用论域缩小逼近法消除模糊控制器的余差
ELIMINATING STEAD-STATE ERROR OF FUZZY CONTROLLER WITH THE SUCCESSIVE APPROXIMATION OF UNIVERSE OF DISCOURSE
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摘要: 本文根据模糊控制的特点,提出了用论域缩小逼近法来消除模糊控制器余差的新方法.该方法能够在控制过程中自始至终按照模糊控制规则调整被控过程,且不存在其他方法普遍存在的积分饱和现象,适用于具有任何特点的模糊控制系统.经仿真研究及实际应用,均证实了本文所提方法的正确性及优越性.Abstract: In this paper, a new method to eliminate the stead-state error of fuzzy controller by the suc-cessive approximation of universe of discourse is presented. The method can tune the controlled processes inaccordance with the fuzzy control rules from beginning to end, and there exits no integrating saturation. Thesimulation and application prove that the method presented in this paper is superior to the cut-PI method.