应用科学学报 ›› 1990, Vol. 8 ›› Issue (3): 232-240.

• 论文 • 上一篇    下一篇

卡尔曼滤波器用于液压伺服系统中非线性参数的推定

贾莲凤1, 陈雪瑞1, 胡纯怀1, 箱守京次郎2   

  1. 1. 太原工业大学;
    2. 日本东北大学
  • 收稿日期:1988-02-09 修回日期:1989-07-22 出版日期:1990-09-30 发布日期:1990-09-30

ESTIMATION OF NONLINEAR PARAMETERS OF HYDRAULIC SERVO SYSTEM BY USING KÄLMAN FILTER

JIA LIANFENG1, CHEN XUERUI1, HU CHUNHUAI1, KYOJIRO HAKOMORI2   

  1. 1. Taiyuan Institute of Technology;
    2. Tohoku University, Japan
  • Received:1988-02-09 Revised:1989-07-22 Online:1990-09-30 Published:1990-09-30

摘要: 从现代控制理论的观点出发,用卡尔曼滤波器的方法,把系统中的夫知参数作为未知状态来估计,对微机控制的液压伺服系统建立了含有非线性参数的线性动态数学模型.并利用系统连续微分方程和实验系统中差分方程的参数之间的关系,定量地推导出液压伺服系统中不可忽略的非线性因素:伺服阀滑间流量增益系数、压力流量系数以及干扰力矩.

Abstract: For the high accuracy action of a hydraulic servo system, a linear dynamic model of the system including nonlinear elements is derived by using the Kälman filtering technique. Based upon the model derived, the flow gains to the displacement of the spool and to the load pressure of the servo valve, and the external torque are estimated.