Course Outline (W2020)

ELE806: Alternative Energy Systems

Instructor(s)David Xu [Coordinator]
Office: ENG320
Phone: (416) 979-5000 x 6075
Email: dxu@ryerson.ca
Office Hours: Monday 2-5PM
Calendar DescriptionThe topics include introduction to alternative energy systems, power converters for renewable energies, wind energy system fundamentals, wind generators, doubly fed induction generator based wind turbines, synchronous generator based wind generation systems, control schemes, transient and steady-state analysis, solar energy systems, photovoltaic arrays, and maximum power point tracking schemes. Other alternative energy systems will also be introduced.
PrerequisitesELE 747




Compulsory Text(s):
  1. Power Conversion and Control of Wind Energy Systems, B. Wu, Y. Lang, N. Zargari, and S. Kouro, Wiley-IEEE Press, 480 pages, 2011, ISBN 978-0- 470-59365- 3
  2. ELE806 Course Notes: Available on D2L
  3. ELE806 Laboratory Manuals: Available on D2L
Reference Text(s):
Learning Objectives (Indicators)  

At the end of this course, the successful student will be able to:

  1. Use specialized core knowledge of power electronics, electric machines, and control theory to understand and design 1) a wind energy conversion system using squirrel induction generator, doubly-fed induction generator, or synchronous generator, and 2) a photovoltaic (PV) energy conversion system with maximum power point tracking (MPPT) control. (1d)
  2. Generate solutions for the design of PWM switching schemes, grid-side power factor compensation, PI compensator, maximum power point tracking (MPPT), and control schemes for various wind and solar energy systems with a give set of design requirements. (4b)
  3. Use of MATLAB/SIMULINK tool extensively to Investigate and solve complex problems in wind and solar energy systems, including analysis and modeling of fixed and variable-speed wind energy systems and solar energy systems with partial shading problems. (5a)
  4. (9a)

NOTE:Numbers in parentheses refer to the graduate attributes required by the Canadian Engineering Accreditation Board (CEAB).

Course Organization

3.0 hours of lecture per week for 13 weeks
1.0 hours of lab/tutorial per week for 12 weeks

Teaching AssistantsTBA
Course Evaluation
Theory: Midterm Exam 25 %
Theory: Final Exam 45 %
Laboratory: 6 Labs 5% Each 30 %
TOTAL:100 %

Note: In order for a student to pass a course with "Theory and Laboratory" components, in addition to earning a minimum overall course mark of 50%, the student must pass the Laboratory and Theory portions separately by achieving a minimum of 50% in the combined Laboratory components and 50% in the combined Theory components. Please refer to the "Course Evaluation" section for details on the Theory and Laboratory components.

ExaminationsMidterm exam is scheduled for the #8 week (3 Hrs duration), closed book with a formula sheet (covers Weeks 1-6 of lecture and laboratory material)
 Final Exam, during exam period, 3 hours, closed book with a formula sheet (covers Weeks 7-13 of lecture and all laboratory material).
Other Evaluation InformationNOTE: To achieve a passing grade, student must pass both the theory and laboratory components.
 Lab experiments are to be done in partners and the write-ups are handed to your TA during the scheduled lab
 time as indicated on the course content schedule.
Other InformationNone

Course Content



Chapters /

Topic, description



State-of- the-art wind energy systems wind  turbine technology wind energy conversion fixed-speed and variable-speed wind energy systems grid codes power factor compensation.
 (Chapters 1 textbook)



Wind turbine components turbine power characteristics turbine modeling passive and active stall controls pitch control tip speed ratio maximum power point tracking schemes.
 (Chapters 2 textbook)



Reference frame transformation induction generators (IG) IG dynamic and steady state models synchronous generators (SG) SG dynamic and steady state models transient and steady state analysis of wind generators.
 (Chapters 3 textbook)



AC voltage controllers multi-channel interleaved boost converters voltage source converters control of grid-tied converters reactive power control.
 (Chapter 4 textbook)



System configurations operating principle of fixed-speed IG WECS soft starter reactive power compensation.
 (Chapter 6 textbook)



System configuration direct field oriented control (FOC) rotor flux identification system dynamic analysis steady state calculations.
 (Chapter 7 textbook)



System configuration zero d-axis current (ZDC) control maximum torque per ampere (MTPA) control unit power factor (UPF) control transient and steady state analysis.
 (Chapter 9 textbook)






System configurations super- and sub-synchronous modes of operation stator voltage oriented control (SVOC)
 (Chapter 8 textbook)



DFIG dynamic and steady state models system dynamic and steady state analysis.
 (Chapter 8 textbook)



Photovoltaic (PV) arrays PV cell modeling partial shading effect standalone and grid-tied PV systems (Course Notes posted on Blackboard)



PV power converter systems maximum power point tracking (MPPT) schemes. (Course Notes posted on Blackboard)



Introduction to tidal and wave energy systems.

Laboratory/Tutorials/Activity Schedule





Lab 1

Lab 1 - Modeling and Simulation of Fixed-Speed Wind Turbines
   - Implement the fixed-speed wind turbine model for induction generator based WECS
   - Study the power and torque curves for wind turbine and
   - Investigate the pitch angle control system.


Lab 2

Lab 2 - Modeling and Simulation of Induction Generators
   - Implement the squirrel-cage induction generator (SCIG) in arbitrary reference frame
   - Investigate the dynamic response of SCIG with direct grid connection and
   - Compare the response of SCIG model with Sim-Power-Systems model.


