5EE3 CONTROL SYSTEMS
Unit 1
Introduction: Elements of control systems, concept of open loop and closed loop systems., Examples and application of open loop and closed loop systems, brief idea of multivariable control systems.
Unit 2
Mathematical Modeling of Physical Systems: Representation of physical system (Electro Mechanical) by differential equations, Determination of transfer function by block diagram reduction techniques and signal flow method, Laplace transformation function, inverse Laplace transformation.
Unit 3
Time Response Analysis of First Order and Second Order System: Characteristic equations, response to step, ramp and parabolic inputs, transient response analysis, steady state errors and error constants, Transient & steady state analysis of LTI systems.
Unit 4
Stability of the System: Absolute stability and relative stability, Routh’s stability criterion, root locus method of analysis, polar plots, Nyquist stability criterion. M and N Loci, Nichols chart.
Unit 5
Elementary Ideas of Compensation, Networks: Lag, lead and log lead networks, brief idea of proportional, derivative and integral controllers.

Reference/Suggested Books
1. I J Nagrath and M Gopal: Control Systems Engineering, 3rd Ed, New Age Publication.
2. Robert H Bishop : Modern Control Systems, Boyd and Fraser pub
3. B C Kuo: Modern Control Engineering, NEW AGE
4. K.Ogata,“Modern Control Engineering” Prentice Hall of India.
5. Norman S.Nise, “Control System Engineering”, John Wiley & Sons.
6. Richard C Dorf, Robert H Bishop : Modern Control Systems, Prentice-Hall