基于状态反馈的二阶液位系统最优控制方案研究  

Research on the Optimal Control Plan for the Second-order Fluid Level System Based on State Feedback

作　　者：同长虹[1] 蒋兴加[2] TONG Chang-hong;JIANG Xing-jia(Institute of Mechanical Detection and Fault Diagnosis,Lanzhou City University,Lanzhou Gansu 730070;Department of Electrical Engineering,Guangxi Technological College of Machinery and Electricity,Nanning Guangxi530007)

机构地区：[1]兰州城市学院机械检测与故障诊断研究所,甘肃兰州730070 [2]广西机电职业技术学院电气工程系,广西南宁530007

出　　处：《甘肃高师学报》2021年第5期28-31,共4页Journal of Gansu Normal Colleges

基　　金：甘肃省自然科学基金资助项目“用于原油管道检漏与清理的机器人总体设计与运动行为分析”(2020-0405-JCC-0733).

摘　　要：针对二阶液位系统具有时变、滞后和非线性的特点,以及传统的PID控制不能满足系统高性能控制要求的问题,基于现代控制理论的状态空间分析法,采用极点配置设计和最优控制理论所得到的稳态和动态性能指标得到显著改善,并通过应用MATLAB对系统的稳态性能和动态性能指标与传统PID控制、串级PID进行仿真分析,证明基于状态反馈的最优控制方法在二阶液位控制系统中具有很好的应用效果.Aiming at the characteristics of the second-order level system with time-varying, hysteresis and nonlinearity, and the question that traditional PID control can not meet the requirements of high-performance, the steady-state and dynamic performance indexes obtained by using pole assignment design and optimal control theory have been significantly improved based on the state space analysis method of modern control theory. By using MATLAB to simulate and analyze the steady-state performance and dynamic performance indexes of the system with traditional PID control and cascade PID, it is proved that the optimal control method based on state feedback has a good application effect in the second-order liquid level control system.

关 键 词：二阶液位系统 状态反馈 串级PID控制 极点配置设计 最优控制 

分 类 号：TN86[电子电信—信息与通信工程]