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Design and Simulation of Hierarchical Control of Two Continuous Stirred Tank Heater in Series

机译:串联式两个连续搅拌釜加热器分级控制的设计与仿真

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Background/Objectives: The present investigation was carried out to study the application of process control hierarchy to design an optimal control system for a two continuous stirred tank heaters in series (2-CSTHs). Methods/Statistical Analysis: The optimal control strategy of the 2-CSTHs is designed in a hierarchy of three level structures which employs optimization in the real-time optimization (RTO) control level, feedback control scheme in the regulating control level and sensors, pumps and control valves in the measurement and actuation level. All these levels should be coordinated and require information transfer. The proposed optimal control system of the 2-CSTHs was simulated using MATLAB/ SIMULINK and HYSYS. Findings: The simulation results show that the PID feedback closed-loop of the 2-CSTHs for level and temperature controllers are able to achieve satisfactory performance for servo and regulating control. Simulation on the RTO algorithm also yields results which indicate that the non-derivative technique is an efficient algorithm in minimizing the square of tracking error of temperature in both tanks of the 2-CSTHs. Application/Improvements: The non-derivative algorithm has the advantage over other algorithms in the family of ISOPE algorithm for not requiring process derivatives which make it attractive for industrial applications.
机译:背景/目的:进行本研究以研究过程控制层次结构的应用,以设计用于两个串联的连续搅拌釜式加热器(2-CSTH)的最佳控制系统。方法/统计分析:2-CSTH的最佳控制策略是在三级结构的层次结构中设计的,该三级结构在实时优化(RTO)控制级中采用优化,在调节控制级中采用反馈控制方案,并使用传感器,泵和控制阀处于测量和执行级别。所有这些级别都应进行协调,并要求信息传递。利用MATLAB / SIMULINK和HYSYS对所提出的2-CSTH的最优控制系统进行了仿真。结果:仿真结果表明,液位和温度控制器的2-CSTH的PID反馈闭环能够实现令人满意的伺服和调节控制性能。对RTO算法的仿真也得出结果,表明非导数技术是一种有效的算法,可以最小化2-CSTH的两个储罐中温度的跟踪误差平方。应用/改进:非导数算法相对于ISOPE算法家族中的其他算法具有优势,因为它不需要过程导数,这使其在工业应用中具有吸引力。

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