液压驱动的大惯性负载加减速特性研究

›› 2002, Vol. 38 ›› Issue (10): 46-49.

液压驱动的大惯性负载加减速特性研究

顾临怡;王庆丰;路甬祥

浙江大学流体传动及控制国家重点实验室

发布日期:2002-10-15

RESEARCH ON ACCELERATION AND DECELERATION CHARACTERISTIC FOR HIGH INERTIA LOADS DRIVEN BY HYDRAULIC

Gu Linyi;Wang Qingfeng;Lu Yongxiang

Zhejiang University

Published:2002-10-15

摘要/Abstract

摘要： 大惯性负载加减速过程的平稳性问题严重影响了阀控系统的动态特性。为此，在采用进、出口节流协调控制的阀控单元基础上，提出了对大惯性负载加减速过程采用分段控制，并在执行器转速接近设定值时采用基于参数在线估计的状态反馈控制，以保证执行器转速控制精度和动态过程的平稳性；同时提出了在减速及制动过程中对出油侧压力进行控制的方法。试验表明，采用上述控制方法可兼顾大惯性负载加减速过程的快速平稳性与执行器转速的稳态精度。

关键词: 大惯性负载, 分段控制, 加减速特性, 进;出口节流协调控制

Abstract: The smoothness of acceleration and deceleration process is a serious problem in valve control system with high inertia loads. The meter-in and meter-out independent regulating valve control unit is applied. Based on this unit, a grading control algorithm in dynamic process of high inertia loads is put forward. After the velocity approaches its command, a state feedback control algorithm based on parameters on line esti-mating is employed to guarantee both its velocity accuracy and the smoothness of dynamic process. Experiments show that the actuator’s velocity could increase or decrease to its command accurately, smoothly and rapidly after the above unit and algo-rithms are applied.

Key words: Acceleration and deceleration performance Meter-in and meter-out independent regulating Grading control, High inertia loads

中图分类号:

TH137

顾临怡;王庆丰;路甬祥. 液压驱动的大惯性负载加减速特性研究[J]. , 2002, 38(10): 46-49.

Gu Linyi;Wang Qingfeng;Lu Yongxiang. RESEARCH ON ACCELERATION AND DECELERATION CHARACTERISTIC FOR HIGH INERTIA LOADS DRIVEN BY HYDRAULIC[J]. , 2002, 38(10): 46-49.

[1]	秦华伟;顾临怡;陈鹰. 基于开关液压源的大惯性负载速度控制系统[J]. , 2004, 40(9): 106-110.
[2]	王庆丰;顾临怡;路甬祥. 基于压差传感的电液进、出口节流独立调节原理及控制特性研究[J]. , 2001, 37(4): 21-24.