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Control Engineering

EMM 4423

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Lectures

References

(a) Hishamuddin Jamaluddin, Mohd Shafiek Yaacob and Robiah Ahmad,Introduction

to Control Engineering , 1st Edition, UTM Press, 2011

(b) N.S.Nise, Control System Engineering, 5th edition,John Wiley&Sons,Inc(c) R.C.Dirf and Bishop, Modern Control Systems.11th

edition,Pearson International Edition,2008.

(d) M.Gopal, Control Systems:Principle and Design, 3rd edition, McGraw-

Hill,2008

(e) K.Ogata,Modern Control Engineering, 3rd edition, Pretice Hall, 1997.

AssessmentTest 1 (20%)

Test 2 (20%)

Assignment / QUIZ / LAB(10%)

Final Examination (50%)

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Week 1 (Introduction)

Week 2-3 (Mathematical Modelling of dynamic systems)

Week 4 (Block drigram manipulation, signal flow graphs and

Masons rule, introduction to Matlab/Simulink)

Week 5 (Introduction to time response analysis)

Week 6 (Classification of control System, 1st and 2nd order

systems and performance of feedback control system)

Week7 (Steady state errors, final value theorem, controller

action(PID) and application of Matlab/Simulink)

Week 8 (Semester break)

Week 9 (Definition,characteristics equations, Routh stability criterion, Introduction to root locus method)

Week 10-11 (Root Locus plot )

Week 12-13 (Introduction to frequency response analysis)

Week 14-15( Design of control system)

Syllabus

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Control systeman interconnection of components forming a system configuration

that will provide a desired system response.

- consists of subsystems and processes (or plants) put together in

order to control the outputs.

Examplesiron, aircraft, car, body system (pancreas- regulates blood sugar)

Represented by block diagram

Example: Water level control system operates by sensing the difference between thedesired level setting and the actual water level. (Closed loop block diagram )

Lecture 1 : Introduction

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Open looputilizes an actuating device to control the process directly

without using feedback.

Closed-loop systemuses measurement of the output and feedback of thissignal to compare it with the desired output

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Closed-Loop System Open-Loop SystemHave feedback path No feedback path

Output response: greater accuracy Output response: not accurate

Less sensitive to noise,

disturbances and changes in theenvironment

Sensitive to noise, disturbances and

changes in the environment

System can compare the outputresponse with the input and make acorrection if there is any difference

Cannot correct the disturbances

Complex and expensive Simple and inexpensive

Example: washing machine(waterlevel control), air conditioning withtemperature control

Example:Toaster,washingmachine(washing process).

Chapter 1 Introduction