模糊控制与状态反馈控制的内在联系

模糊控制通常取输出与设定值的误差和误差的变化速率作为控制器的输入量,相当于经典控制中的输出反馈控制。从纯数学的角度出发,系统的某变量及其各阶导数又可以看成是系统的各个状态。以可分段线性化的、参数慢时变的系统为研究对象,根据模糊控制的本质对其进行解析研究,并通过对控制量的分析,与状态反馈控制进行类比,从中找出模糊控制和状态反馈控制的本质联系,这些控制量都是状态的函数。

Essential Relation Between Fuzzy Controller and State Feedback Control

The fuzzy-control problem is discussed,which usually takes the error and the error derivative between the output and the set point of the system as the inputs of the controller. The output feedback control of the classical control possesses the same sence.From the mathematical point of view,the variable and its derivatives of the system can be seen as the each state of the system.The system which is linear in each sect and whose parameter changes slowly is studied.The control process is on resolved based fuzzy-control.The essential relationship between the fuzzy-control and the state-feedback control is presented,which is the control that variable is the function of the state.And analogy between the state feedback and fuzzy-control is drawn by analyzing the control variable.