摘要
介绍了比例阀控非对称液压缸位置控制系统的组成及原理,重新定义了负载压力和负载流量,推导出系统的数学模型,并利用Matlab进行了仿真分析,设计了PID控制器对系统进行校正,结果表明系统模型正确,校正后的系统比校正前有更高的精度和更好的稳定性。
The paper introduces the composition and principle of proportional valve asymmetric hydraulic cylinder position control system,re-defines the load pressure and flow,derives the system mathematical model,conducts simulation analysis with Matlab and calibrates the system via the designed PID controller.The results show that the system model is correct,and has higher accuracy and better stability after the calibration.
出处
《起重运输机械》
2011年第11期35-39,共5页
Hoisting and Conveying Machinery
关键词
电液比例阀
非对称液压缸
数学模型
PID控制
electro-hydraulic proportional valve
asymmetric hydraulic cylinder
mathematical model
PID control
