基于定性状态模型的定性控制方法研究

Qualitative Control Approach Based on Qualitative State Model

针对某些复杂系统难以获得精确数学模型来实现有效控制这一问题,采用定性状态模型来描述含有不确定性的非线性系统,提出了一种定性控制方法。首先通过对系统状态的定性划分,采用基于定性推理的自动机建立被控系统定性状态模型,然后设计基于系统定性状态模型的定性控制器,并给出了控制器设计的一般步骤。最后以液位控制系统为例,建立了液位对象的定性状态模型并设计了定性控制器,仿真结果表明该方法的有效性及其理论价值和应用前景。

In order to effectively control complex system that is difficult to acquire precision math model,a new method of qualitative control is presented by using qualitative state model for nonlinear systems with uncertainty.Through qualitative partition of system state,a controlled system qualitative state model based on qualitative reasoning automatism is constituted firstly.Then,the qualitative controller based on system qualitative state model is designed and the framed procedure is made.Finally,an example dev...