一种基于逆模糊模型的自适应逆控制方法  

Adaptive inverse control method based on fuzzy inverse model

作　　者：刘福才[1] 张艳欣[1] 王亚静[1] 窦春霞[1] 

机构地区：[1]燕山大学西校区电院工业计算机控制工程河北省重点实验室,秦皇岛066004

出　　处：《仪器仪表学报》2010年第5期961-967,共7页Chinese Journal of Scientific Instrument

基　　金：国家高技术研究发展计划(863);国家自然科学基金(60874023)资助项目

摘　　要：利用模糊逆建模方法,结合自适应逆控制思想,提出了一种基于模糊逆模型的自适应逆控制方法。首先利用模糊系统理论对未知非线性对象进行离线逆建模,得到模糊逆模型;然后将对象与初始逆模型进行串联,利用LMS算法在线调节逆模型,同时将其进行数字复制作为系统控制器,与对象进行串联。该方法可用较少的模糊规则数达到很好的跟踪控制效果,将该方法用于一混合非线性系统及球形液位控制中,仿真结果验证了该方法的有效性与实用性。An adaptive inverse control approach based on fuzzy inverse model is proposed using the method of fuzzy inverse modeling and the idea of adaptive inverse control. In this approach, fuzzy system theory is used to carry out off-line fuzzy inverse modeling of unknown non-linear plant firstly, and a fuzzy inverse model is obtained. Then the plant is connected to the initial inverse model in series, and the parameters of the inverse model are tuned by using the least mean square （LMS） algorithm in on-line manner, while its digital copy is connected to the plant in series as the system controller. This approach can acquire satisfied tracking control performance using less fuzzy rules. The proposed method was applied to a hybrid nonlinear system and the level control of a spherical tank, and the simulation results verify the effectiveness and practicability of the approach.

关 键 词：模糊辨识 模糊逆模型 自适应逆控制 LMS 跟踪控制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]