25-02-2013, 01:06 PM
10EI205 CONTROL SYSTEMS Course Objectives
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Unit I Introduction
Systems and their representation: Basic structure of control system, Open loop and Closed loop
systems- Electrical analogy of physical systems-transfer function- Block diagram representation-
Block diagram reduction technique-Signal Flow graph and Mason’s formula
Unit II Components of Control System
Components of Automatic Control systems - Potentiometer - Synchros - Controllers-
Tachogenerator - AC and DC servo motor- Stepper motors - Gyroscope
Unit III Time Domain Analysis
Types of test inputs-Response of first and second order system-Time domain specifications- type
and order of a system-response with P, PI, PD, and PID controllers-steady state error-static error
and generalized Error coefficients- correlation between static and dynamic error coefficients
Unit IV Frequency Domain Analysis
Frequency response- Frequency domain specifications –correlation between time and frequency
response- Lead, lag and lead-lag compensators-Frequency response plots- Bode and Nyquist
plots- Polar plot- Nichol’s chart and M and N circles
Unit V Stability Analysis
Concepts of stability: Characteristic equation- location of roots in s-plane for stabilityasymptotic
stability and relative stability- Routh-Hurwitz stability criterion-Root locus
techniques