A friction compensator for pneumatic control valves

被引：124

作者：

Hägglund, T ^{[1
]}

机构：

[1] Lund Inst Technol, Dept Automat Control, S-22100 Lund, Sweden

来源：

JOURNAL OF PROCESS CONTROL | 2002年 / 12卷 / 08期

关键词：

process control; nonlinear control; nonlinear dynamics; valves; friction;

D O I：

10.1016/S0959-1524(02)00015-X

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A procedure that compensates for static friction (stiction) in pneumatic control valves is presented. The compensation is obtained by adding pulses to the control signal. The characteristics of the pulses are determined from the control action. The compensator is implemented in industrial controllers and control systems, and the industrial experiences show that the procedure reduces the control error during stick-slip motion significantly compared to standard control without stiction compensation. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：897 / 904

页数：8

共 8 条

[1] A SURVEY OF MODELS, ANALYSIS TOOLS AND COMPENSATION METHODS FOR THE CONTROL OF MACHINES WITH FRICTION [J].

ARMSTRONGHELOUVRY, B ;

DUPONT, P ;

DEWIT, CC .

AUTOMATICA, 1994, 30 (07) :1083-1138

[2]

Astrom K. J., 1995, PID CONTROLLERS THEO

[3]

Bialkowski W.L., 1993, PULP PAP-CANADA, P9411

[4]

COUGHRAN MT, 1994, INTECH, V41, P58

[5]

Ender D. B., 1997, Journal A, V38, P11

[6]

ENDER DB, 1993, CONTROL ENG, V40, P180

[7] A CONTROL-LOOP PERFORMANCE MONITOR [J].

HAGGLUND, T .

CONTROL ENGINEERING PRACTICE, 1995, 3 (11) :1543-1551

[8] SURFACE FRICTION UNDER TIME-DEPENDENT LOADS [J].

RICHARDSON, RSH ;

NOLLE, H .

WEAR, 1976, 37 (01) :87-101

← 1 →