基于SMPT-1000的液位控制系统设计

基于SMPT-1000的液位控制系统设计作者：指导教师：苏州市职业大学电子信息工程学院2013年5月摘要SMPT-1000是一款将全数字仿真技术与实物外观模拟装置相结合，集多种实验功能于一体的仿真实验装置，此装置由硬件、软件两大部分构成，软、硬件之间通过小型实时数据库和实时数字通信机制协调运行，完成过程模拟。SMPT-1000仿真模拟果汁生产果浆的一套实验装置，是采用4~20mA的电流信号模拟现场的一些真实的物理量，此最大的特点是方便理论的操纵验证。SMPT-1000模拟由锅炉和蒸发器组成的水汽热能全流程，可拆分成非线性储罐与离心泵单元、动力除氧单元、高阶换热单元、加热炉单元、锅炉单元、蒸发器单元，提供由简到难的各个层次的过程控制被控变量。SMPT-1000仿真生产装置包括五个生产工艺流程，本文主要通过对的第一环节对象，除氧器做详细的说明，以此来说明这套装置的作用，以及多种控制方案的选用。关键词：SMPT-1000仿真装置电流信号除氧器控制方案AbstractSMPT-1000isafulldigitalsimulationandphysicalsimulationdevicecombination，Thesimulationexperimentdevicesetinavarietyofexperimentalfunctions，Thisdeviceconsistsofhardware,softwaretwoparts.Thesoft,hardwarethroughthecoordinatedoperationofsmallreal-timedatabaseandreal-timedigitalcommunicationmechanism,processsimulation.SMPT-1000simulationofanexperimentaldeviceofjuiceproductionoffruitjuice,issomerealphysicalquantityofcurrentsignalusing4~20mAsimulationsofthesite,thebiggestfeatureistheeasymanipulationtoverifytheory.SMPT-1000simulationofthewholeprocessiscomposedofboilerandtheevaporatorvaporheatenergy,canbedividedintononlineartankwithcentrifugalpumpunit,powerdeoxidizationunit,highorderheatexchangeunit,heatingunit,boilerunit,evaporatorunit,fromsimpletodifficultatalllevelsoftheprocesscontrolthecontrolledvariable.SMPT-1000simulationofaproductiondevicecomprisesfiveproductionprocess,thispapermainlythroughthefirststepofthedeaerator,detaileddescription,inordertoexplaintheroleofdevice,andavarietyofcontrolscheme.Keywords：SMPT-1000currentsignalsimulationdeviceDeaeratorControlScheme目录目录摘要..........................................................................................................................................................i第1章SMPT-1000硬件概述................................................................................................................11.1SMPT-1000硬件.....................................................................................................................11.1.1SMPT-1000的硬件组成.............................................................................................11.1.2小锅的测量器和变送器.............................................................................................31.1.3SMPT-1000的执行器..................................................................................................3第2章SMPT-1000软件概述................................................................................................................42.1SMPT-1000软件组成.............................................................................................................42.1.1上位机软件SMPTLAB的功能.....................................................................................52.1.2实时仿真引擎软件SMPTRuntime的功能..............................................................5第3章除氧器简单介绍........................................................................................................................63.1除氧器.....................................................................................................................................63.1.1除氧器作用....................................................................................................................63.1.2除氧器结构....................................................................................................................63.1.3除氧器原理....................................................................................................................6第4章除氧器液位控制系统设计.......................................................................................................74.1除氧系统工艺流程................................................................................................................74.2选择被控变量确定操纵变量................................................................................................74.3调节阀的选择.........................................................................................................................84.4控制方案设计.........................................................................................................................84.4.1单回路控制系统.........................................................................................................84.4.2串级控制系统..........................................................................................................144.4.3前馈-反馈控制系统.................................................................................................154.4.4前馈-串级控制系统.................................................................................................174.4.5均匀控制系统..........................................................................................................18参考文献..........................................................................................................................................20致谢..................................................................................................................................................21基于SMPT-1000的液位控制系统设计1第1章SMPT-1000硬件概述1.1SMPT-1000硬件1.1.1SMPT-1000的硬件组成SMPT-1000按实际比例比例缩小的流程设备模型，是集多种实验功能于一体的仿真实验装置。SMPT-1000硬件主要包括设备