ECE 421

Classical Systems and Control Theory


Spring 1997: Monday & Wednesday, 5:55-7:10 p.m., PE Bldg.,
Room 209, Dr. Beale
Graduate Teaching Assistant: Ravindra Nara, rnara@osf1.gmu.edu
Office Hours: Wednesday 10:00 - 10:30 a.m. and Thursday 12:30 - 4:00 p.m.,
S&T I, Rm. 2D.
Prerequisites: Grade of C or better in ECE 360 or POI
Text: Automatic Control Systems, G.J. Thaler, West Publishing

ECE 421 Final Exam
Monday, May 12, 1997
4:30 - 7:15 p.m., PE Building, Room 209

Homework Assignments Examples
Design Project Bibliography


Objectives:

Learn the purposes, advantages and disadvantages, terminology, and configurations of feedback control systems.
Learn ways of classifying, measuring, and analyzing the stability and performance properties of feedback control systems.
Learn various classical frequency domain and time domain techniques for designing compensators in order to improve performance in feedback systems.

Prerequisites by topic:

Knowledge of Fourier and Laplace transforms.
Ability to develop transfer functions for linear electrical circuits.
Knowledge of relationship between system poles and time- domain performance.
Knowledge of the concept of system frequency response.

Test Schedule, Spring '97:

Test 1 -- Monday, February 24, Chapters 1, 2, 3
Test 2 -- Wednesday, April 9, Chapters 4, 5, 6
Final Exam -- Monday, May 12, 4:30 - 7:15 p.m., Chapter 8

Course Outline, Spring '97:

Chapter 1 -- Introduction, what control systems are, types of control systems, examples of control systems, what feedback is and why it is used - 1 class period.
Chapter 2 -- System modeling, block diagrams for systems, signal flow graphs and Mason's gain formula, steady-state accuracy - 4 class periods.
Chapter 3 -- Stability analysis using the tabular Routh-Hurwitz criterion, stability analysis in the frequency domain, polar plots and the Nyquist stability criterion, evaluating relative stability - 4 class periods.
Chapter 4 -- System characteristics in the time and frequency domains, the standard second-order system, higher-order systems, pole location and time response interaction - 3 class periods.
Chapter 5 -- System frequency response, using Bode plots, frequency domain stability and transient response analysis of control systems - 3 class periods.
Chapter 6 -- Closed-loop poles and their movement, concept of the root locus magnitude and phase criteria, constructing the root locus plot, properties of the root locus - 4 class periods.
Chapter 8 -- Specifications for control systems, designing compensators in the frequency domain, designing compensators using the root locus, phase lag and phase lead compensators, lag-lead compensation - 6 class periods.

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Lastest revision on Wednesday, June 7, 2006 11:46 AM