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变转速轴向柱塞泵恒流量控制的建模与仿真
引用本文:郭初生,王向周,王渝.变转速轴向柱塞泵恒流量控制的建模与仿真[J].北京理工大学学报,2004,24(11):961-965.
作者姓名:郭初生  王向周  王渝
作者单位:北京理工大学,信息科学技术学院自动控制系,北京,100081
摘    要:以变输入转速下泵控马达恒速系统为对象,分析轴向柱塞泵变量控制机构的控制机制和斜盘变量机构力矩特性,建立了变输入转速情况下泵的流量控制模型,针对泵转速扰动提出了扰动乘积补偿和PI控制综合抑制方法.并在仿真软件EASY5上建立了泵控马达系统和变量泵排量控制仿真模型,对变量泵变量时间和转速扰动抑制进行了系列仿真.结果表明,在剧烈输入转速扰动和负载压力扰动下泵输出流量依然能保持恒定.

关 键 词:轴向柱塞泵  泵控马达系统  变量控制力矩  恒流量控制  增益乘积补偿  变转速  轴向柱塞泵  恒流量控制  建模与仿真  Speed  Input  Pump  Modeling  and  Simulation  Control  输出流量  压力扰动  负载  结果  扰动抑制  时间  变量泵  仿真模型  泵排量  仿真软件  抑制方法
文章编号:1001-0645(2004)11-0961-05
收稿时间:2003/11/25 0:00:00
修稿时间:2003年11月25日

Flow Control Modeling and Simulation of an Axial-Piston Pump with Time-Varying Input Speed
GUO Chu-sheng,WANG Xiang-zhou and WANG Yu.Flow Control Modeling and Simulation of an Axial-Piston Pump with Time-Varying Input Speed[J].Journal of Beijing Institute of Technology(Natural Science Edition),2004,24(11):961-965.
Authors:GUO Chu-sheng  WANG Xiang-zhou and WANG Yu
Institution:Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China;Department of Automatic Control, School of Information Science and Technology, Beijing Institute of Technology, Beijing100081, China
Abstract:Introduces the application of a pump controlled motor system, and expounds the flow control principle of axial-piston pump under time-varying input speed. Torque characteristics on swash plate of the axial piston pump is studied. Mathematic model for the flow control is derived for the pump running under a time-varying input speed. The control scheme which is a combination of pump input speed product compensation and closed loop PI controller is designed to constrain the speed disturbance. A simulation model of pump controlled motor system is established on the simulation software EASY5. Results of simulation showed that the displacement adjusting time of the pump agreed with the manufacturer's curve. The pump kept an invariable output flow under the long-range disturbance of time-varying input speed and (load pressure.)
Keywords:axial-piston pump  pump controlled motor system  control torque of swash plate  constant flow control  gain product compensation
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