Valve stiction compensation based on equivalent-input-disturbance approach

The presence of stiction in a control valve causes loop oscillation, and limits the control loop performance. To address this problem, the paper proposes a method based on equivalent-input-disturbance (EID) to control valve stiction. In this method, a classic two-parameter stiction model is adopted. Then, an EID estimator is utilized to estimate the effects of valve stiction in control system. And the controller is designed in the spirit of repetitive control. The simulation control results are compared with the traditional method. The results demonstrate that the proposed EID method can effectively improve the control performance of valve stiction and eliminate the stiction-induced oscillations.

[1]  Harpreet Singh,et al.  Robust optimization-based multi-loop PID controller tuning: A new tool and its industrial application , 2012 .

[2]  Fredrik Gustafsson,et al.  A segmentation‐based method for detection of stiction in control valves , 2003 .

[3]  Joseba Quevedo,et al.  Introduction to the DAMADICS actuator FDI benchmark study , 2006 .

[4]  Sirish L. Shah,et al.  Modelling valve stiction , 2005 .

[5]  Myung Jin Chung,et al.  Design of a repetitive controller: an application to the track-following servo system of optical disk drives , 2006 .

[6]  Mingxing Fang,et al.  Improving Disturbance-Rejection Performance Based on an Equivalent-Input-Disturbance Approach , 2008, IEEE Transactions on Industrial Electronics.

[7]  S. Lakshminarayanan,et al.  A New Unified Approach to Valve Stiction Quantification and Compensation , 2009 .

[8]  Sirish L. Shah,et al.  Stiction – definition, modelling, detection and quantification , 2008 .

[9]  Yong He,et al.  Estimation and rejection of aperiodic disturbance in a modified repetitive-control system , 2014 .

[10]  Z. Man,et al.  Adaptive Repetitive Control of System Subject to Periodic Disturbance with Time-Varying Frequency , 2011, 2011 First International Conference on Informatics and Computational Intelligence.

[11]  H. Kobayashi,et al.  Disturbance estimation and rejection - an equivalent input disturbance estimator approach , 2004, 2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601).

[12]  Biao Huang,et al.  Compensation of control valve stiction through controller tuning , 2012 .

[13]  Jiandong Wang,et al.  Closed-Loop Compensation Method for Oscillations Caused by Control Valve Stiction , 2013 .

[14]  T. Hägglund.  A friction compensator for pneumatic control valves , 2002 .

[15]  Kouhei Ohnishi,et al.  Practical PID controller tuning for motion control , 2015, 2015 IEEE International Conference on Mechatronics (ICM).

[16]  Nina F. Thornhill,et al.  Automatic detection and quantification of stiction in control valves , 2006 .