机械与电子2016，Vol.34Issue(4)：43-46,50,5.
基于S7300的比例阀控液压缸的PID静态补偿控制
PID Static Compensation Control Strategy of Hydraulic Cylinder Controlled by Proportional Valve Based on S7 300
余祖耀 1陈壮1
作者信息
- 1. 华中科技大学船舶与海洋工程学院，湖北 武汉 430074
- 折叠
摘要
Abstract
The mathematic model of the asymmetrical cylinder controlled by symmetric valve is estab-lished respectively in the both cases of oil inlet from the rod chamber and oil inlet from the piston chamber. MATLAB/Simulink is introduced to analyze the static and dynamic characteristics of the hydraulic system in both conditions,the result shows that there exists great difference on system overshoot,settling time,os-cillation frequency and other aspects of the hydraulic system under this two conditions.To compensate system’s asymmetry characteristics,the PID static compensator control strategy is proposed on the basis of S7 300 PLC as the controller.This control strategy has been tested on the fatigue loading test rig,the test results show that using the static PID compensation strategy can greatly improve the response speed and accuracy of the system.关键词
非对称液压缸/动静态特性/S7 300 PLC/PID静态补偿控制/试验验证Key words
asymmetric hydraulic cylinder/dynamic and static characteristics/S7 300 PLC/PID static compensation control/test分类
信息技术与安全科学引用本文复制引用
余祖耀,陈壮..基于S7300的比例阀控液压缸的PID静态补偿控制[J].机械与电子,2016,34(4):43-46,50,5.
