Electric Power Systems

EGR 325, Fall 2014

Professor: Judith Cardell
Office: 352 Ford Hall
Office hours: Monday 1:30-3:00; Tuesday 12:30-2:00

Class Time: MWF 10:00 - 10:50 FH 143
Prerequisites: EGR 220, Circuit Theory, or permission of instructor
Readings: Posted in table below and on Moodle. An optional, and possibly useful text is: Electric Power Systems: A Conceptual Introduction, Alexandra von Meier, Wiley Survival Guides



EGR 325 Class and Assignment Schedule, Fall 2014

Week Topic Reading HW due WEDNESDAY
(by 4pm to 352 FH)
 Sept 5 Course Overview
  • ABET Outcomes Discussion - the Book of Evidence
  • Reading Strategies

Intro and BoE slides
* Course Concept Map *
Reading Strategy Ideas
 Sept 8  Electricity Uses, Benefits and Drawbacks
  • Monday:
    • Rural Electrification Discussion
  • Wednesday: Knowledge Building
    • Energy Policy discussion
      • The why and what of government intervention
    • Semester KB specifics to be determined together in class
  • Friday:
    • CO2 Regulation Discussion
    • Meet the Mobile Wind Turbine (Monday or Friday)
      • Multi-week lab assignment
      • Manuals for all wind turbine cart equipment on Moodle

Rural Electrification (see Reading Strategy Ideas, above)
Knowledge Building: Note green underlines in these readings
Energy Policy Readings: To go along with KB discussion:
CO2 Reg; Other KB topics?
 Sept 15 The Transmission System & Power Flow Analysis
  • AC circuit review: Z, S = P + jQ
  • Power Flow - The physical and mathematical problem
  • Modeling a power system with Power World

HW 2

  • Continue with Knowledge Building
  • Start power flow problems for HW 3, due next week, especially making sure you have a computer that will run PowerWorld for you and you know how to use it (and do not all plan on using the dept. laptops at the same time) - start early!
 Sept 22 Generator Efficiency & System Operations
  • Generating plant costs, efficiency, heat rate
  • Constrained optimization and the Lagrangian
  • KB discussion - refining questions
Economic dispatch (this week and next)
  • Power Generation, Operation & Control, Wood & Wollenberg, pp 29-34
  • Power System Analysis & Design, Glover & Sarma, pp 525-536
  • Linear Programming Tutorial, Chapters 1 & 2 as needed
  • deNeufville and Vanderbei as needed
HW 3: Power flow
 Sep 29 Day-ahead & Hour-ahead Planning
  • Mountain Day!
  • Economic dispatch, ED
  • Optimal power flow, OPF
  • PowerWorld and OPF; Revisit power flow self-quiz
continue with previous week's readings
and Wind Cart Manuals on Moodle
  • Wind Cart Lab: Initial lab memo for experiments, data and results with anemometers & changes to Wind Turbine Cart plans, as needed.
  • KB focused effort for setting up the rest of the semester
 Oct 6 Load, RETs and Net Load
  • Customers & Load Modeling
    • The Load Duration Curve (LDC)
  • Demand response and demand side management
  • System Integration of Renewables
  • Mitigating System Variability & Uncertainty
Load Modeling
  • Power Generation, Operation & Control, Wood & Wollenberg, pp 270-272
  • The Electric Power Engineering Handbook, ed. Grigsby, pp 7-12 - 7-16
  • Load Forecasting, IAEA Expansion Planning (Full, huge, report available here)
Integrating Renewables Mitigating Variability with Demand Response Wind and Solar Resource Data for reference
HW 5: Economic dispatch
HW 5 Solution
 Oct 13
Fall Break

Renewables and System Planning

  • Mitigating Net Uncertainty
  • HOMER: System Planning Model
Energy Efficiency & DSM HOMER model HW 6: OPF & Load Modeling, and Wind Cart

Wind Cart Lab: Memo with initial work on final experiment(s) ... if you have been able to use the cart. If not, stil be thinking about it, and looking for a good, windy day!

 Oct 20
Midterm Exam - in library
  • Monday: System Planning
  • Wednesday: Start HOMER HW
  • MIDTERM EXAM: In Library Wed afternoon through Friday evening
Continue with Renewables readings and HOMER user's guide and posted reports as needed Take-Home Part of Midterm Exam: KB Self-assessment
  • Hand in Friday start of class
  •  Oct 27 Knowledge Building; Electric Generation:
    • KB Group discussions - what ideas has the group improved? What knowledge has been built?
    • Hydroelectric modeling
    • DC Generators and 3φ Introduction
    Quantifying Renewables Contribution:

    System Planning Examples

    HW 8: HOMER Data gathering and Initial Report
     Nov 3 Electric Machines
    • Induction Motors 1
    • Induction Motors 2
    • Amatrol Motors Lab Demo

    HW 9: HOMER modeling
     Nov 10 Power Generation and Motors in Action
    • Guest speaker on Cogeneration (Prof. McKahn)
    • Tour of the Smith Cogeneration facility - Meet down at Physical Plant, as close to 10 am as possible!
    • In class Lab Sign-up for Motors Lab
    Continue with Amatrol motor lab manuals and lab handout HW 10: Motors and Generators
     Nov 17 System Stability and Control
    • Synchronous generators
    • Power Delivery
    • Motors&Gens Summary; Proposal Analysis
    • Chapter 12, in Moodle
    • Research Proposal examples - email
    HW 11: Motor Lab write-up due -- SEE MOODLE
     Nov 24 In-class KB discussions
    Thanksgiving Break

      No Homework This Week
     Dec 1 Smart Grids, Distributed Generation, MicroGrids
    • microGrids - definition and evolution
    • Smart Grids & Microgrids
    Readings to download
    microGrids (uGridIssueOvw.pdf introduces others)
    Smart Grids

    Knowledge Building time
     Dec 8
      Safety with Electric Power
    Electric Energy: An Introduction, Chapter 9, Safety, pp 218-233 HW 12 Final KB work, demonstrating to me your building of knowledge
    Take Home FINAL EXAM
    Pick up and Drop off to Burton Science Center Office
    48 Hours; Due Thursday close of Burton Office at the latest.



