Actuator stiction compensation via variable amplitude pulses

被引：9

作者：

Arifin, B. M. S. ^{[1
]}

Munaro, C. J. ^{[2
]}

Angarita, O. F. B. ^{[2
]}

Cypriano, M. V. G. ^{[2
]}

Shah, S. L. ^{[1
]}

机构：

[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada

[2] Univ Fed Espirito Santo, Dept Engn Eletr, Av Fernando Ferrari 514, BR-29075910 Vitoria, ES, Brazil

来源：

ISA TRANSACTIONS | 2018年 / 73卷

关键词：

Valve stiction; Friction compensation; Control valves; Process control; Valve positioner; PNEUMATIC CONTROL VALVES; MODEL-FREE APPROACH; CONTROL LOOPS; CONTROLLER;

D O I：

10.1016/j.isatra.2018.01.010

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 novel model free stiction compensation scheme is developed which eliminates the oscillations and also reduces valve movement, allowing good setpoint tracking and disturbance rejection. Pulses with varying amplitude are added to the controller output to overcome stiction and when the error becomes smaller than a specified limit, the compensation ceases and remains in a standby mode. The compensation re-starts as soon as the error exceeds the user specified threshold. The ability to cope with uncertainty in friction is a feature achieved by the use of pulses of varying amplitude. The algorithm has been evaluated via simulation and by application on an industrial DCS system interfaced to a pilot scale process with features identical to those found in industry including a valve positioner. (C) 2018 ISA. Published by Elsevier Ltd. All rights reserved.

引用

页码：239 / 248

页数：10

共 23 条

[1] Arifin B.M. S., 2014, IFAC Proceedings Volumes, V47, P5957
[2] A SURVEY OF MODELS, ANALYSIS TOOLS AND COMPENSATION METHODS FOR THE CONTROL OF MACHINES WITH FRICTION
ARMSTRONGHELOUVRY, B
DUPONT, P
DEWIT, CC
[J]. AUTOMATICA, 1994, 30 (07) : 1083 - 1138
[3] Modeling, Detection and Quantification, and Compensation of Stiction in Control Loops: The State of the Art
Brasio, Ana S. R.
Romanenko, Andrey
Fernandes, Natercia C. P.
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2014, 53 (39) : 15020 - 15040
[4] Modelling valve stiction
Choudhury, MAAS
Thornhill, NF
Shah, SL
[J]. CONTROL ENGINEERING PRACTICE, 2005, 13 (05) : 641 - 658
[5] Novel Model-Free Approach for Stiction Compensation in Control Valves
Cuadros, Marco Antonio de Souza L.
Munaro, Celso J.
Munareto, Saul
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (25) : 8465 - 8476
[6] Durand H, 2016, P AMER CONTR CONF, P4488, DOI 10.1109/ACC.2016.7526059
[7] Actuator Stiction Compensation via Model Predictive Control for Nonlinear Processes
Durand, Helen
Christofides, Panagiotis D.
[J]. AICHE JOURNAL, 2016, 62 (06) : 2004 - 2023
[8] A friction compensator for pneumatic control valves
Hägglund, T
[J]. JOURNAL OF PROCESS CONTROL, 2002, 12 (08) : 897 - 904
[9] A curve fitting method for detecting valve stiction in oscillating control loops
He, Q. Peter
Wang, Jin
Pottmann, Martin
Qin, S. Joe
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (13) : 4549 - 4560
[10] A New Unified Approach to Valve Stiction Quantification and Compensation
Ivan, Lee Zhi Xiang
Lakshminarayanan, S.
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2009, 48 (07) : 3474 - 3483

← 1 2 3 →