GEG4154

Control systems

(ENG)

G Chetty

6 points + 52 lecture hours and 26 tutorial/laboratory hours + Distance only + Prerequisites: GEG2513, GEG2523, GAS2641

Synopsis: The nature of automatic feedback control. Open loop and closed loop systems. Block diagram representation. Effect of feedback on gain, distortion, and sensitivity to parameter change. Derivation of system equations. Stability criterion. Gain and phase margins. Nyquist diagram, simple and full stability test. Root locus plotting. Closed loop performance from the root locus. State variable representation, transfer matrix, closed loop analysis. Feedback system compensation analysis and design, by root locus and frequency response techniques. Lag-lead networks.

Assessment: Examinations: 75% + Laboratory: 5% + Assignments: 20%