基于Smith补偿的喷雾干燥塔Fuzzy-PID控制算法  

Fuzzy-PID Control Algorithm of Spray Drying Tower based on Smith Compensation

作　　者：管丰年[1] GUAN Feng-nian(Weifang University,Weifang 261061,China)

机构地区：[1]潍坊学院,山东潍坊261061

出　　处：《潍坊学院学报》2018年第2期1-6,共6页Journal of Weifang University

摘　　要：针对喷雾干燥塔出口温度控制中的滞后时间大,干扰因素多,数学模型复杂的问题特点,基于Smith模型补偿,利用模糊(Fuzzy)推理规则,结合传统的PID算法,对其出口温度的控制进行了算法优化,实现PID参数的自适应调整。利用MATLAB建立控制系统仿真模型,并在不同扰动情况下进行仿真分析,结果表明,该控制算法使控制系统的响应速度加快、超调量减小,控制效果明显得到改善。Aiming at the characteristics on the lag time larger and the interference factors more and the mathematical model complex for temperature control of the spray drying tower, using the Smith compensation model and the fuzzy inference rule, combine with the conventional PID algorithm, the control of the outlet temperature is optimized, and the self-adaptive regulation of PID parameters is implemented. The simulation model of the control system is established by MATLAB. The results of simulation show that the control algorithm response faster, and the deviation is reduced, the control effect is improved obviously.

关 键 词：喷雾干燥塔 模糊控制 PID控制 Smith补偿 MATLAB仿真 

分 类 号：TM923[电气工程—电力电子与电力传动]