Cleveland State University
Department of Electrical Engineering and Computer Science
EEC 361: Electromechanical Energy Conversion
Catalog Description:
EEC 361 Electromechanical Energy Conversion (3-0-3)
Pre-requisites: EEC 311and MTH 283.
Ampere’s and Faraday’s laws applied to electromechanical energy
conversion devices. Induced torque and induced voltage in both motors
and generators. Analysis of the sinusoidal steady-state operation and
performance of three-phase motors and generators. Control under different
steady-state loading conditions.
Textbook:
Electric Machinery Fundamentals, by Stephen Chapman, McGraw-Hill,
Fifth Edition, 2012, ISBN 978-0-07-352954-7, and hard copies of
instructor’s PowerPoint slides
Coordinator:
Dr. Ana Stankovic, Professor
Department of Electrical Engineering and Computer Science
Course Objectives:
To develop in the students the ability to apply the basic laws of electromagnetism to the analysis of the steady-state performance of simple
electro-mechanical energy conversion devices and three-phase
synchronous and induction motors and generators. To expose the students
to the basics of design through the interaction between the ferromagnetic
and electric circuits portions of a device.
Student Learning Outcomes:
Upon completion of this course, students should be able to:
1. Ability to determine relative polarity (dot or H and X) markings on
magnetically linked coils and use of volts-per-turn concepts
2. Ability to connect single-phase transformers HV and LV windings
in Wye or Delta and determine line-to-line voltages and line currents
3. Ability to determine polarity of induced voltage, direction of
current, direction of force, direction of induced torque, and direction of
speed on a conductor and on a rotating coil under the presence of a
magnetic field
4. Understand the concept of the rotating magnetic field and thus the
ability to translate three-phase coil and phase currents to direction and
speed of field rotation
5. Ability to use synchronous motor and generator speed, frequency,
and number of poles relationship
6. Ability to sketch phasor diagrams and V-curves to analyze
performance of synchronous generator performance (under- or overexcited, and leading or lagging power factor)
7. Ability to perform preliminary design of simple device given
specific ratings
8. Ability to develop iterative computer code to approach design
criterion
Course fulfills the following Electrical Engineering Program Objectives and Outcomes:
Objectives (from (1) to (6)):
(1) Practice electrical engineering in power electronics and power
systems
(2) Define and diagnose problems, and provide and implement electrical
engineering solutions in industry, business, and government
(3) Observe engineering ethics in the practice of electrical engineering
(4) Communicate effectively with technically diverse audiences
Outcomes (from (a) to (k)):
(a) Apply knowledge of mathematics, science, and engineering to
general electrical engineering and, in particular, to power electronics
and power systems
(c) Ability to design a system, component, or process
(e) Identify, formulate, and solve electrical engineering problems
(f) Understanding of professional and ethical responsibility
(i) Recognition of the need for, and an ability to engage in life-long
learning
(k) Use the techniques, skills, and modern engineering tools
necessary for engineering practice
Contribution of Course to Meeting the Professional Component:
Math & Basic Science: 1 credits
Engineering Topics: 2 credits
General Education: 0 credits
Prerequisites by Topic:
1.
2.
3.
4.
Single and Three-Phase, Sinusoidal Steady-State Circuit Analysis
Active, Reactive, Apparent, and Complex Powers, and Power Factor
Vector (Cross) and Scalar (Dot) Products of Vectors
Closed-Path, Surface and Volume Integration
1.
2.
3.
4.
Introduction to Electromechanical Energy Conversion with Examples
Application of Ampere’s Law to Magnetic Circuits
Inductance and Energy Storage in Magnetic Circuits with Air Gaps
Application of Faraday’s Law to Single-Phase and Three-Phase
Transformers
Simple Energy Converter Operating as DC Motor and as a DC
Generator
Induced Voltage and Induced Torque in a Simple AC Converte r
Tesla’s Invention: Rotating Magnetic Field in Three-Phase Converters
Three-Phase Synchronous Generators with Electric Loads of Different
Power Factors, and Analysis of its Operation with V-Curves
Three-Phase Synchronous Motor with Different Mechanical and their
Effect on Power Factor; Under- Excited and Overexcited Operation
Topics:
5.
6.
7.
8.
9.
4
2
2
6
4
2
3
6
4
10. Three-Phase, Squirrel-Cage and Wound-Rotor Induction Motors and
Generators
11. Commutator-Based DC Machines, Types of Armature Windings,
Compensating Windings and Interpoles
12. Separately, Shunt, Series and Compound Excited DC Motors and
Generators
13. Exams
Total
Student Learning Assessments:
1. Announced short weekly quizzes based on the material studied the
previous week.
2. Two term exams
3. Two design projects
4. Final exam (comprehensive)
Computer Usage:
Programming the iterative steps in the Design Project
Laboratory Projects:
None
Estimated ABET Category Content: Engineering Topics 3 credits or 100%
4
2
2
4
45