Electrical Machines II

SPRING '11

Instructor

Levent Ovacik

Objective

Course Code

ELK 332E

To provide an undergraduate level of knowledge on synchronous and DC machines used for generation of electric energy and driving industrial loads by means of basic magnetic field theory and energy conversion principles.

CRN

21347
Credit

3-0-0

Course Type

MT

Contents

Language

English

 Introduction to electric machinery principles: basic notions related to rotational motion, induced voltages and induced forces. AC machinery fundamentals, rotating field theory, induced torque, AC machine windings and Fourier series analysis of airgap magnetic field, construction of synchronous machines, equivalent circuit, phasor diagram of round-rotor and salient-pole synchronous machines, synchronization conditions, single and parallel generator operation, starting synchronous motors, armature reaction and active and reactive loading curves, study of generator transients. DC machinery fundamentals, construction of DC machinery, armature windings, commutation, armature reaction, shunt, compunded and series exitation fields, fundamental equations, torque-speed characteristics, equivalent circuits, generator and motor operation, stating and speed control of DC motors.

Prerequisite

N/A

Semester

6th Semester
Class Hours Weds. 09:30-12:30 EEB 5203

Announcements
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    • Grading

    Grading polciy and rules

    		RESTRICTED ACCESS ("username" and "password" necessary)

    Attendance: To be able to take the final exam, 70% of attandance is required.
  • If no attendance is taken during the class hours, students will be considered to be PRESENT that week.
  • Being "absent" more than 4 (four) weeks of the semester will result in a grade of "VF" (This means that the student will not be allowed to take the final exam.)
    Grading: Your Grade will be determined from the weighted averages of 2 (two) Homework Assignments, 2 (two) Midterm Exams and the Final Exam. The weights are:
  • Homework 20%
  • Mid-Term Exam 30%
  • Final Exam 50%
    Rules:
  • All exams will be CLOSED book.
  • Every student must exhibit his/her own work in exams. Copying any part of work from other students' work is subject to Institute's rules for "Academic Dishonesty," and an action will be taken against the violators.
    To see your grades click here

    • Suggestions

    Some tips to do better on this course

  • There is no prerequisite for this course. However, students are expected to use basic circuit theory, basic electromagnetics, three-phase AC systems, arithmetic with complex numbers, phasor notation, complex power, power factor, rms, basic mechanics, work, power, rotational motion, etc.
  • Course material should be studied before coming to the class.
  • There will be problem solving and review sessions every two or three weeks. Problems related to the theory of the course will be solrved in the class hours by the teaching assistant (TA). The students are advised to be attended to the review sessions to gain practice on problem solving.
  • Office hours are arranged for the students to meet with the course instructor or the TA.

    • Documents

    Class notes and some course related supplimentary material


    to open the document files in this WEB site.
  • Supplimentary material supporting the textbook of this class can be found at: http://www.mhhe.com/engcs/electrical/chapman/

    • Previous Year Exam Questions

    You can find exam and homework questions asked in previous years

    		Spring 2002 Spring 2003Spring 2004 Midterm Spring 2004 Final Spring 2005 Midterm Spring 2005 Final

    References

    Textbook and the list of bibliography related to this course

    		Textbook:
    Chapman, S.J., Electric Machinery Fundamentals, 3rd Ed., MacGraw-Hill, 1999.
    References:
    [1] Fitzgerald, A.E., Kingsley, C., Umans, S.D., Electric Machinery, 5th Ed. MacGraw-Hill, 1990.
    [2] Sen, P.C., Principles of Electric Machines and Power Electronics, John-Wiley & Sons, 1989.
    [3] Güzelbeyoğlu, N., Elektrik Makinaları I-II, İ.T.Ü Elektrik-Elektronik Fak. Ofset Baskı Atölyesi, 1998.
    [4] Güzelbeyoğlu, N., Elektrik Makinaları I-II: Teori-Çözümlü Problemler, Birsen Yayınevi, 2005.
    [5] Englemann, R.H., Middendorf, W.H., Handbook of Electric Motors, Marcel Dekker, 1995.
    [6] Sarıoğlu, K., Elektrik Makinalarının Temelleri (Senkron Mainalar), Birsen Yayınevi, Istanbul, 2003.
    Please send your suggestions to: ovacik@elk.itu.edu.tr
    http://www.elk.itu.edu.tr/~ovacik     		Number of visitors since January 20, 2004:
    © 2002 Levent Ovacik,