Control System ( EX-405 )
( EX- 4th Sem )

Course Outcomes
After Completion of this Course students will:
- Understand concepts of Control System.
- Understand concepts of Feedback characteristics of control systems.
- Understand concepts of Time response analysis.
- Understand concepts of Time domain stability analysis.
- Understand concepts of Frequency response analysis.
- Understand concepts of Frequency domain stability analysis.
- Be able to solve System Design Questions.
- Understand Concepts of State space representation of systems.
Course Content
Main Contents of this course which students needs to learn are:
- Modeling of dynamic systems: Electrical, Mechanical and hydraulic systems, Concept of transfer function, Laplace Transform, State space description of dynamic systems: Open and closed loop systems, Signal flow graph, Mason’s formula, Components of control systems: Error detectors (Synchros& Potentiometer), Servomotors (AC & DC), tacho-generators, power amplifier, steeper motors.
- Time – domain analysis of closed loop systems: Test signals, time response of first and second order systems, Time domain performance specifications, Steady state error & error constants Feedback control actions: Proportional, derivative and integral control.
- Stability: Routh-Hurwitz stability analysis Characteristics equation of closed loop system root loci, construction of loci, Effect of adding, poles and Zeros on the loci, Stability by root loci.
- Frequency, Domain analysis, Bode plots, Effect of adding, poles and Zeros, Polar plot, Nyquist stability analysis, Relative stability: Gain and phase margins.
- Design of control systems with PD/PI/PID Control in time domain and Frequency domain, leadlag, Lag-lead compensation, Design of compensating networks. Solution of state equation: Eigen values & eigenvectors digitalization state transitive matrix
Book References
Some books which will help you to learn this course:
- Albert D. Helfrick, William David Cooper, “Modern electronic instrumentation and measurement techniques”, TMH 2008.
- Oliver Cage, “Electronic Measurements and Instrumentation”, TMH, 2009.
- Alan S. Morris, “Measurement and Instrumentation Principles”, Elsevier (Buterworth Heinmann), 2008.
- David A. Bell, “Electronic Instrumentation and Measurements”, 2nd Ed., PHI, New Delhi 2008.
- H.S. Kalsi, “Electronics Instrumentation”, TMH Ed. 2004.
- A.K.Sawhney, “A Course in Electrical and Electronic Measurements and Instrumentation”, Dhanpat Rai.
- MMS Anand, “Electronic Instruments & Instrumentation Technology”, PHI Pvt. Ltd., New Delhi Ed. 2005.
List of Experiments
- Time response of second order system.
- Characteristics of Synchros.
- Effect of feedback on servomotors.
- Determination of transfer function of A-C servomotor.
- Determination of transfer function of D-C motor.
- Formulation of PI & PD controller and study of closed loop responses of 1st and 2nd order dynamic systems.
- State space model for classical transfer function using MATLAB.
- Simulation of transfer function using operational amplifier.
- Design problem: Compensating Networks of lead and lag.
- Temperature controller using PID.
- Transfer function of a DC generator.
- Characteristics of AC servomotor.
- Use of MATLAB for root loci and Bode plots of type-1, type-2 systems.
- Study of analog computer and simulation of 1st orderand 2nd order dynamic equations.
- Formulation of proportional control on 1st order and 2nd order dynamic systems.
- Formulation of proportional control on 1st order and 2nd order dynamic systems.
- Study of lead and lag compensating networks.
- Effect of adding poles & zeros on root loci and bode plots of type-1, type-2 systems through MATLAB.
Experiment Notes
Cousre Notes
For "Course Notes" you can refer our Notes Section for 2nd Year( Click Here )