EFFECT FROM THE ACADEMIC YEAR 2013 - 2014
ME 355
CONTROL SYSTEM THEORY
Instruction 4 Periods per week
Duration of University Examination 3 Hours
University Examination 75 Marks
Sessional 25 Marks
UNIT-I
Control Systems Classification: Open Loop & Closed Loop Systems. Mathematical models and Transfer functions from governing equations of mechanical, electrical, hydraulic, pneumatic, thermal systems. AC, DC servomotors and Electromechanical servo systems.
UNIT-II
Block diagrams, Block diagram reduction. Signal flow graphs, Mason’s gain formula. Transient response. Time domain specifications of 1s1 and 2nd order systems. Steady state error, Error coefficient, sensitivity performance indices, Routh criteria.
UNIT-III
Routh criteria, Tooth Locus method. Frequency Response: Bode, Polar plots. Correlation between transient and frequency response. Bandwidth, experimental determination of transfer functions.
UNIT-IV
Nyquist criteria, gain and phase margins, lead, lag and lead-lag compensator design, PID controller, linearization of Non linear systems.
UNIT-V
State - space representation of linear control systems. State transition matrix. Solution of state equations: Zero input response and Zero state response. Concept, of controllability and observability.
Suggested Reading:
- 1.Dorf R.C., Modern Control Systems, Addison - Wesley 1989.
- 2.M. Gopal, Control Systems, Tate McGraw Hill, 2004.
- 3.Ogata, K., Modern Control Engineering, Prentice Hall, 2004.
Norman S. Nise, Control Systems Engineering, John Wiley & Sons, Inc., 2001