Overview

Description

CALENDAR DESCRIPTION:

Principles, operation, and analysis of three phase systems, magnetic circuits, transformers and electromechanical energy conversion systems and their applications.

COURSE DETAILS:

Subjects and Topics 

Three-phase systems,

• Introduction to 3-phase AC systems and definition of phase sequence
• Y-Y, Y∆, ∆Y, ∆∆ circuit configurations and calculation of phase and line values
• Analysis of balanced and unbalanced 3-phase circuits
• 3-phase power calculations

Magnetic circuits

• Magnetic circuits principles and introduction to magnetic field, electromagnetic force, permeability, reluctance, magnetic flux, and flux density
• Application of Ohm’s and Ampere’s Circuital laws in the analysis of series, parallel, and series-parallel magnetic circuits
• Magnetization curve, cause and effect of saturation
• Hysteresis and Eddy current losses
• Sinusoidal excitation and definition of static and dynamic B-H loops
• Effects of voltage and frequency variation on a magnetic circuit
• Permanent magnets and PM circuit design

Transformers

• Ideal transformers, polarity determination, reflected impedance, and power calculations
• Electric model of a practical transformer and parameter determination through transformer tests
• Transformer applications: voltage regulation, isolation, instrumentation, and power transfer
• Three-phase transformers (Bank type and common core)

Energy conversion process,

• Field energy calculation
• Mechanical force generation in linear electromagnetic systems

DC machines

• DC machine construction and operating principles.
• Characteristics of shunt and series DC machines and their application as motors/ generators
• DC motors' torque-speed controlling mechanisms

AC Induction machines

• Induction machine construction and operating principles
• Motoring, generating, and plugging modes of operation
• Induction machine electric equivalent circuit and machine tests for parameter determination
• Induction machine performance characteristics and classes of squirrel cage motors
• Induction motor starting and torque-speed controlling mechanisms

COURSE-LEVEL EDUCATIONAL GOALS:

Intended Learning Outcomes	CEAB Graduate Attributes*
Three-Phase Circuits
1. Analyze balanced and unbalanced three-phase circuits in Y and Delta configurations	GA #1 D/A GA #2 D/A
Magnetism and Magnetic Circuits
2. Analyze series-parallel magnetic circuits, explain the effects of core saturation, hysteresis, and Eddy currents, and calculate their associated losses	GA #1 D/A GA #2 D/A
Transformers
3. Analyze single- and three-phase transformers and determine their wiring configuration to achieve specific voltage, current, phase shift, and power delivery characteristics	GA #1 D GA #2 D GA #4 D
Electric Machines
4. Explain the electromechanical energy conversion process, calculate the field energy, and the magnitude of the mechanical force that can be generated in an electromagnetic system	GA #1 I/D
5. Describe the construction and operation principles of shunt, compound, and series DC machines, and analyze their performance under constant and variable load condition	GA #1 D/A GA #2 D/A
6. Describe the construction and operation principles of squirrel cage and wound rotor Asynchronous AC machines, and analyze their performance under constant and variable load conditions	GA #1 D/A GA #2 D/A GA #3 D
Use of Engineering Tools
7. Verify analysis results of electric systems involving transformers, electric machines, and AC loads using simulation software	GA #2 D/A GA #3 D/A GA #4 D GA #5 A
8. In a laboratory setting, safely set up, operate, test, and analyze three-phase circuits, transformer systems, and AC/DC machines	GA #1 A GA #2 D/A GA #3 D/A GA #4 D/A GA #5 A

(*) Engineering Accreditation

The Canadian Engineering Accreditation Board (CEAB) requires students to be competent in twelve main areas by graduation, known as Graduate Attributes (GA). The GAs are provided and evaluated at three levels: Introduced (I), Developed (D), and Applied (A). The SEE course learning outcomes are mapped to the GAs to ensure students are educated and graduate with these attributes. The relevant GAs and their associated levels for this course are indicated after each list item in the Intended Learning Outcomes section above. Below is a list of CEAB GAs:

1. A knowledge base for engineering: Demonstrated competence in university-level mathematics, natural sciences, engineering fundamentals, and specialized engineering knowledge appropriate to the program.
2. Problem analysis: An ability to use appropriate knowledge and skills to identify, formulate, analyze, and solve complex engineering problems to reach substantiated conclusions.
3. Investigation: An ability to conduct investigations of complex problems by methods that include appropriate experiments, analysis and interpretation of data, and synthesis of information to reach valid conclusions.
4. Design: An ability to design solutions for complex, open-ended engineering problems and to design systems, components or processes that meet specified needs with appropriate attention to health and safety risks, applicable standards, and economic, environmental, cultural and societal considerations.
5. Use of engineering tools: An ability to create, select, apply, adapt, and extend appropriate techniques, resources, and modern engineering tools to a range of engineering activities, from simple to complex, with an understanding of the associated limitations.
6. Individual and teamwork: An ability to work effectively as a member and leader in teams, preferably in a multidisciplinary setting.
7. Communication skills: An ability to communicate complex engineering concepts within the profession and with society at large. Such ability includes reading, writing, speaking and listening, and the ability to comprehend and write effective reports and design documentation, and to give and effectively respond to clear instructions.
8. Professionalism: An understanding of the roles and responsibilities of the professional engineer in society, especially the primary role of protection of the public and the public interest.
9. Impact of engineering on society and the environment: An ability to analyze social and environmental aspects of engineering activities. Such ability includes an understanding of the interactions that engineering has with the economic, social, health, safety, legal, and cultural aspects of society, the uncertainties in the prediction of such interactions, and the concepts of sustainable design and development and environmental stewardship.
10. Ethics and equity: An ability to apply professional ethics, accountability, and equity.
11. Economics and project management: An ability to appropriately incorporate economics and business practices, including project, risk, and change management into the practice of engineering and to understand their limitations.
12. Life-long learning: An ability to identify and to address their own educational needs in a changing world in ways sufficient to maintain their competence and to allow them to contribute to the advancement of knowledge.

Grading

Materials

REQUIRED READING:

REQUIRED READING NOTES: