一种基于柔性逻辑的控制方法研究

模糊控制是基于领域专家所给出的模糊控制规则来实现对系统的控制,这些模糊控制规则粗略地描述了控制器输入和输出之间的关系.模糊控制采用的是一种分段逼近的思想,因此在对高阶和多输入等实际复杂系统控制过程中,模糊控制存在控制规则组合爆炸和控制精度不高两大问题.从常规二维模糊控制器的输入变量误差E和误差变化率EC的基本物理意义出发,深入分析它们之间所蕴含的逻辑关系,指出这种关系的本质就是泛逻辑学中的泛组合关系,可用简单的泛组合运算代替复杂的模糊规则推理过程.据此提出了一种柔性逻辑控制方法,可实现对复杂系统的精确控制.最后,一级倒立摆的实物实验结果证明了该方法的可行性和有效性.

Studies on Control Method Based on Flexible Logic

By analyzing thoroughly the essential relation between two input variables of the normal two-dimensional fuzzy controller,this paper proved that the essential relation is just universal combinatorial relation in Universal Logic.So the simple universal combinatorial operation can be used instead of complex fuzzy reasoning process.As a result,a flexible logic control method was proposed to realize the accurate control for complex system.Finally,the experimental result of single inverted-pendulum physical syst...