计算机与应用化学
計算機與應用化學
계산궤여응용화학
COMPUTERS AND APPLIED CHEMISTRY
2013年
12期
1422-1426
,共5页
SBR工艺%模糊控制%单变量控制%多变量控制
SBR工藝%模糊控製%單變量控製%多變量控製
SBR공예%모호공제%단변량공제%다변량공제
SBR sewage treatment method%fuzzy control%univariate control%multivariate control
针对在污水处理过程中存在的多变量相互影响，单变量控制显然不能满足其要求的情况下，本文提出了2种分级多变量模糊控制方法，分别为基于模糊PID-Smith和模糊理论的2级控制和基于双模糊PID-Smith理论的2级控制。这2种控制方法均采用1个双输入、单输出的控制器，它在结构上分为2级，其中基于模糊PID-Smith和模糊理论的2级控制器的第1级结构为模糊PID-Smith控制，第2级结构为模糊控制；而基于双模糊PID-Smith理论的2级控制的2级结构均为模糊PID-Smith控制。这2种控制器的设计方法不但解决了多变量模糊控制规则难以制定的问题，又充分的考虑了其他因素对控制量DO的影响，从而实现了污水处理过程中的多变量模糊控制。本文利用MATLAB软件实现了这2种控制方法的设计与仿真，并和单变量模糊控制进行了比较，总结了多变量模糊控制的特点和优势，指明了把多变量模糊控制应用于污水处理系统是切实可行的。
針對在汙水處理過程中存在的多變量相互影響，單變量控製顯然不能滿足其要求的情況下，本文提齣瞭2種分級多變量模糊控製方法，分彆為基于模糊PID-Smith和模糊理論的2級控製和基于雙模糊PID-Smith理論的2級控製。這2種控製方法均採用1箇雙輸入、單輸齣的控製器，它在結構上分為2級，其中基于模糊PID-Smith和模糊理論的2級控製器的第1級結構為模糊PID-Smith控製，第2級結構為模糊控製；而基于雙模糊PID-Smith理論的2級控製的2級結構均為模糊PID-Smith控製。這2種控製器的設計方法不但解決瞭多變量模糊控製規則難以製定的問題，又充分的攷慮瞭其他因素對控製量DO的影響，從而實現瞭汙水處理過程中的多變量模糊控製。本文利用MATLAB軟件實現瞭這2種控製方法的設計與倣真，併和單變量模糊控製進行瞭比較，總結瞭多變量模糊控製的特點和優勢，指明瞭把多變量模糊控製應用于汙水處理繫統是切實可行的。
침대재오수처리과정중존재적다변량상호영향，단변량공제현연불능만족기요구적정황하，본문제출료2충분급다변량모호공제방법，분별위기우모호PID-Smith화모호이론적2급공제화기우쌍모호PID-Smith이론적2급공제。저2충공제방법균채용1개쌍수입、단수출적공제기，타재결구상분위2급，기중기우모호PID-Smith화모호이론적2급공제기적제1급결구위모호PID-Smith공제，제2급결구위모호공제；이기우쌍모호PID-Smith이론적2급공제적2급결구균위모호PID-Smith공제。저2충공제기적설계방법불단해결료다변량모호공제규칙난이제정적문제，우충분적고필료기타인소대공제량DO적영향，종이실현료오수처리과정중적다변량모호공제。본문이용MATLAB연건실현료저2충공제방법적설계여방진，병화단변량모호공제진행료비교，총결료다변량모호공제적특점화우세，지명료파다변량모호공제응용우오수처리계통시절실가행적。
Because the presence of multivariate interaction in the sewage treatment process and univariate control obviously does not meet its requirements, this paper puts forword two types of multivariate fuzzy control methods:one is two-levels control based on fuzzy PID-Smith and fuzzy theory, the other is two-levels control based on the double fuzzy PID-Smith theory. Both control methods use a dual-input, single-output controller, it is divided into two levels in the structure:two-levels controller based on fuzzy PID-Smith and fuzzy theory is that controller where the first-level structure is fuzzy PID-Smith Control, second-stage structure is fuzzy control, two-levels controller based on the double fuzzy PID-Smith theory is that controller where the two-levels structure both are fuzzy PID-Smith Control. These two kinds of controller design method not only solve the problem that the multivariable fuzzy control rules are difficult to formulate, but also fully consider the influence of other factors on the control volume DO. This paper realizes the design and simulation of the two kinds of control method by using MATLAB software. Compared with univariate fuzzy control, it summarizes the characteristics and advantages of the multivariable fuzzy control and indicates that it is feasible to apply the multivariable fuzzy control to the wastewater treatment system.
