Unit 1 PRINCIPLES OF ELECTROMAGNETIC ENERGY

4 lecture hours

• CONVERSION General expression of stored magnetic energy
• co-energy and force/torque
• example using single and doubly excited system

Unit 2 BASIC CONCEPTS OF ROTATING MACHINES

6 lecture hours

• Calculation of air gap MMF and per phase machine inductance using physical machine data
• Voltage and torque equation of dc machine
• three phase symmetrical induction machine and salient pole synchronous machines in phase variable form

Unit 3 INTRODUCTION TO REFERENCE FRAME THEORY

10 lecture hours

• Static and rotating reference frames
• transformation relationships
• examples using static symmetrical three phase R, R-L
• R-L-M and R-L- C circuits
• application of reference frame theory to three phase symmetrical induction and synchronous machines
• dynamic direct and quadrature axis mode in arbitrarily rotating reference frames
• voltage and torque equations
• derivation of steady state phasor relationship from dynamic model
• generalized theory of rotating electrical machine and Kron's primitive machine

Unit 4 ANALYSIS OF INDUCTION MACHINES

10 lecture hours

• Induction machine equations in phase quantities assisted by space vectors-Sinusoidal distributed winding
• stator single-phase magnetizing and mutual inductance
• per-phase magnetizing inductance
• equivalent winding in a squirrel-cage rotor and rotor inductances
• review of space vectors
• flux-linkage and voltage equations in terms of space vectors
• Dynamic analysis in terms of dq windings-stator and rotor dq windings and inductance-flux linkage and voltage equations in dq coordinates
• electromagnetic torque
• dq equivalent circuits
• computer simulation

Unit 5 SPECIAL MACHINES

• Permanent magnet synchronous machine: Surface permanent magnet 10 15 (square and sinusoidal back emf type) and interior permanent magnet machines
• Construction and operating principle
• dynamic modeling and self controlled operation
• Analysis of Switched Reluctance Motors