求翻译：针对啤酒发酵温度难以精确控制的问题，本文提出了一种基于误差分级确定伸缩因子的变论域模糊PID控制方法，分别对常规PID算法、模糊PID算法、变论域模糊PID算法的啤酒发酵温度控制系统的做了对比，结果表明：变论域模糊PID控制算法有更快的响应速度、更小的超调量和更好的跟踪性能，实现了系统的无差控制，减弱了控制对象的滞后性能对控制系统的影响。是什么意思？

Beer of the problem is difficult to precisely control the temperature of fermentation , we propose a classification based on the error factor determining variable universe fuzzy PID control telescopic methods, namely conventional PID algorithm, fuzzy PID algorithm, the variable universe fuzzy PID al

For beer fermentation temperature is difficult to control precisely the problem, this paper presents the one based on Error Classification The scale factor of the same theory domain fuzzy PID control methods, respectively, to the General PID Algorithm, fuzzy PID Algorithm, theory domain fuzzy PID al

In view of the beer fermentation temperature accuracy control question, this article proposed with difficulty one kind changes the universe of discourse fuzzy PID control method based on the erroneous graduation determination expansion and contraction factor, separately to the conventional PID algor

For beer fermentation temperature to precise control of problem, paper proposed has a based on errors grading determines telescopic factor of variable on the domain fuzzy PID control method, respectively on General PID algorithm, and fuzzy PID algorithm, and variable on the domain fuzzy PID algorith

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