Title :
Modeling and identification of spool dynamics in an industrial electro-hydraulic valve
Author :
Aranovskiy, Stanislav
Author_Institution :
Dept. of Control Syst. & Inf., Nat. Res. Univ. of Inf. Technol., Mech. & Opt., St. Petersburg, Russia
Abstract :
Approximate models of spool dynamics are proposed to deal with dynamic delays observed for an industrial electro-hydraulic valve. The suggested model consists of a linear block and two static nonlinearities. A method for identification of parameters is suggested that allows to deal with a case when only pressure in a hydraulic cylinder is measured but not the displacement of the spool. The approach is verified experimentally.
Keywords :
approximation theory; hydraulic systems; valves; dynamic delays; hydraulic cylinder; hydraulic systems; industrial electro-hydraulic valve; linear block; parameters identification method; spool dynamics identification; spool dynamics modeling; static nonlinearities; Delay effects; Force; Friction; Hydraulic drives; Pistons; Transient analysis; Valves;
Conference_Titel :
Control & Automation (MED), 2013 21st Mediterranean Conference on
Conference_Location :
Chania
Print_ISBN :
978-1-4799-0995-7
DOI :
10.1109/MED.2013.6608702