Lab 3

Lab 3 - Decoupled Voltage Oriented Control of Grid-Tied Inverters
   - Understand the principle of VOC with a decoupling controller for grid-tied inverter
   - Design the sinusoidal pulse width modulation scheme for grid-tied inverter and
   - Investigate the active and reactive power control with the grid-tied inverter.


Lab 4

Lab 4 - Fixed-Speed Induction Generator based WECS
   - Implement the fixed-speed squirrel-cage induction generator based WECS
   - Investigate the dynamic response of SCIG WECS with direct grid connection and soft start and
   - Design and implement reactive power compensation scheme for fixed-speed WECS.


Lab 5

Lab 5 - Zero d-axis Current (ZDC) Control of PMSG WECS
   - Design the ZDC control for variable-speed direct-drive non-salient pole PMSG WECS
   - Design the sinusoidal pulse width modulation scheme for generator-side converter and
   - Investigate study the dynamic performance of PMSG WECS during start-up.


Lab 6

Lab 6 – Investigation of Photovoltaic Panel Characteristics
   - Modeling of PV arrays
   - Understand the principle of PV array operation and
   - Understand the temperature and irradiance effect on PV array output

Policies & Important Information:

  1. Students are required to obtain and maintain a Ryerson e-mail account for timely communications between the instructor and the students;
  2. Any changes in the course outline, test dates, marking or evaluation will be discussed in class prior to being implemented;
  3. Assignments, projects, reports and other deadline-bound course assessment components handed in past the due date will receive a mark of ZERO, unless otherwise stated. Marking information will be made available at the time when such course assessment components are announced.
  4. Refer to our Departmental FAQ page for information on common questions and issues at the following link: https://www.ee.ryerson.ca/guides/Student.Academic.FAQ.html.

Missed Classes and/or Evaluations

When possible, students are required to inform their instructors of any situation which arises during the semester which may have an adverse effect upon their academic performance, and must request any consideration and accommodation according to the relevant policies as far in advance as possible. Failure to do so may jeopardize any academic appeals.

  1. Health certificates - If a student misses the deadline for submitting an assignment, or the date of an exam or other evaluation component for health reasons, they should notify their instructor as soon as possible, and submit a Ryerson Student Health Certificate AND an Academic Consideration Request form within 3 working days of the missed date. Both documents are available at https://www.ryerson.ca/senate/forms/medical.pdf.. If you are a full-time or part-time degree student, then you submit your forms to your own program department or school;
  2. Religious, Aboriginal and Spiritual observance - If a student needs accommodation because of religious, Aboriginal or spiritual observance, they must submit a Request for Accommodation of Student Religious, Aboriginal and Spiritual Observance AND an Academic Consideration Request form within the first 2 weeks of the class or, for a final examination, within 2 weeks of the posting of the examination schedule. If the requested absence occurs within the first 2 weeks of classes, or the dates are not known well in advance as they are linked to other conditions, these forms should be submitted with as much lead time as possible in advance of the absence. Both documents are available at www.ryerson.ca/senate/forms/relobservforminstr.pdf. If you are a full-time or part-time degree student, then you submit the forms to your own program department or school;
  3. Academic Accommodation Support - Before the first graded work is due, students registered with the Academic Accommodation Support office (AAS - www.ryerson.ca/studentlearningsupport/academic-accommodation-support) should provide their instructors with an Academic Accommodation letter that describes their academic accommodation plan.

Academic Integrity

Ryerson's Policy 60 (the Academic Integrity policy) applies to all students at the University. Forms of academic misconduct include plagiarism, cheating, supplying false information to the University, and other acts. The most common form of academic misconduct is plagiarism - a serious academic offence, with potentially severe penalties and other consequences. It is expected, therefore, that all examinations and work submitted for evaluation and course credit will be the product of each student's individual effort (or an authorized group of students). Submitting the same work for credit to more than one course, without instructor approval, can also be considered a form of plagiarism.

Suspicions of academic misconduct may be referred to the Academic Integrity Office (AIO). Students who are found to have committed academic misconduct will have a Disciplinary Notation (DN) placed on their academic record (not on their transcript) and will normally be assigned one or more of the following penalties:

  1. A grade reduction for the work, ranging up to an including a zero on the work (minimum penalty for graduate work is a zero on the work);
  2. A grade reduction in the course greater than a zero on the work. (Note that this penalty can only be applied to course components worth 10% or less, and any additional penalty cannot exceed 10% of the final course grade. Students must be given prior notice that such a penalty will be assigned (e.g. in the course outline or on the assignment handout);
  3. An F in the course;
  4. More serious penalties up to and including expulsion from the University.

The unauthorized use of intellectual property of others, including your professor, for distribution, sale, or profit is expressly prohibited, in accordance with Policy 60 (Sections 2.8 and 2.10). Intellectual property includes, but is not limited to:

  1. Slides
  2. Lecture notes
  3. Presentation materials used in and outside of class
  4. Lab manuals
  5. Course packs
  6. Exams

For more detailed information on these issues, please refer to the Academic Integrity policy(https://www.ryerson.ca/senate/policies/pol60.pdf) and to the Academic Integrity Office website (https://www.ryerson.ca/academicintegrity/).

Important Resources Available at Ryerson

  1. The Library (https://library.ryerson.ca/) provides research workshops and individual assistance. Inquire at the Reference Desk on the second floor of the library, or go to library.ryerson.ca/guides/workshops
  2. Student Learning Support(https://www.ryerson.ca/studentlearningsupport) offers group-based and individual help with writing, math, study skills and transition support, and other issues.