Introduction to Control Systems:
Types of Control Systems, Effect of Feedback System s, Differential equation of Physical Systems –Mechanical Systems, Electrical Systems, Electromechanical systems, Analogous Systems.
Block diagrams and signal flow graphs:
Transfer functions, Block diagram algebra and Signal Flow graphs.
Time Response of feedback control systems:
Standard test signals, Unit step response of First and Second order Systems. Time response specifications, Time response specifications of second order systems, steady state errors and error constants. Introduction to PI, PD and PID Controllers (excluding design).
Stability analysis:
Concepts of stability, Necessary conditions for Stability, Routhstability criterion, Relative stability analysis: more on the Routh stability criterion. Introduction to Root-Locus Techniques, The root locus concepts, Construction of rootloci.
Frequency domain analysis and stability:
Correlation between time and frequency response, Bode Plots, Experimental determination of transfer function.
Introduction to Polar Plots, (Inverse Polar Plots excluded) Mathematical preliminaries, Nyquist Stability criterion, (System s with transportation lag excluded) Introduction to lead, lag and lead- lag compensating networks (excluding design).
Introduction to State variable analysis:
Concepts of state, state variable and state models for electrical systems, Solution of state equations.
Course Outcomes:
At the end of the course, the students will be able to
• Develop the mathematical model of mechanical and electrical systems.
• Develop transfer function for a given control system using block diagram reduction techniques and signal flow graph method.
• Determine the time domain specification s for first an d second order systems.
• Determine the stability of a system in the time domain using Routh-Hurwitz criterion and Root-locus technique.
• Determine the s stability of a system in the frequency domain u sing Nyquist and bode plots.
Question paper pattern:
• Examination will be conducted for 100 marks with question paper containing 10 full questions, each of 20 marks.
• Each full question can have a maximum of 4 sub questions.
• There will be 2 full questions from each module covering all the topics of the module.
• Students will have to answer 5 full questions, selecting one full question from each module.
• The total marks will be proportionally reduced to 60 marks as SEE marks is 60.
Text Book:
J. Nagarath an d M.Gopal, “ Control System s Engineering”, New Age International(P) Limited, Publishers, Fifthedition- 2005,ISBN: 81 - 224 - 2008-7.
Reference Books:
1. “Modern Control Engineering,” K.Ogata, Pearson Education Asia/ PHI,4 th Edition, 2002. ISBN 978 - 81 - 203 - 4010 - 7.
2. “Automatic Control Systems”, Benjamin C. Kuo, JohnWiley India Pvt. Ltd.,8 th Edition, 2008.
3. “Feedback and Control System,” Joseph J Distefano III et al., Schaum’sOutlines, TMH, 2 n d Edition 2007.