Position Control of a Valve Controlled Asymmetric Cylinder System with Time Delay

摘要：

Existence of the long pipeline in hydraulic system will worsen the system dynamic performance. Aiming to acquire a simple control system model, a mass-damping dynamic model was used to simulate pipeline element by analyzing kinetic feature and physical properties of fluid in pipeline, and pipeline transfer function was derived. Mathematic model of position control of valve controlled asymmetric cylinder was established, and the high order plant was disposed to be second-order model with time delay in frequency domain. A PI-PD-Smith predictor was designed, and the parameters of controller were optimized according to integral time absolute error (ITAE) optimization criterion. The system with PI-PD-Smith predictor and conventional Smith predictor was compared by simulation. The result shows that PI-PD-Smith predictor has better control quality than conventional Smith predictor for position control of electro-hydraulic servo system with long pipelines.

关键词： long pipeline position control PI-PD-Smith predictor ITAE

作者: Chunfang Dong Qingxin Meng Chunfang Dong Yujie Zhu

作者单位: College of Mechanical and Electrical Engineering Harbin Engineering University Harbin,P. R. China College of Engineering and Technology Northeast Forestry University Harbin,P. R. China

会议类型: 国际会议

会议名称: 2010 IEEE信息与自动化国际会议(ICIA 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1-4

在线出版日期: 2010-06-20（万方平台首次上网日期，不代表论文的发表时间）