Hardware-in-the-loop Simulation of Electrohydraulic Pressure Servo System

摘要：

In order to improve the tracking performance of the pressure servo system a new nonlinear hybrid controller was developed composed of a classical PID controller and a fuzzy controller based on self-adjusting modifying factor,which was added feedforward compensation.A fuzzy switching mode was employed to avoid the undesirable disturbances caused by the switchover between the two control methods.The model identification experiments were carried out in hardware-in-the-loop simulation environment and the identification model of the practical system was acquired.The feasibility of the control scheme was validated by hardware-in-the-loop simulation experiments.The hardware-in-the-loop simulation results show that the hybrid PID controller improves stability and rapidity when load rigidity and mass changed,and the system control performance can be enhanced through matching the load rigidity and mass reasonably.

关键词： hardware-in-the-loop pressure servo system model identification hybrid fuzzy PID load rigidity change.

作者: Junpeng Shao Guihua Han Zhongwen Wang Yuhong Dong Jiachun Liu

作者单位: Department of Mechanical Power Engineering,Harbin University of Science and Technology,Harbin,Heilon 207workshop,Hafei automobile industry group company,Harbin,Heilongjiang Province,China

会议类型: 国际会议

会议名称: International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）