|
EE 554 Course Home Page Section: 1:
2947005; (face-to-face) Section
2: 2947010 (online) T, Th 4:10-5:25, 1252 Howe Professor James McCalley |
Course: Electrical engineering 554, Power system dynamics
Instructors: Professor James McCalley
Office Hours: W10-12, F 3-4
E-mail & Phone: jdm@iastate.edu; 515-294-4844 (office)
Grader: None.
Catalog description:
(3-0) Cr. 3. S.
Prereq: E E 456, E E 457, E E 475
Dynamic performance of power systems with emphasis on stability. Modeling of system components and control equipment. Analysis of the dynamic behavior of the system in response to small and large disturbances.
Course Web Page:
There is a
Canvas page (see "Sign-ons" at ISU home
page www.iastate.edu), to which all of you should have access with your
ISU net ID and password. However, I will mainly use a public website to post
materials and homeworks. This website is at. http://home.engineering.iastate.edu/~jdm/ee554/index.htm.
Textbook: "Power system control and stability," by V. Vittal, J. McCalley, P. Anderson, and A. Fouad, 3rd edition, 2019, Wiley. The course textbook is available at the ISU bookstore, call 800-478-0048, 515-294-5684, or see
www.isubookstore.com/CourseMaterials?src=2. You may also get it from Amazon. This text was originally published in 1977 and then republished in 1994. A second edition came out in 2003. If you have one of these earlier version, I strongly suggest not to use it for this course, as the 3rd edition (2019) has been changed in many ways.
Some other useful references:
Course Prerequisite: Familiarity with the following topics is essential: matrix algebra and calculus-based network analysis theory. Knowledge of electromechanical energy conversion (including basic electromagnetic field theory) at the level of the text by Fitzgerald, Kingsley, and Kusko is important. Such material is addressed at ISU in EE 303. Power system analysis methods at the level of one of the standard textbooks on this subject (Bergen & Vittal, Grainger & Stevenson, Glover, Sarma, & Overbye, Gross, del Torro, Saadat, and Elgerd) is important. Such material is taught at ISU in EE 456 and EE 457. Some understanding of classical feedback control system theory, including Laplace Transforms and block diagram representation, is useful as well; such material is taught at ISU in EE 475.
Other Materials: Class notes and other materials (e.g., papers, etc) will be posted to the website. The amount of material being made available to you is significant. However, you may not need to read every resource in detail; rather, I suggest you download and review each resource but do so in a skimming-mode so that you will be aware of what is in the resource. I would also strongly suggest that you maintain a notebook of hardcopies of these materials. There are two benefits of doing so. First, it will be convenient to you during the final exam. Second, it is much more likely that you will then retain (and use) it for the rest of your career.
Exams: There will be two in-class closed/book closed/note exams during the semester and a final exam. The dates are posted on the class schedule. No make-up exams will be given, unless there is a legitimate reason for missing the exam that is not under the students control, and the student makes appropriate arrangement with the instructor in advance of the scheduled exam.
Final exam: The final exam will be a 2-hour written open book/open note exam with cumulative coverage.
Exams
for off-campus students: Off-campus
students have three options regarding taking exams (on-campus students must
take exams via option 1):
1. Option 1: Come to campus and take the exam
with the rest of the class during normal class time.
2. Option 2: Come to campus and take the exam
at one of the ISU testing center locations during the allowed scheduled time.
The ISU testing center locations are 2552 Gilman Hall, 60 Carver Hall, and 139
Durham Center. In this case, your proctor will be the "Gilman Testing Center," which you can implement by following the instructions
for finding a proctor here: https://isutestcenters.freshdesk.com/support/home
If
you do not live in or reasonably close to Ames, Iowa, then Options 1 and 2 may
not be realistic for you.
3. Option 3: Take the exam via the proctoring
and testing system. This option is the one most off-campus students will need
to select. This option requires that you find your own proctor (e.g.,
professional library staff) which you can do by following the instructors for
finding a proctor here: https://isutestcenters.freshdesk.com/support/solutions/43000039733.
IMPORTANT:
Off-campus students choosing option 3 need to identify a proctor by week 4 of
class.
Assignments: Besides two semester exams and the final exam, there will be homework assignments.
HW: There will be daily readings and also problem sets. You are expected to do all reading and all problem sets.
Project: Each student is required to complete a special project. Requirements for this will be defined later.
All assignments can be submitted via hardcopy in-class (preferred), by fax at 515-294-4263, or by e-mail to the instructor. Homeworks will be graded efficiently; it is your job to review solutions to identify and understand differences between your work and the solution.
Class Attendance: You are strongly encouraged to attend class, but role
will not be called. However, you are responsible for all information presented
in-class. Although effort will be made to post in-class coverage to the
website, class time is the primary means of communicating material; if you miss
class, there is no guarantee it will be possible to obtain the material in
another way, and the instructor is under no obligation to provide another way.
The bottom line is this: do not miss class, but if you do, make
arrangements with a fellow classmate to obtain any information or
material that was not posted to the website. For off-campus students, this is
less of an issue because you will have access to the archived recordings of
class. I do not make these recordings available to on-campus students because
experience has it that doing so results in decreased class attendance.
Class Preparation: A schedule of topics is provided on the website.
