30-10-2012, 05:57 PM
EE3101 Control System Engineering:
Introduction:
Scope of control, Parts of a control system, Multidisciplinary nature, Scope of present course. Mathematical modeling of physical systems ifferential equation, Difference equation, and State variable representations; Examples of modeling different types (e.g. electrical, mechanical, chemical, biological, social etc.) of systems, Equivalence between the elements of different types of systems. Linear systems and their s-domain representations: Linearity and linearization, Convolution integral, Laplace domain representation of signals and systems, Transfer function and its interpretation in terms of impulse and frequency responses, Block-diagram and signal flow graph manipulations. Characterization of systems: Stability -- concept and definition, poles, Routh array, internal stability of coupled systems, Time domain response -- damping coefficient, natural frequency, overshoot, settling time, rise time;
Frequency domain response -- peak and peaking frequency, bandwidth and cut-off rate; Link between time and frequency domain response features. Advantages of closed loop operation: Sensitivity and complementary sensitivity, Disturbance and noise reduction. Analysis of closed loop systems : Stability and relative stability using root-locus approach, Nyquist stability criterion, Steady state errors and system types Compensation techniques : Performance goals -- Steady-state, transient and robustness specifications, PID, lag-lead and algebraic approaches for controller design.