Control System Engineering
Control System Analysis
Examples of control systems, Open loop control systems, Closed loop control systems. Transfer function. Types of feedback and feedback control system characteristics - Noise rejection; Gain, Sensitivity, Stability.
Mathematical Modeling of Systems
Importance of a mathematical model, Block diagrams, Signal flow graphs, Masan's gain formula and its application to block diagram reduction. State space method, Solving time-invariant system,Transfer matrix.
Transient and Steady State - Response Analysis
Impulse response function, First order system, Second order system, Time domain specifications of systems, Analysis of transient-response using second order model.Classification of control systems according to Type of systems, Steady - state errors, Static error constants, Steady - state analysis of different types of systems using step, ramp and parabolic input signals.
Concept of stability, Stability analysis using Routh's stability criterion, Absolute stability, Relative stability, Root-Locus plots, Summary of general rules for constructing Root-Locus, Root-Locus analysis of control systems. Compensation techniques-Log, lead, log-lead.
Frequency domain specifications, Resonance peak and peak resonating frequency, Relationship between time and frequency domain specification of systems. Bode plots, Polar plots, Log-magnitude Vs phase plots, Nyquist stability criterion, Stability analysis, Relative stability, Gain margin, Phase margin, Stability analysis of system using Bode plots. Closed-loop frequency response-Constant gain and phase loci, Nichol's chart and their use in stability study of systems.
Control Components and Controller
D.C. and A.C. servomotors, Servoamplifier, Potentiometer, Synchro transmitters, Synchro receivers, Synchro control transformer, Stepper motors. Discontinuous controller modes, Continuous controller modes, Composite controllers.
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Chapter 4 Mathematical Modeling of Control Systems 41 to 464
Transfer Function and Impulse Response 31to326
Chapter 6 Signal Flow Graph Representation 6 1 to 6
Chapter 7 Time Response Analysis of Control Systems 7 1 to 7 130
Chapter 8 Stability Analysis 8 1 to 8
Chapter10 Basics of Frequency Domain Analysis 101 to 1028
Examples with Solutions 1013
Review Questions 1027
Chapter 13 Closed Loop Frequency Response 131 to 1320
Chapter 14 Compensation of Control Systems 141 to 1448
Chapter15 State Variable Analysis 151 to 1562
Examples with Solutions 15 51
Review Questions 15 59
Examples with Solutions 16 53
Review Questions 1662
lendixA Matrix AlgebrsSHHHBHHHi A1 to A8
Chapter12 Polar and Nyquist Plots 121 to 1286
armature block diagram Bode plot breakaway point characteristic equation closed loop poles closed loop system closed loop transfer Consider constant control system controller output corner frequency d.c. servomotor damping ratio dB/dec Determine factor forward path frequency response G(jco)H(jco given half of s-plane Hence imaginary axis intersection Key Point Laplace transform lead compensator line of slope linear loop transfer function magnitude condition magnitude plot Mason's gain formula matrix motor negative real axis node Nyquist path Nyquist plot obtained open loop poles open loop transfer oscillations overshoot parameter phase angle phase margin polar plot pole at origin pole-zero plot position potentiometer rad/sec reference input right half root locus rotor Routh's array second order system Section shift signal flow graph simple pole Solution stability steady state error step response stepper motor summing point system is stable takeoff point torque unstable variable voltage