【摘要】 控制系统的输入输出间的耦合严重影响控制效果,实现解耦成为控制研究的重要课题。四水箱液位控制系统是多输入多输出的非线性时变耦合系统,如何实现输入输出间解耦,对研究复杂过程控制具有指导意义。基于这种情况应用机理分析法建立四水箱液位控制系统的数学模型,并运用矩阵分析理论分析该系统的稳定性、能控性和能观测性,利用状态反馈对系统进行解耦,实现四水箱解耦控制系统。更多还原

【Abstract】 The coupling system is the important problem in a control system in reason of complex input and output relationship.A four-tank system is multiple variables,nonlinear,time varying,coupling,so that it is used to simulate the complex control system in industry.In this paper,based on the mechanism analysis and matrix theory,a mathematic model is established,and the stability,controllability and observability are analyzed.By using state feedback to decouple the system,an integral coupled system has been realized.更多还原