一种高精度模糊控制系统的设计方法

A Design Method of High-precision Fuzzy Control System

采用知形域上分片双一次插值方法对模糊控制表进行插值，使在线控制时的模糊控制器输入、输出值均取连续可变量，克服了普通模糊控制系统因控制器输入、输出变量量化所造成的控制精度低与可能出现的稳态颤振等缺点。仿真结果表明该方法具有优良的控制品质。

The method of the partition zone's bilinear interpolation in the rectangular domain is presented and used to interpolate the fuzzy control table in order to make the values of inputs and outputs of a fuzzy controller changeable continuously.the disadvantages of an ordinary fuzzy control system: lower control precision, and steadystate flutter which may appear because of quantitying the inputs and outputs of the controller , are overcome by using the presented method.The simulation results show that the method is of very good control performances.