文献类型：期刊文献

中文题名：基于PCS7的蒸发器控制优化和抗干扰策略设计

英文题名：Design of Evaporator Control Optimization and Anti-interference Strategy Based on PCS7

作者：钱琳琳[1];张福贵[1];王德政[2]

第一作者：钱琳琳

机构：[1]北京联合大学城市轨道交通与物流学院,北京100101;[2]重庆工程学院大数据与人工智能学院,重庆400056

第一机构：北京联合大学城市轨道交通与物流学院

年份：2021

卷号：40

期号：8

起止页码：52-56

中文期刊名：实验室研究与探索

外文期刊名：Research and Exploration In Laboratory

收录：CSTPCD;;北大核心:【北大核心2020】；

基金：北京联合大学横向课题(11102JA1709,11102JA1715)。

语种：中文

中文关键词：蒸发器;过程控制系统;流程优化;干扰抵消法

外文关键词：evaporator;process control system;process optimization;interference offset method

摘要：根据工艺流程和控制要求,以具有初始开度的改进式PID控制算法设计了蒸发器的控制器,对各个变量进行控制,通过控制手段确保快速开车,以提高产量与过热蒸汽用量的比值;优化开车流程,在升温提升组分的过程中“自然”降低液位,并全程保持低液位运行,以降低过热蒸汽用量;“干扰抵消法”克服产量提升过程中对蒸发器温度的严重冲击,保证平稳开车。使用西门子PCS7过程控制系统平台和综合多功能过程控制实训装置(SMPT1000)实施了上述优化方案和抗干扰策略,各被控变量的稳态指标和动态指标都远超用户控制要求。
According to the process flow and control requirements,the control loops of each evaporator variable are designed with core algorithm which is an improved PID control algorithm with initial valve opening.The control can ensure fast start-up,increase the ratio of output to the amount of superheated steam.Optimization of the start-up process mainly includes“natural”lowering of the liquid level during the process of heating up and increasing the concentration and keeping the liquid level low throughout the operation to reduce the amount of superheated steam.The interference offset method can overcome the severe impact on evaporator temperature during the process of increasing production and ensure the smooth starting process.The above optimization scheme and anti-interference strategy are implemented in Siemens process control system(PCS7)platform and multifunction process training equipment(SMPT1000).The results show that the steady state and dynamic indexes of each controlled variable far exceed the user control requirements.