Open AccessController design for a nozzle-flapper type servo valve with electric position sensor
Author(s) -
Iwan Istanto,
Ill-Yeong Lee,
Jun Young Huh,
Hyun-Cheol Lee
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1303/1/012094
Subject(s) - electrohydraulic servo valve , control theory (sociology) , feed forward , valve actuator , pid controller , servo control , control engineering , engineering , control valves , control system , nozzle , servo , servomechanism , controller (irrigation) , position (finance) , servomotor , process (computing) , computer science , ball valve , control (management) , mechanical engineering , artificial intelligence , temperature control , agronomy , electrical engineering , finance , economics , biology , operating system
The control performance of hydraulic systems is basically influenced by the performance of the electro-hydraulic servo valve incorporated in a hydraulic control system. In this study, the authors propose a control design to improve the control performance of a servo valve with a non-contact eddy current type position sensor. A mathematical model for the valve is obtained through an experimental identification process. A PI-D control together with a feedforward (FF) control is applied to the valve. To further improve the dynamic response of the servo valve, an input shaping filter (ISF) is incorporated into the valve control system. Finally, the effectiveness of the proposed control system is verified experimentally.