双容水箱液位DMC-PID串级控制仿真研究  

Simulated Research on DMC-PID Cascade Level Control for Dual Vessel Water Tank

作　　者：周荣强[1] 罗真[2] 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047 [2]独山子石化公司,新疆独山子833600

出　　处：《自动化仪表》2011年第10期63-65,共3页Process Automation Instrumentation

摘　　要：双容水箱作为工业过程控制中常见的被控对象,其液位控制具有大惯性滞后、系统参数时变的特点,且经常受到来自外界水压频繁波动的干扰,常规算法很难对其进行控制。对此,采用动态矩阵控制(DMC)与PID控制相结合的DMC-PID控制方案,使被控系统具有良好的动态调节品质和很强的鲁棒性。Matlab仿真结果表明,该串级控制系统取得了较为理想的控制效果,满足控制要求,具有较好的实用价值。Dual vessel water tank is one of the common controlled objects in industrial process control area,the level control for such tank features large inertial lag and time-varying system parameters;conventional algorithm is difficult to control because it is often disturbed by frequent fluctuation of exterior water pressure.Therefore,by using compound control strategy of DMC-PID,i.e.,the combined dynamic matrix control（DMC） and PID control,to make the controlled system with excellent dynamic regulation quality and high robustness.The result of Matlab simulation indicates that this cascade control system obtains ideal control effects and meets control requirement,it possesses better practical applicable values.

关 键 词：双容水箱 DMC-PID 工业控制 串级控制 Matlab 鲁棒性 

分 类 号：TP273.1[自动化与计算机技术—检测技术与自动化装置]