Pressure control of hydraulic servo system using proportional control valve |
| |
| Authors: | Kyong-Uk Yang In-Ho Oh Ill-Yeong Lee |
| |
| Affiliation: | (1) Yosu National University, Yosu, Korea;(2) Korea Maritime University, Pusan, Korea;(3) Pukyong National University, Pusan, Korea |
| |
| Abstract: | The purpose of this study is to develope a control scheme for the hydraulic servo system which can rapidly control the pressure
in a hydraulic cylinder with very short stroke. Compared with the negligible stroke of the cylinder in the system, the flow
gain of the proportional pressure control valve constituting the hydraulic servo system is relatively large and the time delay
on the response of the valve is quite long. Therefore, the pressure control system, in this study tends to get unstable during
operations. Considering the above mentioned characteristics of the system, a two-degree-of-freedom control scheme, composed
of the I-PDD2… feedback compensator and the feedforward controller, is proposed. The reference model scheme is used in deciding the parameters
of the controllers. The validity of the proposed control scheme is confirmed through the experiments. |
| |
| Keywords: | Pressure Control Two-Degree of Freedom Control Proportional Pressure Control Valve |
| 本文献已被 SpringerLink 等数据库收录！ |
|
