EE641 Electromagnetic Field

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16 Νοε 2013 (πριν από 3 χρόνια και 9 μήνες)

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EE641 Electromagnetic Field

Theory: 100

Sessional: 50

Time: 3 hours

1.

Vector Analysis

Review of dot and cross products, gradient, divergence and curl. Divergence and Stoke’s

Theorem,
Cartesian, Cylindrical and Spherical Co
-
ordinate system. Transformation between co
-
ordinates, General
curvilinear co ordinates. Value of gradient, divergence and curl in general co
-

ordinates and to obtain their
values in cylindrical ans spherica
l coordinates.

2.

The Static Electric Field

Coulomb’s law, Electric field strength, Field due to pont charges, a line charge and a sheet of charge, Field
due to continuous volume charge, Electric flux density, Gauss’s law in integral form, Gauss’s law in
diff
erential form (Maxwell’s first equation in electrostatics), Applications of the Gauss’s law. Electrostatic
potential difference and potential, potential and potential difference expressed as a line integral potential
field of a point charge, potential fiel
d of a system of charges, conservative property, potential gradient, the
dipole, energy density in the electrostatic field.

3.

The static magnetic field

The Biot
-
Savart’s law(the magnetic field of filamentary currents), the magnetic field of distributed surfa
ce
and volume currents, Ampere’s Circuital law in integral and differential form(Maxwell’s curl equation for
steady magnetic field),The scalar and vector magnetic potentials, Maxwell’s divergence equation for B,
steadymagnetic field laws, forces in magneti
c field , force on a current element, force betweentwo current
elements, force and torque in the current loop.

4.

The Electromagnetic field

Faraday’s law in integral and differential form(Maxwell’s first curl equation for electromagnetic field). The
Lorentz f
orce equation.The concept of displacement current and modified Ampere’s law(Maxwell’s 2
nd
curl
equation for electromagnetic field), The continuity equation, power flow in an electromagnetic field,
Poynting Vector. Sinusoidally time varying fields, Maxwell’
s equations for sinusoidally time varying fields,
power and energy considerations for sinusoidally time varying fields. The retarded potentials, Polarization of
vector fields, review of Maxwell’s equations.

5.

Materials and fields(review type only)

Current an
d current density, the continuity equation , conductor in fields.Dielectric in fields: Polarization,
flux density, electric susceptibility, relative permittivity, Boundary conditions in perfect dielectrics,
magnetic materials, magnetization, permeability,
boundary conditions.

6.

Applied Electromagnetics I

Poisson’s and Laplace equations, solution of one dimensional cases, general solution of

Laplace equation,
Method of images.

7.

Applied Electromagnetics II

Electromagnetic waves, The Helm Holtz equation, wave mot
ion and free space, wavemotion in perfect lossy
dielectrics, propagation
in good conductors, skin effect,
Reflection of uniform plane waves. Radiation of
electromagnetic waves.

8.

Transmission line equations and parameters,

S
ome examples of transmission line
s.

Text books and references:

1. Hayt: Engg. Electromagnetics.

2. Corson and Lofrain: Introduction to Electromagnetic fields and waves.


EE644


Electric Power System II



Theory: 100 marks


Sessional: 50 marks


Time: 3 hrs



1.

Static Substation:

Classification.
Interconnection of substations, Necessity. Function & arrangement of substation equipment.
Layout diagram
-

single line diagram with different bus
-
bar arrangements. Current limiting reactors: Types
and construction, substation grounding.

2.

Neutral grounding:

Effectively grounded system. Under grounded system. Arching ground. Methods of neutral grounding.
Resonant grounding (Peterson coil). Earthing transformer. Generator neutral breaker. Grounding practice as
per Indian electricity rules. Equipment grounding.

3.

Circuit breakers:

Fuses: Function: Important terms & classification. HRC fuses: Characteristics & advantages. Time delay
fuse.

