基于模糊免疫PID的轧机液压位置自动控制  

Hydraulic Automatic Position Control Based on Fuzzy Immune PID

作　　者：樊立萍[1] 马怀通 刘义 

机构地区：[1]沈阳化工大学环境与安全工程学院 [2]沈阳化工大学信息工程学院 [3]北方重工集团压延设备分公司

出　　处：《电气传动》2015年第2期58-62,共5页Electric Drive

基　　金：国家科技支撑计划项目(2012BAF09B01)

摘　　要：液压位置控制系统是镁板轧机板厚控制中的重要环节。在确立液压位置控制系统的简化数学模型基础上,针对系统的非线性和时变性等特点,设计了一种基于模糊免疫PID的液压位置自动控制方案。该控制器借鉴了生物免疫系统的调节作用和模糊推理的非线性逼近能力,综合了模糊控制、免疫调节规律与传统PID控制技术的优势。仿真结果表明,基于模糊免疫PID的液压位置自动控制具有超调量小、调节时间短、自适应和鲁棒性强等优点,能够较好地实现对液压位置系统的自动控制。Hydraulic automatic position control（APC）system is a very important part of gauge control system of amagnesium sheet mill. In consideration of the characteristics of nonlinearity and time-varying,a mathematical model ofhydraulic APC system was set up and a fuzzy immune PID control scheme was designed. The controller inspired by theprocess of biological immune system and the ability of approaching nonlinear functions with fuzzy inference system,and the advantages of fuzzy control and immune regulation law was integrated into the traditional PID control.Simulation results show that the proposed method has the advantages of small overshoot,short setting time,betteradaptive ability and strong anti-disturbance ability,and it can control the hydraulic APC system effectively.

关 键 词：模糊免疫 轧机 位置自动控制 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]