EE30008: Advance Electrical Machines

EE30008
Course name	Advance Electrical Machines
Offered by	Electrical Engineering
Credits	3
L-T-P	3-0-0
Previous Year Grade Distribution
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Semester	Autumn

Syllabus

Syllabus mentioned in ERP

pre requisite: EE21002Transformer: Three winding transformer; Unbalanced operation of three phase transformer; Switching-in transients and mechanical forces.Electromechanical energy conversion: Field energy- energy and co-energy; Torque/force in a singly excited and multiple excited electromechanical systems and applications, AC windings.Circuit analysis of electrical machines: Development of circuit models from dc machine and synchronous machine. Impedance matrix; instantaneous and phasor variables; real-coil and pseudostationary coil, expressions for torque and power, transformation of variables with power invariance, examples; general two-axis machine. Extension of twoaxis models to different machines.D.C machines: Flux and mmf waves; Commutation and armature reaction; Dynamic equations, block diagrams and transfer functions.Induction machines: Deep-bar and double-cage construction; Machine equations in stationary reference frame (d-q axis model), dynamic and steady state performance, behavior under asymmetrical supply voltages.Synchronous machines: Winding inductances; Machine equations in rotor reference frame (d-q axis model); Sudden three phase short circuit and transient circuit model; Steady state operation; Synchronous machine dynamics.Reluctance Machines: Synchronous reluctance, stepping motors and switched reluctance machines, principles of operation and models for operating characteristics. Steady-state and dynamic performance.PM machines: Permanent magnet material, Basic analysis of magnetic circuit with permanent magnets, Steady-state and dynamic performance of PM synchronous machines and Brushless DC machines.