Switchgears: Functions, principles of circuit breaking. DC & AC circuit breaking. Arc voltage & current
waveforms. Restriking &

recovery voltages, Current zero pause. Current chopping, capacitive current
breaking. AC circuit breaker ratings. Arc in oil, arc irruption theories and processes. Bulk oil CB & MOCB,
air circuit breaker, air

blast CBs. Vacuum & SF
6

CBs. Testing of circu
it breakers.

4.

Protective relays:

O
perating principles; Terminology & functional characteristics of Protective relays. Universal relay torque
equation. Over current relays. Differential relays. Feeder, generator &

transformer protection. Distance
relays. Reverse, Translay relays, carrier current protection, comparators. Static relays: operating principles,
advantages, types. Example with block/ power and overvoltage circuit diagrams and operation.

5.

Over
-
Voltage Phe
nomena in Power Systems:

Lightning phenomena, Switching surges, Travelling Waves, Shape and Specification of Travelling waves,
Attenuation and distortion of traveling waves, attenuation due to corona, behaviour of traveling waves at a
line transition, Con
struction of Bewely lattice diagram.

6.

Over voltage protection & Insulation co
-
ordination:

Surge protection. Different types of lightening arresters & surge absorbers. Ground & counterpoise wires.
Location & rating of lightening arresters. Introduction to I
nsulation co
-
ordination. Volt
-
time curve.
Important terms. BIL & factors affecting it. co
-
ordination of system equipment.

7.

HVDC transmission and Systems of Electric Power Transmission:

Limitations of HVAC transmission. Advantages & limitations of HVDC tran
smission. Kinds of DC links.
Ground return. Equipment for HVDC transmission. Economic distance. Application of HVDC systems.

Review of Existing Systems, Advantages and Limitations of using high transmission voltages, Comparison
of overhead and underground
systems, Economic voltage of transmission, Economic size of conductors,
Kelvin’s law

REFERENCES:



Electrical Power

S.L.Uppal.



Electrical Power System
---
C.L.Wadha.



Electrical Power System’s design

M.V. Despande.



Switchgear principles

P.H.J.Crane.



Switchgear
and Protection

S.S. Rao



Switchgear and Protection
--

M.V. Despande.




EE645


Control System II


Theory: 100 marks


Sessional: 50 marks


Lab: 50 marks


Time: 3 hrs

1.

Compensation techniques:

Preliminary design specifications in time and frequency domains, gain
compensation
; load compensation,
lag compensation, leg
-

load compensation.

2.

Describing function analysis of non linear control systems:

Introduction to nonlinear systems. Describing functions of common non linearities; nonlinear control
systems
, describing

function analysis of nonlinear control systems.

3.

Phase
-

Plane Analysis:

Introduction, methods of constructing phase
-

plane trajectories, time information and solutions from phase
-

plane trajectories, singular points, phase
-

plane analysis of linear and
nonlinear control systems.

4.

Discrete time systems:

Introduction to discrete


time systems; Z
-

transform, inverse Z
-

transformation; solving difference
equation

by the Z
-
transform method; pulse
-

transfer function; stability analysis in the Z
-

plane.

5.

State



Space Analysis of control systems:

Concepts of space, state variables and state models; state


space representation of linear systems; transfer
matrix; state
-

space
representation

of discrete
-

time systems. Solution of linear time
-

invariant and discre
te
-

time state equations.

6.

Stability Analysis by Liapunov’s second method:

Definition of stability in the sense of Liapunov; the second method of Liapunov; Stability analysis of linear
systems; estimating the transient response behaviour of dynamic system
s; stability analysis of nonlinear
systems.

7.

Design of Feedback Control systems:

Concept of controllability and observality; state feedback and output feedback; a brief idea of pole
placement by state feedback and output feedback; optimal control law; c
ost function or performance index;
quadratic performance index; linear quadratic state feedback regulator problem; a brief introduction to
model reference systems; adaptive control systems.



E
EE 601



Microwave
Circuit
Design


Theory: 100


Sessional:
50


Lab:

50


Time: 3 hours

1.

Microwave
Applications

10 marks

Necessity of Microwave Engineering (Inadequacy of conventional electrical theory at Microwave
frequencies), radar, microwave links, microwave communication, relationship of modern wireless
communicat
ion with microwaves, microwave components at a modern cellular base station

2.

