Course Title and Code
Electrical Machines Analysis and Modeling (EE5019)
Programme
M.Tech
Year of Study
1
Semester
1
Course Credit
3-0-0-3 (Lecture-Tutorial-Practical-Total Credits)
Course Category
PMT
Prerequisite
Electrical Machines UG level
Consent of Teacher
Required for B.Tech students
Course Content
| S/N | Topic | Lecture (hours) |
|---|---|---|
| 1 | Basic concepts: Basics of magnetic circuits - flux, mmf, reluctance - self, leakage, magnetizing and mutual inductances, Singly excited electromechanical system with linear and nonlinear magnetics, energy and co-energy concepts. Inductances of distributed windings - salient pole, cylindrical rotor, doubly excited rotational system with two coils on stator and two on rotor - electrical and mechanical equations. Reference frame theory - stationary reference frame, alpha-beta, synchronous reference frame, arbitrary speed reference frame. | 12 |
| 2 | Analysis of DC machines: Analysis of dc machines from the generalized machine - electrical and mechanical equations, torque production, Modelling of DC machines and control system design of a separately excited DC machine. | 8 |
| 3 | Analysis of AC asynchronous machines: Analysis of induction machine - synchronous reference frame - with currents as variables - with rotor flux as variables - basis for vector control, modelling of induction machines. Rotor, stator and air gap flux oriented control. | 9 |
| 4 | Analysis of AC synchronous machines: Analysis of the alternator - synchronous reference frame - derivation of salient and cylindrical rotor machine phasor diagrams - three phase short circuit of alternator and various time constants. | 9 |
| 5 | Introduction to Permanent Magnet and Variable Reluctance Machines: BLDC machines, Switched reluctance machines, PMSM. | 4 |
Learning Objectives
- Learn basic modelling concepts of singly and doubly excited magnetic systems.
- Learn reference frame theory.
- Analyse and model various electrical machines with a common theoretical reference frame.
Learning Outcomes
- Analyze the fundamental principles of electrical machines and reference frame concepts.
- Mathematically model and simulate various types of electrical machines.
- Analyze the dynamics of various electrical machines.
Teaching Methodology
Classroom lectures
Assessment Methods
Assignments, Simulation assignments, test / written examination
Text Books
- Fitzgerald and Kingsley, "Electric Machinery", McGraw-Hill; Seventh edition, ISBN-10: 9389949661, ISBN-13: 978-9389949667.
- N. N. Hancock, "Matrix Analysis of Electric Machinery", Elsevier, ISBN: 9781483137292.
References
- O'Simmons and Kelly, "Introduction to Generalized Machine Theory", McGraw-Hill(1968), ISBN-10: 0070940509, ISBN-13: 9780070940505.
- P. C Krauss, Wasyncsuk and Sudholf, "Analysis of Electrical Machines and Drive Systems", John Wiley, 2nd edition, ISBN-13: 978-8126525126, ISBN-10: 9788126525126.