摘要
针对子系统的不可测状态之间呈下三角阵形式关联的一类高阶非线性系统 ,本文给出了其观测器型式和反馈增益阵的设计方法 ,同时进一步讨论了存在不可测输入时系统的观测 ,以及为便于观测器设计而对可测变量进行的处理。对于化工生产过程中经常遇到的这类高阶非线性系统 ,这种观测器设计简单 ,便于实施和调整。
In this paper,a nonlinear observer and the design method of the feedback gain matrix are presented for a class of high-dimensional nonlinear system,which are composed of subsystems whose unmeasured states are coupled in lower triangular form.The observation problem of systems with unmeasured input is further researched,and some considerations for disposing measured variables are discussed for the convenience of observer design.With its ease in design and implementation,the observer can find many applications in chemical processes.
出处
《化工自动化及仪表》
CAS
北大核心
2001年第1期9-13,共5页
Control and Instruments in Chemical Industry
关键词
非线性系统
高阶系统
观测器
状态估计
过程控制
nonlinear system
high-dimensional system
observer
state estimation
process control