Transmission Lines

10

marks

Review of transmission line theory. Co
-
axial cable. MIC lines. Standing waves. VSWR, and reflection
coefficient. Smith chart. Stub matching calculation.

3.

Waveguides

10 marks

Rectangular and circular waveguides, Final

expression for TE and TM modes (derivation not required),

Dominant mode. Field Patterns. Cut
-
off frequencies. Wave impedance. Power transmission. Waveguide
resonators.

4.

Network Representation

1
0 marks

Scattering matrix parameters.

5.

Components 10 marks (Design to be given as assignments)

Microstrip based design of
Directional couplers, power splitters, E
-
. H
-

and magic Tees
,

phase shifters
.

Attenuators

6.

Microwave Amplifier

Design 20 marks

Matching

of load impedance to source, Stab
i
lity and Gain Circles, Power Matching,
Operating and
Available power Gain Circles, DC Bias Networks

7.

Microwave Circuit Design

10 marks

Introduction to MIC, MMIC, GaAs technologies

8.

Microwave Sources

10 marks

Reflex
Klystron, IMPATT diode, Avalanche diode, Gunn diode

9.

Microwave Measurements

10 marks

Basics of Network Analyzer, Microwave test bench
, Antenna Test Range

Text Books/references:



Kennedy

and
, Davis, Electronic Communication,



Gonzales, Microwave Transistor Am
plifiers
, Analysis and Design (ref: Microwave transistors)



K. C. Gupta
-

Microwaves. John Wiley and Sons
(ref: Scattering Parameters)



S. Y. Liao

Microwave Devices and Circuits, Prentice Hall of India.



R. E. Collin
-

Foundation for Microwave Engineering,
McGraw
-
Hill


EEE60
2



Electronic Instrumentation


Theory: 100 marks


Sessional: 50 marks


Lab: 50 marks


Time: 3 hrs


1.

Definition

of instrumentation


2.

C
harac
teristics of measuring devices

Static characteristics of measuring devices
;

Error analysis, standards and calibration. Dynamic
characteristics of instrumentation systems.

3.

Electromechanical indicating instruments

AC/DC

current and voltage meters, ohmmeter; loading effect. Measurement of power and energy;
Instrument transformers. M
easurement of resistance, inductance, capacitance. ac/dc bridges.

4.

Measurement of non
-
electrical quantities:

Transducers

classification; measurement of displacement, strain, pressure, flow, temperature, force, level
and humidity.

5.

Signal conditioning

Inst
rumentation amplifier, isolation amplifier, and other special purpose amplifiers. Electromagnetic
compatibility; shielding and grounding. Signal recovery, data transmission and telemetry. Data acquisition
and conversion.

6.

Mo
dern electronic test equipment

O
scilloscope, DMM, frequency counter, wave/ network/

harmonic

distortion/


spectrum


analyzers, logic
probe and logic analyzer. Data acquisition system; PC based instrumentation. Programmable logic
controller: ladder diagram. Computer controlled test system
s, serial and parallel interfaces, Field buses.
Smart sensors.

Texts:

1.

A. D. Helfrick and W. D. Cooper, Modern Electronic Instrumentation and Measurement
Techniques, Pearson Education, 2008.

2.

M. M. S. Anand
, Electronic Instruments and Instrumentation Technology, PHI, 2006.

References:

1.

R. P. Areny and T. G. Webster, Sensors and Signal Conditioning, Wiley
-
Interscience, 2000.

2.

E. O. Deobelin, Measurement Systems


Application and Design, Tata McGraw
-
Hill, 2004
.

3.

C. F. Coombs, Electronic Instruments Handbook, McGraw
-
Hill, 2000.

4.

R. A. Witte, Electronic Test Instruments, Pearson Education, 2002.

5.

B. M. Oliver and J. M. Cage, Electronic Measurements and Instrumentation, McGraw
-
Hill, 1975.

6.

B. E. Jones, Instrumenta
tion, measurement, and Feedback, Tata McGraw
-
Hill, 2000.

7.

