[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.7839/ksfc.2019.16.1.029

Controller Design for a Nozzle-flapper Type Servo Valve with Electric Position Sensor

Istanto, Iwan (Graduate school, Pukyong National University)
Lee, Ill-yeong (Pukyong National University)
Huh, Jun-young (Korea University of Technology and Education)
Lee, Hyun-cheol (SG Servo Co.)

Publication Information

Journal of Drive and Control / v.16, no.1, 2019 , pp. 29-35 More about this Journal

Abstract

The control performance of hydraulic systems is basically influenced by the performance of electrohydraulic servo valve incorporated in a hydraulic control system. In this study, a control design was proposed to improve the control performance of a servo valve with a non-contact eddy current type position sensor. A mathematical model for the valve was obtained through an experimental identification process. A PI-D control together with a feedforward (FF) control was applied to the valve. To further improve the dynamic response of the servo valve, an input shaping filter (ISF) was incorporated into the valve control system. Finally, the effectiveness of the proposed control system was verified experimentally.

Keywords

Servo Valve; Electric Position Feedback; Control Performance; Oscillation Phenomenon;

Citations & Related Records

Times Cited By KSCI : 3 (Citation Analysis)

Reference
Cited By KSCI

1	Moog Inc., Servo Valves & Pilot Operated Flow Control Valve, January, 2014.
2	S. D. Kim, S. H. Son and Y. B. Ham, "Effect of Spool-Sleeve Geometry on Static Pressure Characteristics of Servo Valves", Journal of Drive and Control, Vol.13 No.1, pp.34-42, 2016. DOI
3	C. N. Kang et al., "Dynamic Characteristics of Electrohydraulic Proportional Valve for an Independent Metering Valve of Excavator", Journal of Drive and Control, Vol.15, No.2, pp.46-51, 2018. DOI
4	S. Kim, S. Jeon and J. Yun, "A Study on the Phase Bandwidth Frequency of a Directional Control Valve based on the Metering Orifice", Journal of Drive and Control, Vol.15, No.1, pp.1-9, 2018. DOI
5	K. Ogata, Modern Control Engineering, Prentice Hall, New Jersey, 1997.
6	I.-Y. Lee et al., "Control of an Overlap-type Proportional Directional Control Valve Using Input Shaping Filter", Mechatronics, Vol.29, pp.87-95, 2015. DOI
7	H.-H. Kim, I.-Y. Lee and J.-Y. Huh, "High- Bandwidth Tracking Control of Electric Hydrostatic Actuator(EHA) Using an Input Shaping Filter", Lecture Notes in Electrical Engineering, Vol.415, pp.97-107, 2016.
8	M. Kenison and W. Singhose, "Concurrent Design of Input Shaping and Proportional Plus Derivative Feedback Control", Journal of Dynamic Systems, Measurement, and Control, Vol.124, No.3, pp.398-405, 2002. DOI
9	N. Suda, PID Control, Asakurashoten, Tokyo, pp.88-93, 2000.
10	http://www.sgservo.co.kr/index.html
11	https://kr.mathworks.com/help/xpc/index.html
12	J. Watton, Fundamentals of Fluid Power Control, Cambridge University Cambridge, pp.115-129, 2009.
13	I. Y. Lee and BRKR, Oil Hydraulic Engineering, 2nd Edition, Munundang Publishing Co., Seoul, 2019.
14	I. Istanto, "A Study on Control of Electrohydraulic Servo Valve", Dissertation, Graduate School, Pukyong National University, 2019.