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五、模糊控制器的设计模糊控制器的设计需要解决以下三个方面的问题:精确量的模糊化:模糊控制规则的构成;输出信息的模糊判决。下面就来对这三个方面的问题分别进行讨论。①精确量的模糊化对一个实际系统来说,如果观察到它的偏差e在[a,b]之间连续地变化,而我们希望把偏差e分为大、中、小和零这样几档,则可以通过变换式把在[a,b]之间连续变化的精确量e转化为在[-6,+6]之间变化的模糊量E,其中: +6附近为正大(PL); +4附近为正中(PM); +2附近为正小(PS); 比零稍大为正零(PO);
V. Design of Fuzzy Controller The design of fuzzy controller needs to solve the following three problems: the precise amount of fuzzification: the composition of fuzzy control rules; the fuzzy decision of output information. The following are the three aspects of the issue to be discussed separately. ① The exact amount of fuzzification For a real system, if it is observed that its deviation e continuously varies between [a, b], and we want to divide the deviation e into several large, medium, small and zero files , The exact amount e continuously varying between [a, b] can be transformed into a blur amount E varying between [-6, +6] by the transformation formula, where: (PM) around +4; positive (PS) around +2; positive zero (PO) over zero;