Control systems notes

Elements of control systems; block‐diagram representations; open-loop & closed-loop systems; principles and applications of feedback.

Control system components. LTI (Linear Time-Invariant) systems: time-domain and transform-domain analysis.

Stability analysis: Routh-Hurwitz criterion; root loci; Bode-plots and polar plots; Nyquist’s criterion.

Design of compensators: lead, lag (and lead-lag) compensators.

Controllers: Proportional (P), Proportional–Integral (PI), Proportional–Integral–Derivative (PID) controllers.

State-variable representation and analysis of control systems