机械设备电液驱动自动控制系统  

Electro-hydraulic Drive Automatic Control System for Machinery and Equipment

作　　者：靳向东 Jin Xiangdong(Tianji Coal Chemical Group Co.,Ltd.,Changzhi Shanxi 047507)

机构地区：[1]天脊煤化工集团股份有限公司成品包装厂党支部,山西长治047507

出　　处：《机械管理开发》2022年第12期229-231,共3页Mechanical Management and Development

摘　　要：针对观测噪声和控制对象随机扰动的机械设备电液驱动自动控制系统,建立了作为自动控制对象的机械设备电液驱动工作过程的数学模型。该数学模型包括描述液压马达驱动动力部分和调节泵工作容积过程的线性动态环节。根据分离方法,将随机线性最优系统的综合任务的求解分为最优滤波器的综合任务和最优系统的确定性综合任务。在最优线性控制器的设计中,采用了动态规划的方法,对自动控制系统的动态特性进行了研究,分析了不同驱动参数下角位移和角速度的过渡过程。结合设备的工艺特点,对最佳传递系数的选择提出了建议。For an electro-hydraulic drive automatic control system of mechanical equipment with observation noise and random disturbance of the control object,a mathematical model of the electro-hydraulic drive working process of mechanical equipment as an automatic control object is established for this purpose.The mathematical model includes a linear dynamic link describing the driving power part of the hydraulic motor and the process of regulating the working volume of the pump.According to the separation method,the solution of the synthesis task of the stochastic linear optimal system is divided into the synthesis task of the optimal filter and the deterministic synthesis task of the optimal system.In the design of the optimal linear controller,the method of dynamic programming is used.The dynamic characteristics of the automatic control system are investigated and the transition processes of angular displacement and angular velocity with different drive parameters are analysed.In combination with the process characteristics of the equipment,recommendations are made for the selection of the optimum transfer coefficient.

关 键 词：电动液压驱动 数学模型 传递函数 随机扰动 

分 类 号：TD355[矿业工程—矿井建设]