**Syllabus of GTU Control Theory 4th Sem EC**

**GUJARAT TECHNOLOGICAL UNIVERSITY**

**Electronics and Communication Engineering**

**B.E Semester: 4**

**Subject Code 141701**

**Subject Name Control Theory**

**1 Introduction to Control Systems:**

Introduction, Examples of Control Systems, Closed-loop Control versus

Open-Loop Control

**2 Mathematical Modeling of Dynamic Systems:**

Introduction, Transfer Function and Impulse-Response Function, Automatic

Control Systems, Modeling in state Space, State-Space Representation of

Dynamic Systems, Transformation of Mathematical Models with MATLAB,

Mechanical Systems, Electrical and Electronic Systems, Signal Flow

Graphs, Linearization of Nonlinear Mathematical Models

**3 Mathematical Modeling of Fluid Systems and Thermal systems:**

Introduction, Liquid-Level Systems, Thermal Systems

**4 Transient and Steady-State Response Analyses:**

Introduction, First-Order Systems, Second-Order Systems, Higher-Order

Systems, Transient-Response Analysis with MATLAB, Routh’s Stability

Criterion, Effects of Integral and Derivative Control Actions on System

Performance, Steady-State Errors in Unity-Feedback Control Systems

**5 Root-Locus Analysis:**

Introduction, Root-Locus Plots, General Rules for Constructing Root Loci,

Root-Locus Plots with MATLAB, Positive Feedback Systems, Conditionally

Stable Systems, Root Loci for Systems with Transport Lag

**6 Frequency-Response Analysis:**

Introduction, Bode Diagrams, Plotting Bode Diagrams with MATLAB, Polar

Plots, Drawing Nyquist Plots with MATLAB, Log-Magnitude-versus-Phase

Plots, Nyquist Stability Criterion, Stability Analysis, Relative Stability,

Closed-Loop Frequency Response of Unity-Feedback Systems

**Reference Books:**

1. Modern Control Engineering by Katsuhiko Ogata, 4th Edition, Prentice Hall of India.

2. Automatic Control Systems by Benjamin C.Kuo, 8th Edition, Farid Golnaraghi, John Wiley & Sons.

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