摘要
间歇式反应釜惯性大、滞后大、慢时变,制冷与加热切换时非线性严重,采用传统PID控制很难满足性能要求.为此,基于递推最小二乘方法和广义预测控制原理,在北京亚控公司的组态王软件平台上,设计了一套简单实用的控制系统.在升温阶段采用传统PID控制;在60-70℃时的制冷加热切换阶段,采用广义预测控制,以解决严重非线性带来的振荡.实验结果表明,与传统的PID控制方案相比,该方案增强了系统的鲁棒性和适应性,系统振荡大幅度减少.
The intermittent type reaction vessel has great inertia and time-delaying as well as slow time-varying. When refrigerating and heating operations are switched, the furnace temperature changes rapidly with serious nonlinearity and the satisfied performances can＇t be obtained by the traditional PID control. Therefore, the least square method and the generalized predictive principle were employed, and a simple control system based on above theories was designed. Based on King View platform, the control strategy was presented where the traditional PID control was used at the stage of rising temperature and the generalized predictive control was applied at the stage of switching period to keep temperature balance. The experiment results indicate that the system strengthens the robustness and adaptability, and the comprehensive performances are improved.
出处
《沈阳工业大学学报》
EI
CAS
2007年第6期716-720,共5页
Journal of Shenyang University of Technology
关键词
间歇式反应釜
非线性
广义预测控制
递推最小二乘方法
组态王
intermittent type reaction vessel
nonlinearity
generalized predictive control
least square method
King View
