Electric Machines

Contents -->>> DC Machine <<<-- Lab guid Fundamental dc machine Machine construction and commutator action Steady-state performance and ideal characteristics of dc machine Speed control of dc motors Lab sheet experiment Tutorial -->>> Poly-phase Induction Machine <<<-- Machine construction and concept of operation Induced voltage and torque development Equivalent circuit and torque Steady-state performance and characteristics Torque-speed characteristics, speed control and tests Linear iduction motor (squirrel and double gage machines) starting of iduction motor Lab sheet experiment 1 Lab sheet experiment 2 Tutorial -->>> Synchronous Machines <<<-- Machine construction and excitation voltage Design and operation Voltage regulation and phasor diagram (generator and motor modes) Power and torque characterisics and tests Salient pole machine Synchronous bus connection Variable voltage-varaible frequency operation Lab sheet experiment Tutorial -->>> Single phase Induction Motor <<<-- Machine types (auxiliary, capacitor) Characteristic performance and equivalent circuit Open circuit and blocked rotor tests Powers, torque-speed and efficiency

Small Motors

Contents -->>> Permanent Magnet Motors <<<-- Fundamentals, materials, demagnetization and Brushless dc Motors Controller for PM, brushless machines Winding design, hall elements and position detection Three phase bipolar driven motor Tutorial -->>> Synchronous Reluctance Motor <<<-- Principle of operation and rotating field Linear and hybrid linear reluctance motor -->>> Stepper Motors <<<-- Types, Hybrid and Electro-hydraulic motors Characteristics, excitation and drive Modeling, damping and control Flux-guided stepper motors Slotless machines Tutorial -->>>Switched Reluctance Motors <<<-- Current and voltage fed modes(inverter fed, operation and torque production) Nonlinearity and energy flow (power converter circuits) Unaligned permeance in single and multiple tooth per pole

Machine Theory

Contents -->>> Electromechanical Energy conversion <<<-- Electromagnetic theory in Rotating machines 2-coil, 3-phase, 2-axis theorems Tutorial -->>> Dynamic Model and Transient Performance <<<-- Machine families Induction machine Synchronous machine Variable reluctance and dc machines Tutorial -->>> Small Signal Voltage-fed machines <<<-- Power frequency relation and torque coefficients in induction motor Energy characteristics in synchronous generator Lab experiment