Courses

Electric Drives

Offered: 

2019

UNIT

DETAILS

HOURS

I

 

 Introduction to electric drives – Block diagram – advantages of electric drives – Dynamics of motor load system, fundamental equations, and types of load – classification of load torque, four quadrant operation of drives. Steady state stability. Introduction to closed loop control of drives.

7

II

 

Induction Machines

Offered: 

2017

UNIT

DETAILS

HOURS

I

Three phase induction motor: Construction-squirrel cage and slip ring motors principle of operation-slip and frequency of rotor current-mechanical power - developed torque- phasor diagram-torque-slip curve-pull out torque-losses and efficiency.

Modelling and analysis of Electrical Machines

Offered: 

2016

PRE – REQUISITES:
1. Basics of Electric & Magnetic Circuits
2. Knowledge of construction & working of AC & DC Machines
COURSE OBJECTIVES:
To provide an in depth knowledge about modelling and analysis of AC & DC machines using generalized machine theory.
SYLLABUS
Fundamental Concepts of Generalized Machine Theory, Modeling and analysis of DC machines, Modeling and analysis of Synchronous Machines, Modeling and analysis of Induction Machines
COURSE OUTCOME:
The students will be able to

Power Electronics

Offered: 

2016

Unit I-Static switches

Unit II-Phase controlled rectifiers

Unit III-Choppers and cyclo converters

Unit IV-Inverters

Unit V-Switch Mode Power Supply Systems

DC Machines and Transformers

Offered: 

2014

I

DC Machines: Constructional features – principle of operation of DC generator – armature winding - types - e.m.f. equation - armature reaction – effects of armature reaction - demagnetizing and cross magnetizing ampere- turns - compensating winding - commutation – methods to improve commutation – e.m.f. in coil undergoing commutation – reactance e.m.f.- effect of brush shift- inter poles.

II

Electric Drives and Control

Offered: 

2014

Module 1
DC motors: Methods of Speed control – single phase rectifiers with motor loadsingle
phase fully controlled bridge rectifier drives – half controlled bridge
rectifier drives – freewheeling with regeneration – speed torque characteristics –
power in load and source circuits
Module 2
3 Phase fully controlled bridge rectifier drives – free wheeling, freewheeling with
regeneration – Dual converter fed DC motor drives – chopper fed drives – single,
two and four quadrant chopper drives
Module 3
(Qualitative treatment only)

Special Electrical Machines and Drives

Offered: 

2013

Stepping Motors

Constructional features, principle of operation, modes of excitation, single phase stepping motors, torque production in variable Reluctance (VR) stepping motor, Dynamic characteristics, Drive systems and circuit for open loop control, Closed loop control of stepping motor, microprocessor based controller

Switched Reluctance Motors

Constructional features, principle of operation. Torque equation, Power controllers, Characteristics and control. Microprocessor based controller. Sensor less control.

Basic Electrical Engineering

Offered: 

2011

Module 1
S I unit of Current, Voltage, Power and Energy, Ohm’s Law – Temperature
Coefficient of Resistance – Kirchhoff’s Laws – Solution of Series-Parallel D.C.
circuits – star Delta Transformation – Magnetic Circuits – Flux-Flux density – m
m f – Magnetising Force – Reluctance –Permeability –Comparison of Electric and
Magnetic Circuits-Force experienced by a current carrying conductor in Magnetic
Field – Electromagnetic Induction – Farady’s Laws – Lenz’s Law – Statically
Induced e m f – dynamically induced e.m.f. – Self and mutual Induction –

Electrical Machines II

Offered: 

2010

Module 1
Synchronous Machines: Types – selection of alternators – constructional
features of cylindrical and salient pole machines.
Armature windings: different types – phase grouping – single and double layer,
integral and fractional slot winding – emf equation – distribution factor – coil span
factor – tooth harmonic ripples – skewed slots – harmonics, elimination of
harmonics – revolving magnetic field.
Module 2
Armature Reaction – Synchronous reactance – circuit model of synchronous
machine.