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ANNOUNCEMENTS |
This course Web page is not actively maintained. Up-to-date information is found on the class eLC pages.
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SUMMARY |
Course Description
The analysis and design of continuous and time-discrete linear feedback control
systems with a focus on frequency domain models. Simulation using Scilab/xcos to
design controllers for steady-state
error reduction and optimal transient response to varied inputs.
Prerequisites: ENGR/ELEE 4210 (Linear Systems) or Permission of Department.
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CONTENTS |
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INTRODUCTION |
Feedback controls are ubiquitous and fundamental to modern engineering. Whether a
component in a simple water tank or the sophisticated control systems in aeronautics
and robotics, feedback controls make technology safer, faster, more reliable, if not
possible in the first place. Feedback systems can also be found in unexpected areas,
for example in biology or economics.
In this class, we will understand what feedback controls are, and we will learn how
to master feedback controls in three major steps:
Consistent with this philosophy, there will be quizzes and a semester project.
The quizzes can be regarded
as short homeworks with a theoretical emphasis. These will allow you to strengthen your
understanding of the theory and to assess your preparation for the exams.
The semester project allows you to build an actual feedback control system.
All aspects are covered, from design of the process (or plant) and the sensors
to the theory of the necessary control system to the controller implementation.
No specific path to the solution is prescribed, and you have wide design flexibility.
SYLLABUS
This course syllabus is a general plan for the course. Deviations may be necessary and will
be announced.
BOOKS
Suggested reading:
Linear Feedback Controls -- The Essentials, 2nd edition (M. Haidekker, Elsevier 2020),
Recommended additional textbooks:
COMPUTER LAB
All student computers in Driftmier have Scilab/xcos installed.
Xcos/Scilab is
Free Software. You may download and install a
copy free of charge and with the right to access the
source
code.
I encourage you to download your own copy and install it on your laptops or home computers.
GRADING
The grade will be based about equally on short quizzes, the homeworks, the midterm
exam, the final exam, and the semester project.
You will receive score points based on the fill-the-bucket principle,
i.e. for each homework assignment and for each test, you accrue score points.
Your final grade will be determined from the score you achieved relative
to the maximum score achievable. For a rough idea, you receive a maximum
of 20-40 points per quiz, 100 points per exam, and 150 points for the
semester project, resulting in a maximum score of around 500 points.
We use a fixed grading system. There will be no adjustment
based on the overall class performance.
To get a passing grade, you will have to achieve an overall score of at least 45%.
The following table shows the percentage of your score you need to reach
for a specific grade:
OFFICE HOURS
QUIZZES AND PROJECTS
NOTE: Quizzes must be turned in electroncially via eLC dropbox! Two points will be deduced if you want
a non-eLC turnin to be considered (e.g., missed deadline or sent via e-mail)
Link to eLC: Click here.
For the self-grading policy, use this document.
Grading Milestone #1 requires paper turnin! Create a formal cover page for your project report.
The cover page should contain the names of all team members and the project you decide to pursue.
Turn in a paper copy in class.
Team presentations are a short video approximately between 5 and 7 minutes long.
The video should capture the following topics:
LINKS & RESOURCES
Here are some interesting links, most of them to Free
software (with a capital F):
Linear systems and feedback controls make extensive use of mathematical models.
However, in this class, we will always stay close to practical applications.
The class is strongly based on hands-on
projects where the theoretical concepts can be tested in practice.
Block Topic
1 Introduction to feedback control systems
Feedback control examples
2 Formal description of feedback systems
Block diagrams and signal flow graphs
Linearization
3 Description of feedback systems in the Laplace domain
4 Numerical simulation of control systems with XCos
5 Performance and response of feedback systems
6 Stability criteria
7 Stability criteria cont'd
8 The root locus design method
9 Frequency-domain design methods
Bode diagrams and Nyquist design
10 State-variable description of feedback systems
11 Time-discrete linear systems
12 The z transform
13 Stability of time-discrete systems
14 Design of time-discrete feedback systems
15 Presentation of the semester projects
for more information and a link to the publisher's Web site
This book is available through the UGA library! The link goes through a proxy,
which means that I can't provide a simple link here. However, access is straightforward:
Schaum's Oulines are available on-line on campus:
Link to e-resource at our library
Grade Minimum percentage
Grade Minimum percentage
Grade Minimum percentage
A 95%
A- 90%
B+ 85%
B 80%
B- 75%
C+ 70%
C 65%
C- 60%
D+ 50%
D 45%
My office is 115F Riverbend North. In case I am not in the office, please try the lab, RBN 112C.
Quiz assignments
Quiz No. Topic Date assigned
Date due Score due
First-order P-control: Static response
Semester project:
Grading Milestone Due Date
1: Team nomination 1-16-20
2: Build the process/plant 1-30-20
4: Design and add the sensor 2-20-20
3: Mathematical derscription of process 3-17-20
5: Build the power driver 3-17-20
Teamwork and presentations are peer-evaluated. You also vote for two awards.
Use this sheet for scoring and award votes.
Fill out this sheet and submit it
through eLC for up to 15 points toward your score.
Items 6 through 10 on this sheet are for your information only. These are awards that
are based on measurable and demonstrated performance.