论文部分内容阅读
过程工业常见的连续搅拌釜式反应系统(CSTR)其内部化学反应不稳定,直接影响生产的安全和效率,控制比较复杂。为实现对CSTR的稳定控制,介绍了应用传统控制算法而设计的针对CSTR的控制策略并通过仿真实验验证其性能。传统控制算法具有实现简单、控制性能稳定的优点,为了适应CSTR化学反应的复杂性,本文灵活应用传统控制算法,严格控制反应物的进料时序,进而控制釜内反应的速度,实现CSTR的安全稳定性和生产效率可控制性。同时,利用西门子新一代工业可编程控制器——SIMATICPCS7 BOX作为控制器,在多功能过程控制仿真实验系统(MPCE-1000)上构建的CSTR仿真对象上实现稳定控制。仿真结果表明该控制策略在一定程度上能够适应CSTR的复杂反应。
The common continuous stirred tank reaction system (CSTR) in the process industry is unstable in its internal chemical reaction, which directly affects the safety and efficiency of production and the control is rather complicated. In order to realize the stable control of CSTR, the control strategy for CSTR with traditional control algorithm is introduced and its performance is verified through simulation. The traditional control algorithm has the advantages of simple realization and stable control performance. In order to adapt to the complexity of CSTR chemical reaction, this paper flexibly uses the traditional control algorithm, strictly controls the reactant feeding timing, and then controls the reaction speed in the autoclave to achieve the safety of CSTR Stability and productivity controllability. At the same time, the new generation industrial programmable logic controller of Siemens, SIMATICPCS7 BOX, is used as the controller to realize stable control on the CSTR simulation objects constructed on the multi-function process control simulation system (MPCE-1000). Simulation results show that this control strategy can adapt to the complex response of CSTR to some extent.