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Control Engineering

Control Engineering. Instructor: Prof. S.D. Agashe, Department of Electrical Engineering, IIT Bombay. The course deals with topics in control systems: industrial control examples and modern control problems; basic characteristics of feedback control systems - stability, steady-state accuracy, transient accuracy, time response of second-order systems, steady-state errors and error constants; frequency response analysis - relationship between time and frequency response, Polar plots, Bode plot, stability in frequency domain, Nyquist plots, Nyquist stability criterion; State variable analysis - state variable, state model, state models for linear continuous time functions; introduction to optimal control and nonlinear control. (from nptel.ac.in)

Lecture 28 - Second-Order System Response in s-Domain


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Lecture 01 - The Control Problem
Lecture 02 - Some More Examples
Lecture 03 - Different Kinds of Control Systems
Lecture 04 - History of Feedback
Lecture 05 - Modern Control Problems
Lecture 06 - DC Motor Speed Control
Lecture 07 - System Modelling, Analogy
Lecture 08 - Causes of System Error
Lecture 09 - Calculation of Error
Lecture 10 - Control System Sensitivity
Lecture 11 - Automatic Control of DC Motor
Lecture 12 - Proportional Control
Lecture 13 - Non-unity Feedback
Lecture 14 - Signal Flow Graph
Lecture 15 - Mason's Gain Formula
Lecture 16 - Signal Flow Graph for DC Motor Control
Lecture 17 - Steady State Calculations
Lecture 18 - Differential Equation Model and Laplace Transformation Model
Lecture 19 - D-Operator Method
Lecture 20 - Second-Order System Response
Lecture 21 - Frequency Response
Lecture 22 - Laplace Transformation Theorems
Lecture 23 - Final Value Theorem
Lecture 24 - Transfer Function and Pole-Zero Diagram
Lecture 25 - Good Poles and Bad Poles
Lecture 26 - Signal Flow Graph with Transfer Functions
Lecture 27 - s-Domain and t-Domain
Lecture 28 - Second-Order System Response in s-Domain
Lecture 29 - Integral Feedback
Lecture 30 - Root-Locus Method
Lecture 31 - Root-Locus Rules
Lecture 32 - Asymptotes of Root Locus
Lecture 33 - Routh Array
Lecture 34 - Singular Cases
Lecture 35 - Closed Loop Poles
Lecture 36 - Controller in the Forwarded Path
Lecture 37 - Mapping of Control in the Complex-Plane
Lecture 38 - Encirclement by a Curve
Lecture 39 - Nyquist Criterion
Lecture 40 - Application of the Nyquist Criterion
Lecture 41 - Polar Plot and Bode Plots
Lecture 42 - Logarithmic Scale for Frequency
Lecture 43 - Asymptotic dB Gain
Lecture 44 - Compensating Network
Lecture 45 - Nichols Chart
Lecture 46 - Time Domain Methods of Analysis and Design
Lecture 47 - State Variable Equations