摘要
为了有效地解决工业现场中常见的饱和现象,提出了一种基于Bessel滤波器最优状态反馈与改进内模控制相结合的抗饱和控制方法。采用基于Bessel滤波器原理的优化设计方法,充分利用Bessel滤波器所具有的低通滤波特性及鲁棒性较高的优势,改进系统的动态特性。简要地介绍了饱和问题研究的现状,阐述了产生饱和问题的根本原因。进行了系统的分析并给出了改进内模控制器设计方法。给出了运用该方法的一个仿真实例。通过对化工过程中常见的装置进行实验仿真研究表明,当饱和现象严重的时候,系统也能达到理想的控制效果;当模型严重失配或存在干扰时,系统具有很强的鲁棒性能和抗干扰能力。该方法是一种很有实际价值的工程控制方法。
To the common phenomenon of saturation in the industrial field,an anti-windup control method is proposed based on a combination of Bessel filter optimal state feedback and modified internal model control.Based on principles of optimal design method,the Bessel filter with the has a low-pass filter characteristics and the advantages of high robustness is used to improve the dynamic characteristics.The systematic analysis and the corresponding controller design method are given.The simulation results on common chemical process,the simulation results show that,the system is able to achieve the desired control effect even;the saturation is serious,and the system has a strong anti-disturbance ability and robust performance.This method is also available for a practical application of the engineering control ness.
出处
《控制工程》
CSCD
北大核心
2011年第1期22-24,82,共4页
Control Engineering of China
基金
863项目(2008AA042131)
973项目(2007CB714300)
