Syllabus Control Systems - [EE3503] UNIT I MODELLING OF LINEAR TIME INVARIANT SYSTEM (LTIV) Control system : Open loop and Closed loop - Feedback control system characteristics - First principle modelling : Mechanical, Electrical and Electromechanical systems - Transfer function representations : Block diagram and Signal flow graph. (Chapters - 1, 2, 3, 4, 5) UNIT II TIME DOMAIN ANALYSIS Standard test inputs - Time response - Time domain specifications - Stability analysis : Concept of stability - Routh Hurwitz stability criterion - Root locus : Construction and Interpretation. Effect of adding poles and zeros. (Chapters - 6, 7, 8) UNIT III FREQUENCY DOMAIN ANALYSIS Bode plot, Polar plot and Nyquist plot : Frequency domain specifications - Introduction to closed loop Frequency Response. Effect of adding lag and lead compensators. (Chapters - 9, 10, 11) UNIT IV STATE VARIABLE ANALYSIS State variable formulation - Non uniqueness of state space model - State transition matrix - Eigen values - Eigen vectors - Free and forced responses for Time Invariant and Time Varying Systems - Controllability - Observability. (Chapter - 13) UNIT V DESIGN OF FEEDBACK CONTROL SYSTEM Design specifications - Lead, Lag and Lag-lead compensators using Root locus and Bode plot techniques - PID controller - Design using reaction curve and Ziegler - Nichols technique - PID control in State Feedback form. (Chapter - 12)
