Title :
Stiction compensation in control valves
Author_Institution :
Dept. of Autom. Control, Lund Inst. of Technol., Lund, Sweden
Abstract :
A procedure that compensates for static friction (suction) in control valves is presented. The compensation is obtained by adding a pulse sequence to the control signal. The characteristics of the pulse sequence are determined from the control action. Industrial field tests show that the procedure reduces the control error during stick-slip motion significantly compared to standard control without stiction compensation.
Keywords :
motion control; stick-slip; stiction; valves; control action; control signal; control valves; industrial field tests; pulse sequence; static friction; stick-slip motion; stiction compensation; suction; Actuators; Friction; Hysteresis; Oscillators; Pistons; Process control; Valves; Process control; friction; nonlinear control; nonlinear dynamics; valves;
Conference_Titel :
Control Conference (ECC), 1997 European
Conference_Location :
Brussels
Print_ISBN :
978-3-9524269-0-6
