CAJ | 학술논문

针对塔底温度存在的大滞后、大惯性时间常数难以控制的特点，论文将DM C算法引入到精馏过程中，以DCS为平台，提出了以DM C算法与PID控制相结合的串级控制系统，并设计了在DCS系统中如何实施的具体方案。最后通过仿真研究表明，这种方案使控制系统具有更快的响应速度和良好的调节性能，提高了系统的动静态性能指标，其总体性能明显优于PID-PID串级控制系统。
침대탑저온도존재적대체후、대관성시간상수난이공제적특점，논문장DM C산법인입도정류과정중，이DCS위평태，제출료이DM C산법여PID공제상결합적천급공제계통，병설계료재DCS계통중여하실시적구체방안。최후통과방진연구표명，저충방안사공제계통구유경쾌적향응속도화량호적조절성능，제고료계통적동정태성능지표，기총체성능명현우우PID-PID천급공제계통。
For the distillation tower temperature with large inertial ,time-delay and uncertain model ,a control system based on DMC-PID cascade control is proposed .Based on DCS ,DMC algorithm is introduced to the distillation process .Im-plementation scheme is designed in the DCS system .Then it verifies that the control strategy of dynamic matrix control asso-ciated with PID cascade control not only keeps a faster response and excellent adjustment ability ,but also enhances the dy-namic and static performances of the system by the simulation result .The overall performance of DMC-PID bunches control system is superior to that of PID-PID cascade control system .