信号重构的变转速液压系统恒压控制性能研究

杨彬; 谷立臣; 陈萌; 吴振松; 刘永

doi:10.13433/j.cnki.1003-8728.2016.0712

信号重构的变转速液压系统恒压控制性能研究

doi: 10.13433/j.cnki.1003-8728.2016.0712

杨彬¹,
谷立臣^2, ,,
陈萌¹,
吴振松¹,
刘永^1,3

1.
长安大学工程机械学院, 西安 710064;
2.
西安建筑科技大学机电工程学院, 西安 710054;
3.
湖北汽车工业学院机械工程学院, 湖北十堰 442002

基金项目:

国家自然科学基金项目（51275375）与国家自然科学基金青年基金项目（51509006，51305326）资助

详细信息

作者简介:
杨彬(1992-),硕士研究生,研究方向为机电液一体化技术,chdsy_yb@163.com

通讯作者:
谷立臣(联系人),教授,博士,gulichen@126.com

计量
- 文章访问数: 167
- HTML全文浏览量: 40
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2014-03-03
- 刊出日期: 2016-07-05

Exploring Constant Pressure Control Performance for Variable Speed Hydraulic System based on Signal Reconstruction

Yang Bin¹,
Gu Lichen^{2
, ,},
Chen Meng¹,
Wu Zhensong¹,
Liu Yong^1,3

1.
School of Construction Machinery, Chang'an University, Xi'an 710064, China;
2.
School of Mechanical and Electronic Engineering, Xi'an University of Architecture and Technology, Xi'an 710054, China;
3.
School of Mechanical Engineering, Hubei Automotive Industries Institute, Hubei Shiyan 442002, China

摘要

摘要: 为消除干扰信号对于变转速液压系统恒压控制性能的影响，提高系统的控制精度，对压力反馈信号进行了预处理。利用多分辨率分析分解反馈信号、剥离干扰信号成份，重构信号。采用LabVIEW与MATLAB软件混合编程的方法，设计了压力信号重构的变转速恒压测控系统。通过实验对比分析了在PID控制系统中添加信号重构器前后对控制性能的影响。实验表明：对压力反馈信号进行分解与重构，能够在保持系统响应速度的基础上，减小恒压系统的稳态误差，降低压力波动，提高控制精度。
- 变转速液压系统 /
- 小波分析 /
- 压力信号重构 /
- 混合编程 /
- 恒压控制
Abstract: In order to eliminate the influence of interference signal on constant pressure control performance of a variable speed hydraulic system and improve its control accuracy, pressure feedback signal is preprocessed and reconstructed by using multi-resolution analysis to decompose the signal and strip interference signal components. The constant pressure measurement and control of variable speed hydraulic system based on signal reconstruction is designed by adopting the LabVIEW and MATLAB hybrid programming method. The impact before and after adding control signal reconstruction device performance in a PID control system is analyzed through comparative experiments. Experimental results show that, in addition to keeping the system's response speed, the pressure feedback signal decomposition and reconstruction can reduce steady-state errors of the constant pressure system and pressure fluctuation, thus improving control accuracy.
- variable speed hydraulic system /
- wavelet analysis /
- pressure signal reconstruction /
- hybrid programming /
- constant pressure control

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