高速开关阀直控式闭环液压同步系统  

Hydraulic Closed-loop Synchronous System Which is Directly Controlled by High-speed On-off Valve

作　　者：何谦[1] 刘忠[1] 

机构地区：[1]湖南师范大学机电技术装备研究所,湖南长沙410081

出　　处：《制造技术与机床》2010年第7期114-116,共3页Manufacturing Technology & Machine Tool

基　　金：2008年湖南省高等学校科研资助重点项目:大功率机械臂电液驱动系统设计;建模与控制(08A047)

摘　　要：针对液压同步系统不同的流量要求,采用高速开关阀直接控制的方式,设计了两组共三种闭环控制回路。考虑到结构的差异,分别采用脉宽调制(PWM)、脉码调制(PCM)以及复合脉宽的控制方式,结构简单,便于集成,能够实现较高精度的同步控制。Aiming at the different current capacity requirements of hydraulic synchronous system,using direct control mode by high-speed on-off valve,two groups and altogether three kinds of closed-loop control hydraulic route have been designed.Considering the difference of their structure,Pulse Width Modulation（PWM）,Pulse Code Modulation（PCM）and Compound Pulse Width Modulation have been chosen separately as their control mode.Each of them has simple structure and easy to integrate,and the high-precision synchronous control can be achieved at the same time.

关 键 词：高速开关阀 闭环同步控制 区分流量设计 

分 类 号：TH137.7[机械工程—机械制造及自动化]