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首页> 外文期刊>Journal of Dynamic Systems, Measurement, and Control >Active Control of Fluid Pressure Pulsation in Hydraulic Pipe System by Bilateral-Overflow of Piezoelectric Direct-Drive Slide Valve
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Active Control of Fluid Pressure Pulsation in Hydraulic Pipe System by Bilateral-Overflow of Piezoelectric Direct-Drive Slide Valve

机译：压电直接驱动滑阀双向溢流对液压管路系统中的液压脉动进行主动控制

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摘要

In this paper, a novel active control of fluid pressure pulsation (ACFPP) is proposed, which meets the need of the high-pressure and high-speed hydraulic pipe system. A piezoelectric direct-drive slide valve (PDDSV) is designed and used as the active vibration absorber. Two ports of the PDDSV both connect to a bypass near the pump outlet and the other two ports both connect to the oil tank. By the bilateral-overflow through the shoulder of the PDDSV, the overflow wave generated in one cycle of spool motion can cancel two cycles of flow ripple. An adaptive-optimum control method based on the rotate-vector optimization method (RVOM) is adopted to adjust the control parameters in order to minimize the amplitude of the pressure pulsation. The biggest advantage of the proposed ACFPP is that it can eliminate the pressure pulsation when PDDSV only works at half of the pressure pulsation's frequency. The simulation and experimentation both verify the proposed ACFPP. By the proposed ACFPP, the suppression for the single-frequency component and dual-frequency components of the pressure pulsation have been both realized.
机译：本文提出了一种新颖的液压脉动主动控制（ACFPP），以满足高压，高速液压管路系统的需求。设计了压电直接驱动滑阀（PDDSV）并将其用作主动减振器。 PDDSV的两个端口都连接到泵出口附近的旁路，另外两个端口都连接到油箱。通过PDDSV肩部的双向溢流，在一个阀芯运动周期中产生的溢流波可以抵消两个周期的流量波动。为了使压力脉动的振幅最小，采用基于旋转矢量最优化方法（RVOM）的自适应最优控制方法来调整控制参数。提出的ACFPP的最大优点是，当PDDSV仅以压力脉动频率的一半工作时，它可以消除压力脉动。仿真和实验均验证了提出的ACFPP。通过提出的ACFPP，已经实现了对压力脉动的单频分量和双频分量的抑制。

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