18ME71 Control Engineering syllabus for ME

Introduction:

Components of a control system, Open loop and closed loop systems.

Types of controllers:

Proportional, Integral, Differential, Proportional-Integral, and Proportional- Integral Differential controllers.

Modelling of Physical Systems:

Mathematical Models of Mechanical, Electrical, Thermal, Hydraulic Systems.

Time domain performance of control systems:

Typical test signal, Unit step response and time domain specifications of first order, second order system. Steady state error, error constants.

Block diagram algebra, Reduction of block diagram, Signal flow graphs, Gain formula for signal flow graphs, State diagram from differential equations.

Stability of linear control systems:

Routh’s criterion, Root locus, Determination of phase margin and gain margin using root locus.

Stability analysis using Polar plot, Nyquist plot, Bode plot, Determination of phase margin and gain margin using Bode plot.

Assignment:

1.Study of On-Off Controller for Flow/ Temperature.

2. Study of Control Modes like P, PD, PI, PID for Pressure / Temperature / Flow.

3. Assignment on Root Locus, Bode Plots and Polar Plots.

4. Use of Software ‘MATLAB’ on the above topics.

Course Outcomes:

At the end of the course, the student will be able to:

CO1: Identify the type of control and control actions.

CO2: Develop the mathematical model of the physical systems.

CO3: Estimate the response and error in response of first and second order systems subjected standard input signals.

CO4: Represent the complex physical system using block diagram and signal flow graph and obtain transfer function.

CO5: Analyse a linear feedback control system for stability using Hurwitz criterion, Routh’s criterion and root Locus technique in complex domain.

CO6: Analyse the stability of linear feedback control systems in frequency domain using polar plots, Nyquist and Bode plots.

Question paper pattern:

• The question paper will have ten full questions carrying equal marks.
• Each full question will be for 20 marks.
• There will be two full questions (with a maximum of four sub- questions) from each module.
• Each full question will have sub- question covering all the topics under a module.
• The students will have to answer five full questions, selecting one full question from each module.

Textbook/s

1 Automatic Control Systems Farid G., Kuo B. C McGraw Hill Education 10th Edition,2018

2 Control systems Manik D. N Cengage 2017

Reference Books

1 Modern control Engineering K. Ogeta Pearson 5th Edition, 2010

2 Control Systems Engineering Norman S Nice Fourth Edition, 2007

3 Modern control Systems Richard C Dorf Pearson 2017

4 Control Systems Engineering IjNagrath, M Gopal New Age International (P) Ltd 2018

5 Control Systems Engineering S Palani Tata McGraw Hill Publishing Co Ltd ISBN-13 9780070671935