压缩机气量无级调节系统中电液执行器的仿真设计  

Simulation Design of Fast Electro-Hydraulic Actuator for Compressor Capacity Regulation System

作　　者：计洪旭 王灵德 纪燕飞[1] 朱旭[2] 

机构地区：[1]天华化工机械及自动化研究设计院有限公司 [2]浙江大学流体传动及控制国家重点试验室

出　　处：《化工机械》2013年第1期68-70,131,共4页Chemical Engineering & Machinery

摘　　要：针对高速开关阀流量限制导致单级高速开关阀驱动的电液执行器响应速度慢的问题,在对应用于活塞式压缩机气量无级调节系统中的高频响电液执行器进行性能分析的基础上,提出了高速开关阀作为先导阀、二级机械阀作为配流阀的串级控制方案,建立数学模型,并进行仿真,其仿真结果证明,电液执行器的响应时间可以满足实际工况的要求,并且由于采用两级液压放大,电液执行器的驱动能力明显增加,可以广泛的应用于压力高、流量大的压缩机工况。Regarding slow response of electro-hydraulic actuator caused by flow restrictions of the high-speed switch valve,and basing on analyzing the performance of electro-hydraulic actuator in piston compressor capacity regulation system,the cascade control scheme of taking high-speed on/off valve as the pilot valve and a secondary valve as the distributing valve was presented and simulated,including the establishment of mathematical model.The results show that the electro-hydraulic actuator＇s response speed can meet practical working conditions;and the two-stage hydraulic enlargement can promote driving capability of the electro-hydraulic actuator significantly,and this can be applied to the compressors with high pressure and large flow.

关 键 词：压缩机 电液执行器 高速开关阀 流量 二级机械阀 响应时间 

分 类 号：TQ051.21[化学工程]