Lecture 1: Introduction to Process Control

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Presentation transcript:

Lecture 1: Introduction to Process Control Process Control and dynamics Lecture 1: Introduction to Process Control Dr. –Ing. Naveed Ramzan Department of Chemical Engineering, U.E.T. Lahore Pakistan 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Course Books Ch.E-411 PROCESS DYNAMICS AND CONTROL Introduction & significance of control; Feedback& feed forward control; Design & Hardware elements of control; Dynamics of first & second order systems; Overall transfer function testability; Controllers (P, PI, PID etc) & final control elements; Representation of control systems; Multiple control loops; cascade, ratio, over-riding etc. Introduction to stability of chemical processes; introduction to frequency response techniques; Routh's criteria, Bode plots, Nyquit method; Computer control, Introduction to Distributed Control Systems; Case study: Development of control scheme of complete plant. 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Tentative Schedule Introduction & significance of control; Ch.E-411 PROCESS DYNAMICS AND CONTROL Weeks Book Chapter Introduction & significance of control; Feedback& feed forward control; 1-2 1 1,2,3,13 Design & Hardware elements of control; Dynamics of first & second order systems; 2-3 1(2) 10,11(5,6,8) Overall transfer function testability; Controllers (P, PI, PID etc) & 3-4 1(2) 14,15,16 (9.10.11.14.22) Final control elements Representation of control systems; Multiple control loops;cascade,ratio,over-riding etc. 1 Introduction to stability of chemical processes; introduction to frequency response techniques; 2-3 1 15,17,18 Routh's criteria, Bode plots, Nyquit method; Computer control, 1 Introduction to Distributed Control Systems; 1 Case study: Development of control scheme of complete plant. 1 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Contact Hours Section A Monday : 3-4 Thursday : 2 Section B Tuesday 3-4, 5 KSK Campus Friday 1-3 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Introduction to Process Control 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Introduction to Process Control Today is the era of information Information that motivates the technological innovation Challenge -- Need to develop a vision for the future 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Introduction to Process Control 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

What does a feedback system do? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

What does a feedback system do? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

What does a feedback system do? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

What does a feedback system do? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

What does a feedback system do? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Basic Concept feedback system 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Examples of feedback system 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Examples of feedback system 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Examples of feedback system 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Examples of feedback system 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Examples of feedback system 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

What does a feedback system do? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Suppressing the influence of external disturbances Ensuring the stability of a chemical process Optimizing the performance of a chemical process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Suppressing the influence of external disturbances 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Suppressing the influence of external disturbances Disturbances? 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Suppressing the influence of external disturbances 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Ensuring the stability of a chemical process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Ensuring the stability of a chemical process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Ensuring the stability of a chemical process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Incentives for Chemical Process Control Why is Control Necessary? Incentives for Chemical Process Control Optimizing the performance of a chemical process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Home Work-1 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

??? Questions 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Lecture 2: Design Aspects of a Process Control System Instrumentation and Process Control Lecture 2: Design Aspects of a Process Control System Dr. –Ing. Naveed Ramzan Department of Chemical Engineering, U.E.T. Lahore Pakistan 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Classification of Variables in a Chemical Process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Example Classification of Variables in a Chemical Process 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Design Elements of a Control System 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Design Elements of a Control System 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Primary Measurements Design Elements of a Control System 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Secondary Measurements Unmeasured output=ƒ(Secondary measurements) Design Elements of a Control System Secondary Measurements Unmeasured output=ƒ(Secondary measurements) 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Direct Measurements of external disturbances Design Elements of a Control System Direct Measurements of external disturbances 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Design Elements of a Control System 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

A control configuration is the information Design Elements of a Control System A control configuration is the information structure that is used to connect the available measurements to the available manipulated variables. 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Same information flows to different manipulated variables Design Elements of a Control System Same information flows to different manipulated variables 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Same manipulated variables but different measurements Design Elements of a Control System Same manipulated variables but different measurements 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

General Control Configurations Design Elements of a Control System General Control Configurations Feedback control configuration Feedforward control configuration 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

General Control Configurations Design Elements of a Control System General Control Configurations Inferential control configuration 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

General Control Configurations Design Elements of a Control System General Control Configurations --- Single input , Single output (SISO) --- Multiple input , Multiple output (MIMO) 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Design Elements of a Control System --- Proportional Control --- Derivative Control --- Integral Control --- Proportional Integral Control --- Proportional Integral Derivative Control 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Hardware for a process Control System --- Chemical Process --- Measurement Instruments or sensors --- Transducers --- Transmission lines --- The Controller --- The Final Control Element --- Recording Elements 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Hardware for a process Control System 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

??? Questions 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›

Lecture 3: Dynamic behaviour of first order system Instrumentation and Process Control Lecture 3: Dynamic behaviour of first order system Dr. –Ing. Naveed Ramzan Department of Chemical Engineering, U.E.T. Lahore Pakistan 6. Februar 2008 / Dr. –Ing Naveed Ramzan ‹#›