摘要
任何一个实际系统均具有一定程度的非线性,由于非线性对象的复杂性,目前还没有统一的控制器设计方法,用传统的线性系统理论来设计,当工作点大范围变化时,很难保证其性能及稳定性.本文提出了基于多模型的内模控制方法,它对非线性过程的控制具有良好的性能.在该方法中,非线性对象的内模是通过在不同工况辨识得到多模型.仿真结果表明,该控制策略比常规的单内模控制在大范围具有更好的控制品质.
Any actual system has nonlinear characteristics. There is no unified controller design method at present. The control of nonlinear processes to ensure good performance and stability over a wide range of operating conditions is difficult. Multiple internal model control (MIMC) design strategy was developed for a class of nonlinear systems. The process internal model is represented by the weightedsum of the linear model by using model validity function. Simulation result of CSTR showed that the proposed MIMC design method is superior to its conventional counterpart in performance.
出处
《浙江大学学报(工学版)》
EI
CAS
CSCD
北大核心
2003年第1期56-59,共4页
Journal of Zhejiang University:Engineering Science