最优脉动阀控理论在低转速五柱塞径向数字泵中的应用  

Application of Optimal Pulsation Valve Control Theory in Low Speed Five Plunger Radial Digital Pump

作　　者：卢红情 郁立成 施光林[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《机电一体化》2019年第6期48-55,共8页Mechatronics

基　　金：国家自然科学基金资助项目(51475285)。

摘　　要：在泵的输出流量控制中,数字变量泵是一种很好的选择,在低转速工作状态下,通过阀的开关切换可以实现泵的输出流量控制。为了使波动最小化,对径向柱塞泵的流量规律和阀控开关进行分析建模,提出了一种最优脉动阀控理论。与传统的顺序法、局部法和PWM方法相比,仿真结果表明最优脉动法具有最小的流量波动,且保持更低的开关频率。In the output flow control of the pump,the digital variable pump is a good choice. Under the low speed working state,the output flow control of the pump can be realized through the switching of the valves. In order to minimize the fluctuation,the flow law of the radial piston pump and the control method of valves are analyzed and modeled,and an optimal pulsation valve control theory is proposed. Compared with the traditional sequential method,partial method and PWM method,the simulation results show that the optimal pulsation method has the smallest flow fluctuation and keeps the switching frequency lower.

关 键 词：数字泵 控制方法 最优脉动 低转速 

分 类 号：TH38[机械工程—机械制造及自动化]