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EC-404 · Control System/Official Syllabus

Control System (EC-404) - Official Syllabus

1
Unit 1

Introduction to Control system

  • Terminology and classification of control system
  • examples of control system
  • mathematical modeling of mechanical and electrical systems
  • differential equations
  • transfer function
  • block diagram representation and reduction
  • signal flow graph techniques
  • Feedback characteristics of control systems Open loop and closed loop systems
  • effect of feedback on control system and on external disturbances
  • linearization effect of feedback
  • regenerative feedback
2
Unit 2

Time response analysis

  • Standard test signals
  • time response of 1st order system
  • time response of 2nd order system
  • steady-state errors and error constants
  • effects of additions of poles and zeros to open loop and closed loop system
  • Time domain stability analysis Concept of stability of linear systems
  • effects of location of poles on stability
  • necessary conditions for stability
  • Routh-Hurwitz stability criteria
  • relative stability analysis
  • Root Locus concept
  • guidelines for sketching Root-Locus
3
Unit 3

Frequency response analysis

  • Correlation between time and frequency response
  • Polar plots
  • Bode Plots
  • all-pass and minimum-phase systems
  • log-magnitude versus Phase-Plots
  • closed-loop frequency response
  • Frequency domain stability analysis : Nyquist stability criterion
  • assessment of relative stability using Nyquist plot and Bode plot (phase margin, gain margin and stability)
4
Unit 4

Approaches to system design

  • Design problem
  • types of compensation techniques
  • design of phase-lag, phase lead and phase lead-lag compensators in time and frequency domain
  • proportional, derivative, integral and Composite Controllers
5
Unit 5

State space representation of systems

  • State space representation of systems
  • block diagram for state equation
  • transfer function decomposition
  • solution of state equation
  • transfer matrix
  • relationship between state equation and transfer function
  • controllability and observability

Laboratory Experiments

  • Control System performance analysis and applications of MATLAB in Control system performance analysis & design.

Reference Books

  • Modern electronic instrumentation and measurement techniques — Albert D. Helfrick, William David Cooper — TMH — 2008
  • Electronic Measurements and Instrumentation — Oliver Cage — TMH — 2009
  • Measurement and Instrumentation Principles — Alan S. Morris — Elsevier (Buterworth Heinmann) — 2008
  • Electronic Instrumentation and Measurements — David A. Bell — PHI, New Delhi — 2nd Ed., 2008
  • Electronics Instrumentation — H.S. Kalsi — TMH — Ed. 2004
  • A Course in Electrical and Electronic Measurements and Instrumentation — A.K.Sawhney — Dhanpat Rai
  • Electronic Instruments & Instrumentation Technology — MMS Anand — PHI Pvt. Ltd., New Delhi — Ed. 2005
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