Although we may deviate from this schedule a little, if you are attending class
regularly, you should still be able to use it to tell where we are and how best
to prepare for class. Reviewing all posted materials is strongly encouraged. I
suggest that you check the website 15 minutes before class, print out any newly
posted material, and bring it to class with you; alternatively, bring your
laptop to class and access the material just before class begins. Please note: I frequently work on the materials right up to the
beginning of class, and so accessing it 15 minutes before class begins is a
good approach to guarantee you have the latest version of the materials in
front of you. You may maintain the materials in electronic form (and not hard
copies) throughout the semester; however, you will need hard copies for the
final exam (see comment in Other materials
above in regards to final exam).
Course grading policy:
Exam
1
|
20% |
Exam
2
|
20% |
Final
Examination
|
20% |
Homework
|
20% |
Course
project
|
20% |
Total |
100% |
Letter grades will be determined by the following guidelines
|
90 and above |
A |
|
80 to 90- |
A- / B+ / B |
|
70 to 80- |
B- / C+ / C |
|
60 to 70- |
C- / D+ / D |
|
60- and below |
D- / F |
The above guidelines are guaranteed in that they will not change in a way that is not in your favor, e.g., if your final average is 90 or above, you will definitely receive an A. It is possible, though not guaranteed, that the above guidelines could be changed in your favor, e.g., if your final average is 89.7, you might still get an A. However, any change in your favor of this nature is entirely the decision of the instructor and is not guaranteed.
Communication: Feel free to communicate with the instructor in any way that is convenient to you (after class, during office hours, phone, e-mail), for questions about the course material or assignments. E-mail is an especially good way, but response time here is variable, typically ranging from a minute to about 24 hours, depending on the nature of your questions and the instructors schedule. If you send email and do not hear back within 24 hours, resend it.
Course Goals: The goals of this course are to enable you to
1.Freely use the language of power system dynamics;
2.Relate analytical models to power system dynamic behavior;
3.Perform dynamic analysis of electric power systems using commercial grade simulation software;
4.Assess observed power system dynamic behavior.
Course Contents: (approximate number of lectures in parentheses)
Compact view:
1. Course overview (1)
2. Introduction to power system dynamics (1): Chapter 1
3. The Classical Model (4): Chapter 2
4. The Synchronous Machine (8): Chapter 4
5. Load modeling (2): Chapter 6.1-6.9
6. Simulation of multimachine systems (4): Chapter 5.1-5.7, Chapter 7.1-7.14.
7. Excitation systems (1) (Chapters 9.1-9.4, 9.10)
8. Response to Small Disturbances (5): Chapters 3 and 8.7
9. Modeling & control of wind & solar resources (1): Chapter 11
10. Voltage stability (1): Chapter 12
Expanded view:
1. Course overview (1)
2. Introduction to power
system dynamics (1): Chapter 1
·
System
Dynamic Performance
·
Reliability
criteria for system dynamic performance
·
Types
of stability studies
·
Analysis
tools
·
NERC
criteria
3.
The Classical Model (4): Chapter 2
·
The
Swing Equation
·
Synchronizing
power and natural frequencies of oscillations
·
The
equal area criterion
·
Multimachine
stability studies
·
Digital
simulation of multimachine systems
·
Numerical
integration techniques; enhanced
techniques
4.
The Synchronous Machine (8): Chapter 4
·
The
two reaction theory; Parks transformation for
synchronous machines
·
Development
of the complete d and q - axes equation in per unit, with G-winding
·
Effect
of choosing leading axis
·
Formulation
of the state-space equations
·
Saturation;
enhanced saturation methods
·
Load
equations: equations of the one machine connected to infinite bus
·
Transient
and subtransient parameters
·
Simplified
models
5.
Load modeling (2): Chapter 6.1-6.9
·
Static load models
·
Induction motor loads
·
Single phase motors
·
Power electronic loads
·
Self-restoring loads
·
Distributed energy resources
·
Composite load models
·
Data development
6.
Simulation of multimachine systems (4): Chapter 5.1-5.7, Chapter 7.1-7.14.
·
Determination
of initial conditions
·
Determination
of machine parameters from manufacturers data
·
Digital
simulation of synchronous machines; saturation
·
Network
representation and reference frames
·
Machines
represented by classical methods
·
Hybrid
formulation
·
Network
equations with flux linkage model
·
Total
system equations
·
Alternating
solution method
·
Simultaneous
solution method
·
Design
of numerical solvers
7.
Excitation systems (1) (Chapters 9.1-9.4, 9.10)
·
Treatment (from standards) of excitation control and
associated protection
·
Excitation control system definitions
·
Limiting and protection for excitation control
systems
·
Computer representation of excitation systems
8.
Response to Small Disturbances (5): Chapters 3 and 8.7
·
The
small signal stability problem
·
Modes
of oscillation, tie-line oscillations
·
Analytical
basis for identifying modes
·
Mode
shapes, participation factors
·
Motivation
for using power system stabilizers (PSS)
·
PSS
tuning
9. Modeling & control of wind & solar resources (1): Chapter 11
•
Wind turbine generators
•
PV Solar plants
10. Voltage stability (1): Chapter 12
•
Analysis of two-bus
system and PV, QV curves
•
Load modeling
•
Fault-induced delayed voltage
recovery
•
Continuation methods
of analysis
•
Bifurcation theory
Disability Statement:
Please address any special needs or special accommodations with me at the beginning of the semester or as soon as you become aware. Those seeking accommodations based on disabilities should obtain a Student Academic Accommodation Request (SAAR) from the Disability Resources (DR) office. Any student who feels s/he may need an accommodation based on the impact of a disability may contact me privately to discuss your specific needs.