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模煳逻辑控制在纸浆浓度调节中的应用.pdf
18 2 Vol. 18, No . 2
2001 4 CONTROL THEORY AND APPLICATIONS Ap . , 2001
: 1000- 8152(2001) 02- 0238- 03
黄文英 李昌禧
( , 430074)
: , , ,
PID , . PID , ,
, .
: ; ;
: A
The Application of Fuzzy Control in Pulp Consistency Control System
HUANG Wenying and LI Changxi
( Depa tment of Cont ol of Science and Enginee ing, Huazhong Unive sity of Science and Technology Wuhan, 430074, P. R. China)
Abstract: In the p o cess of pulp consistency cont o l, digital PID egulating w ill b ing se ious lag effect, because of the
t ansmission lag, the actuato s ine tia, especially the long sampling pe iod of the moving blade consistency t ansmitte . It s
difficult to achieve satisfacto y esult . In this pape , fuzzy egulating has such advantages as high cont ol accu acy, quick e-
sponse speed and good stability compa ed with PID egulating.
Key words: fuzzy cont ol; pulp consistency; moving blade consistency t ansmitte and cont olle
[ 1]
1 ( Int oduction) .
, ,
1 ,
,
1+ Ts . ,
1 - Ts
e ,
1+ Ts
PID , 1(
( t = 2s) , PID
, ) .
, .
2 ( The design of fuzzy 1) 1: e .
cont olle ) : - 0. 8% ~ 08% ;
[ 2,3] : X = { - 6, - 5, - 4, - 3, - 2, - 1,
21 ( Va iable f uzzification)
- 0, + 0, +
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