science and Technology,Qingdao 266061,China)

机构地区：[1]青岛科技大学信息科学技术学院,山东青岛266061

出　　处：《计算机测量与控制》2022年第10期103-109,共7页Computer Measurement &Control

基　　金：国家自然科学基金项目(61104004,61170258,61103196)。

摘　　要：针对一类非线性系统在持续扰动下的控制问题,设计基于U模型的模糊免疫自抗扰控制方法;首先,引入U模型方法进行被控对象建模,提高处理非线性系统的能力,结合自抗扰控制方法,设计基于U模型的改进自抗扰控制器;在非线性反馈环节引入模糊免疫方法实现非线性智能反馈,设计基于U模型的模糊免疫自抗扰控制系统;最后仿真实验表明:基于U模型的模糊免疫自抗扰控制方法在保持了基于U模型的自抗扰控制的简洁性和良好抗扰性能的基础上,简化了控制器参数调节过程,在持续未知扰动下的跟踪速度、精度都更优。Aiming at a class of nonlinear system with unknown continuous disturbances control problems,the fuzzy immune active disturbance rejection control(ADRC)strategy based on U model is designed.Firstly,the U model method is introduced to model the plant to improve and deal with the ability of nonlinear systems.Combined with ADRC method,an improved ADRC based on the U model is designed.Then fuzzy immune method is introduced in the nonlinear feedback to realize the nonlinear intelligent feedback,the fuzzy immune ADRC strategy based on the U model is designed.The final simulation experiment shows that,the fuzzy immune ADRC strategy based on the U model simplifies the process of controller parameter adjustment,which maintains the simplicity and good anti-disturbance performance of the ADRC strategy based on the U model,and the tracking speed and accuracy of the continuous unknown disturbance are better than that of the ADRC based on the U model.

关 键 词：U模型 模糊控制 免疫算法 自抗扰控制 非线性系统 

分 类 号：TP271.72[自动化与计算机技术—检测技术与自动化装置]