Adaptive Control of Water Hydraulic Cylinder System with High Speed On-Off Valve

摘要：

In this research, water hydraulic cylinder control system was constructed using high-speed on-off valves and two robust controllers were proposed and examined. The high-speed on-off valve can control the flow rate depending on its carrier frequency and duty ratio. The system contains the nonlinear flow characteristics as well asload and/or supply pressure change as uncertainty. Toover come these uncertainties, two control strategies, adisturbance-observer-type 2DOF controller and an adaptive controller, were applied to achieve precise position control. The experimental results showed good tracking performance.

关键词： Water hydraulics Cylinder control On-Off valve control

作者: K.ITO1 A.KURATA S.IKEO

作者单位: Department of Mechanical Engineering, Faculty of Science and Technology SOPHIA University, 7-1, Kioi Hitachi Appliances, Inc., 1-1, Higashitagacho l-chome, Hitachi-shi, Ibaraki-ken, 3168502, Japan

会议类型: 国际会议

会议名称: The Fifth International Symposium on Fluid Power Transmission and Control(ISFP2007)（2007年国际流体动力传输与控制学术会议）

会议地点: 北戴河

会议语种:英文

页码: 485-489

在线出版日期: 2007-06-06（万方平台首次上网日期，不代表论文的发表时间）