CONTROL SYSTEMS

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Concept of Control Systems: Basic terminology, open-loop and closed-loop systems. - 2 hrs.

Control System Models: Dynamic models, transfer function models, state variable models, block diagram representation, block diagram reduction, signal flow graphs, Mason�s gain formula. - 8 hrs.

Dynamic Response: Step and impulse responses of first and second order systems, time domain specifications, frequency response specifications. - 5 hrs.

Errors: Steady state errors, error constants, dynamic error coefficients, error series. - 3 hrs.

Controllers: Proportional control, PI, PD and PID controllers. - 2 hrs.

Stability: BIBO stability, effect of location of roots of characteristic equation in the s-plane on stability, Routh-Hurwitz criterion, applications. - 3 hrs.

Stability Analysis:

Bode plots, asymptotic plot, gain margin and phase margin. - 3 hrs.

Root locus, construction rules for positive K, interpretation of system response from root locus plots. - 5 hrs.

Polar plots, Nyquist diagrams, Nyquist criterion for stability. - 3 hrs.

Control System Design: Cascade compensation, phase lead and phase lag compensation, design via root locus, design via Bode plot. - 6 hrs.

References:

1. Stanley M. Shimmers, �Modern Control System Theory and Design�.
2. Norman S. Nise, �Control System Engineering�.
3. Richard C. Dorf, Robert H. Bishop, �Modern Control Systems�.
4. Morris Driels, �Linear Control System Engineering�.

CONTROL SYSTEM LABORATORY

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Using MATLAB Control System tool box:

1. MATLAB familiarity.
2. Elementary operations.
3. Transformations.
4. Time domain responses.
5. Frequency domain responses.
6. Routh-Hurwitz test.
7. Bode plot.
8. Polar plot.
9. Nyquist plot.
10. Root locus plot.