伺服阀控液压马达系统的参数模型辨识  

Parameter Model Identification of Hydraulic Servo Valve-controlled Motor System

作　　者：孔祥臻[1] 于刚[2] 蒋守勇[3] 

机构地区：[1]山东交通学院工程机械系,山东济南250023 [2]怀特(中国)驱动产品有限公司,江苏镇江212021 [3]煤炭工业济南设计研究院有限公司,山东济南250031

出　　处：《机床与液压》2008年第12期105-106,共2页Machine Tool & Hydraulics

摘　　要：在对液压控制系统进行建模过程中,由于液压伺服系统普遍存在非线性,使用传统的机理建模方法就难以建立准确的数学模型,也就不能准确地反应系统实际情况。而过程的输入输出数据一般都是可以测量的,且过程的动态特性必然表现在实验结果数据之中,因此可通过系统辨识的方法,利用这些数据建立对象的数学模型。本文作者确定出模型的结构,然后利用最小二乘法辨识出了阀控马达系统参数模型,仿真证明此模型是比较精确的。In the process of development of the model for the hydraulic control system, the precise mathematic model is hard to be developed with conventional Mechanism Analysis Method because of the non-linear factors of the hydraulic servo system which still have not been solved well. Generally, the input and output data of system can be observed which include dynamic characteristic of the process. Therefore, the mathematic model can be developed with system identification method. The model structure was presented, and parameter model of hydraulic servo valve-controlled motor system was identified by use of least square method, the simulation results show the model is accurate.

关 键 词：伺眼阀控马达 参数模型 最小二乘法 辨识 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]