平板型高速开关阀控制特性研究  

Study on the Control Characteristics of Plated-Type High-Speed On / Off Valve

作　　者：吴会刚 徐龙 韦文术 WU Huigang;XU Long;WEI Wenshu(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 101300,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京101300

出　　处：《机床与液压》2023年第22期196-201,共6页Machine Tool & Hydraulics

基　　金：天地科技股份有限公司科技创新创业资金专项项目(2021-TD-ZD010)。

摘　　要：为研究某型平板高速开关阀(HSV)的控制特性,探索其小电流驱动控制机制,描述开关阀的结构组成及工作机制,建立数学模型,并定性说明其静态压力控制特性;基于开源电磁分析软件FEMM建立电磁铁的有限元模型,获得电磁力及磁通密度在工作气隙与线圈电流坐标空间的分布规律;建立开关阀的机-电-液联合仿真模型,研究其静态压力控制特性,重点描述线圈电流、阀板位移、磁路电感、控制腔压力的动态响应过程,阐明该电磁阀实现小电流驱动控制的机制;最后,测试HSV静、动态性能进行对比验证。实测结果表明:仿真模型较好地刻画了平板高速开关阀的静、动态特性,阐明了小电流驱动的机制,可为低功耗产品开发提供重要参考与借鉴。In order to determine the control characteristics of a plate-typed high-speed on/off valve(HSV)and explore its lowcurrent driving control mechanism,the structure and operating principle of the on-off valve were described,and based on the estab⁃lished mathematical model,the static pressure control characteristic was qualitatively explained.By using of the open-source electro⁃magnetic analysis software FEMM,the finite element model of electromagnet was established,and the distributions law of electromag⁃netic force and magnetic flux density in working air gap and coil current coordinate space were obtained.Then,the co-simulation model of the on-off valve was established,the static pressure control characteristics was studied,and the dynamic responses of coil current,valve displacement,circuit inductance and chamber pressure were elaborately analyzed,the low-current driving control mechanism of HSV was expounded.Finally,the static and dynamic performance of HSV was tested and compared.The experimental results show that the established model can well describe the static and dynamic characteristics of the plated-type HSV,and the lowcurrent driving mechanism is well explained,which can provide good reference for further development of low-power HSV.

关 键 词：平板高速开关阀 电磁场有限元方法 驱动控制 多物理域联合仿真 

分 类 号：TH137.52[机械工程—机械制造及自动化]