Home > Automation > Process Control

[ pdf ] Process Modeling Identification and Control

Process Modeling Identification and Control Download
Topic under  Process Control
Source: www.graco.unb.br 
File size: 1.22 MB
File type: pdf
Last download on: Mon Mar 20, 2017 10:09:18 PM
Short Desciption:
Models and dynamic characteristics of continuous processes, Jan Mikles Miroslav Fikar, This chapter serves as an introduction to process control. The aim is to show the necessity of process control and to emphasize its importance in industries and in design of modern technologies. Basic terms and problems of process control and modelling are explained on a simple example of heat exchanger control. Finally, a short history of development in process control is given.

1.1 Topics in Process Control Continuous technologies consist of unit processes, that are rationally arranged and connected in such a way that the desired product is obtained e ectively with certain inputs. The most important technological requirement is safety. The technology must satisfy the desired quantity and quality of the nal product, environmental claims, various technical and operational constraints, market requirements, etc. The operational conditions follow from minimum price and maximum pro t. Control system is the part of technology and in the framework of the whole technology which is a guarantee for satisfaction of the above given requirements. Control systems in the whole consist of technical devices and human factor. Control systems must satisfy  disturbance attenuation,  stability guarantee,  optimal process operation. Control is the purposeful in uence on a controlled object (process) that ensures the ful llment of the required objectives. In order to satisfy the safety and optimal operation of the technology and to meet product speci cations, technical, and other constraints, tasks and problems of control must be divided into a hierarchy of subtasks and subproblems with control of unit processes at the lowest level. The lowest control level may realise continuous-time control of some measured signals, for example to hold temperature at constant value. The second control level may perform static optimisation of the process so that optimal values of some signals ( ows, temperatures) are calculated in certain time instants. These will be set and remain constant till the next optimisation instant. The optimization may also be performed continuously. As the unit processes are connected, their operation is coordinated at the third level. The highest level is in fenced by market, resources, etc.
Bookmark or share this info on Google+ and leave comment at below :

Bookmark and Share

People who downloaded this also viewed in this sites:

D.J.DUNN. 1. INSTRUMENTATION AND CONTROL. TUTORIAL 1 CREATING MODELS OF ENGINEERING SYSTEMS. This tutorial is of interest to any student studying...

4-20mA Current Loop Primer
Introduction. This application note's primary goal is to provide an easy-to- understand primer for users who are not familiar with 4-20mA ......

Process Control System
Basic packages provide basic knowledge covering a wide range of technologies. Technology packages deal with the important topics of open and closed...

    Leave comment :
    "Process Modeling Identification and Control"



    Related Free Files

    Process Control Using Takagi-Sugeno Fuzzy... - Download: 237 times
    Introduction to Control Systems ... - Download: 498 times
    Process Training Control System... - Download: 343 times
    AStrategic Approach to Protecting SCADA and... - Download: 184 times
    Process Control Fundamentals... - Download: 1060 times
    INTRODUCTION TO PROCESS CONTROL... - Download: 287 times
    Introduction to Process Control... - Download: 243 times
    Design and Implementation of PLC-Based... - Download: 504 times
    Introduction to Process Control... - Download: 580 times

    eXTReMe Tracker