    Course Overview and Topics

    This course introduces students to the field of electric power, including generating technologies (renewable, hydro, nuclear and fossil), electricity transmission and distribution, and more recent developments in smart grids and demand response. Topics include modeling, analysis and simulation of power systems, small design projects, discussions of emerging technologies, with an awareness of policy, environmental and societal aspects of energy use. Work with knowledge building allows students to explore questions around power systems and energy use in greater depth.

    The objective of this course is to introduce students to electric power systems, and to the broader issues of energy policy and complex systems analysis. Through the material presented in this course, students will learn:

    1. The fundamental principles of producing and transmitting electric power,
    2. To analyze complex engineering systems, and to gain familiarity with incorporating technical, policy and societal elements in the analysis framework,
    3. How to simulate electric power systems, in order to understand their behavior and also to make design decisions about the types of generating technologies to use and when to expand the power system to meet demand.
    4. Introduction to optimization: The inherent tradeoffs between the often conflicting objectives of power system design and operation, including cost, reliability, and environmental impacts,
    5. The far reaching effects of electric power and energy conversion on human society,
    6. To evaluate her personal learning process and understanding of the concepts and skills from class.

    ABET Outcomes for EGR 325
    For students' Books of Evidence, the following ABET outcomes can be achieved by every student taking EGR 325. Note that this is a shared responsibility between the course professor and each student. If you do not understand how or when these outcomes are being addressed through the course material, be sure to come to office hours (while there are still many weeks remaining in the semester). If populating your BoEs is left until the end of the semester, it could be too late to achieve all you had planned.

    Course Concept Map
    The concept map will be used throughout the semester to bring together the course topics, and modeling and analysis techniques.

    The syllabus lists the reading for each class period. Students are expected to do the reading before coming to class, in order to be fully prepared to solidify the material in the class period. Note that this does not mean every word of every reading needs to be carefully read. Each student needs to read about and ponder enough of the issues to be able to contribute to class discussion and the class learning.

    Assginments also include participation in Knowledge Building (via Knowledge Forum, online) which allows for out-of-class discussion and learning to occur in a continuous and self-guided manner. Use and assessment of KF will evolve over the course of the semester.

    There will be almost-weekly homework assignments, collective knowledge building work, one midterm exam and a final take home exam.

    Written homework format
    All mathematical homework solutions must be written on standard engineering paper in the standard Picker Engineering homework format. Short essay questions should be typed and printed out. Homework from computer simulation tools should be typed, with graphs from the computer models pasted into a Word (or similar) document, and clearly explained. Students are encouraged to work together to understand the concepts, but each student must hand in her own solutions. All assignments are to be neatly written or typed, and stapled, with your name and date. Note that students are expected to follow the Honor Code for all work in this course. Copying on homework or quizzes/exams, and other violations will be brought to the honor board.

    The purpose of the homework is for you to have the opportunity to practice - practice - practice the skills and concepts from class, and to think about the policy and societal questions beyond class discussions. Since homework is the time to practice, you are not expected to have perfects solutions at all times. You are expected to do your best work for each problem however. In recognition of these goals, each homework problem, as well as participation in Knowledge Forum, will be evaluated with the following 10 point scale as a guide:

    A complete attempt includes identifying what is known, articulating what you are solving, stating any assumptions, properly labeling figures, including units and a reasonable number of significant figures in your answer, and clearly and neatly documenting your progression towards a final result. Homework solutions often will be compiled from the solutions submitted by the class, so it is very important that your solutions can be clearly understood by all!

    Essays and discussion questions will be graded as ✓, ✓- or ✓+

    Class attendance
    Students are required to attend class and participate in class discussions and problem solving exercises. This means that you must be in class and come prepared to participate in the discussions to receive full credit for this portion of the course.

    Grades in this course are designed to represent your achievement of the objectives and student ABET outcomes. The course components that will make up your grade are listed below.

    Homework (separate from KF)
    Class participation
    Knowledge Building work
    Midterm exam
    Final exam

    Late Policy
    All homework assignments are to be submitted at the time specified; late assignments will be penalized at the rate of one point per minute unless you have requested and received and extension at least 24 hours before the deadline. However, each student will have a total of 1 hour (60 minutes) grace time to be used as desired by that student over the course of the semester, such that you can have a semester total of 60 tardy minutes for homework and labs without penalty (note that these minutes cannot be used for in-class reading questions, quizzes or exams).

    Knowledge Forum participation must be on an on-going basis, so that all class participants have plenty of time to see, read and respond to your notes, thoughts and responses. Notes need to be posted well in advance of class time to allow everyone to read and process all the notes. This means, with class starting at 10am, initial postings should be made by dinnner time (6pm) the evening before class so that everyone will have the opportunity to read and respond to each others' notes, and gather thoughts for class.

    Honor Code
    The homework assignments that you submit must be your own work. You are encouraged to discuss the problems and essay questions with your classmates and work on them together, but each student must work out her own answers. It is not okay to copy answers from another student's homework - doing so is a violation of the Honor Code. Note that it is a violation of the honor code to 1) use or copy another student's work, and 2) provide another student with your work. Projects will be done in small groups. Exams must be exclusively each student's own work, following the instructions provided with each exam. Do not hesitate to ask any questions that you may have concerning the honor code!