B. G. Liptak, Instrument Engineers’ Handbook: Process Measurement and Analysis, CRC, 2003.



EEE603


Principles of Communication


Theory: 100 marks


Sessional: 50 marks


Lab: 50 marks


Time: 3 hrs


1.

Basic

blocks in a communication system

T
ransmitter, channel and receiver; baseband and passband signals and their representations;

2.

C
oncept
of modulation and demodulation

3.

Continuous wave (CW) modulation

A
mplitude modulation (AM)
-

double sideband (DSB), double
sideband suppressed carrier (DSBSC), single
sideband suppressed carrier (SSBSC) and vesti
gial sideband (VSB) modulation;

4.

A
ngle modulation

P
hase modulation (PM) & frequency modulation (FM); narrow and wideband FM.

5.

Pulse Modulation

S
ampling process; pulse
amplitude modulation (PAM); pulse width modulation (PWM); pulse position
modulation (PPM) ; pulse code modulation (PCM);

6.

Line

coding

D
ifferential pulse code modulation; delta modulation; adaptive delta modulation.

7.

Noise in C
W and pulse modulation systems

Receiver model; signal to noise ratio (SNR); noise figure; noise temperature; noise in DSB
-
SC, SSB, AM &
FM receivers; pre
-
emphasis and de
-
emphasis, noise consideration in PAM and PCM systems.

8.

Ba
sic digital modulation schemes

P
hase shift keying (PSK), amplitude shift keying (ASK), frequency shift keying (FSK) and Quadrature
amplitude modulation (QAM); coherent demodulation and detection; probability of error in PSK, ASK, FSK
& QAM schemes.

9.

Multiplexing schemes

F
requency

divisio
n multiplexing; time division multiplexing

Texts
:




J. G. Proakis and M. Salehi, Communication system engineering, 2/e, Pearson Education Asia,
2002.



R. E. Ziemer, W. H. Tranter, Principles of Communications: Systems, Modulation, and Noise, 5/e,
John Wiley
&
Sons
, 2001.


References



Simon Haykin, Communication Systems, 4/e, John Wiley & Son
s, 2001.



K. Sam Shanmugam, Digital and Analog Communication Systems, John Wiley and Sons, 1979.



B. Carlson, Communication Systems,3/e, McGraw Hill, 1986.



P. Lathi, Modern

Analog and Digital Communication systems, 3/e, Oxfor
d University Press, 1998.



H. Taub and D. L. Schilling, Principles of Communication Systems, 2/e, McGraw Hill, 1986.


EE645
L


Control System
-
II
Lab



Programmable logic controller.



Modeling of physical systems, open
-
loop and closed
-
loop control of systems,



Design of classical controllers,



Closed loop control of servo systems and regulatory systems,



State
-
feedback based design of modern controllers.



EE
E
601L


Microwave Lab



VSWR
measurement



Measurements of dielectric constants using Microwave test bench



Basic S
11

measurement on antennas



Design of wa
veguide cavity using mode chart



Design of waveguide for X
-
band.


EEE602L


Electronic Instrumentation



Development of circuits for signal conditioning, signal recovery, telemetry; PC based
instrumentation;



Computer controlled test systems;



Experiments using modern electronic test equipment,



Use of various types of transducers and their interface


EEE60
3L


Communication Lab



Amplitude modulation and demodulation (AM with carrier & DSBSC AM);



F
requency modulation and demodulation (using VCO & PLL);



A
utomatic gain control (AGC);



P
ulse width modulation (PWM);



P
ulse code modulation (PCM); pseudo
-
random (PN) s
equence generation;



B
inary phase shift keying (BPSK);



B
inary frequency shift keying (BFSK)


Text/
References
:




W. Tomasi, Electronic Communications Systems


Fundamentals through advanced, 4/e, Pearson,
2003.



J. G. Proakis and M. Salehi: Communication Sys
tems Engineering; Pearson, 2006



H. Taub and D. L. Schilling: Principles of Communication Systems; Tata McGraw
-
Hill, 2008.