control systems
Semester : IV
Course Code : 18EC43
CIE Marks : 40 SEE Marks : 60
CONTROL SYSTEMS
18EC43
SYLLABUS
Module-1
Introduction to Control Systems: Types of Control Systems, Effect of Feedback Systems, Differential equation of Physical Systems –Mechanical Systems, Electrical Systems, Electromechanical systems, Analogous Systems.
Module-2
Block diagrams and signal flow graphs: Transfer functions, Block diagram algebra and Signal Flow Graphs.
Module-3
Time Response of feedback control systems: Standard test signals, the 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).
Module-4
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.
Module-5
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.