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 spherical coordinates.

2.The Static Electric Field

Coulomb’s law, Electric field strength, Field due t o 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 differential form (Maxwell’s first equation in electrostatics), Applications of the Gauss’s law. Elect rostatic potential difference and potential, potential and potential difference expressed as a line integral potential field of a point charge, potential field 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 surface 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 magnetic 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 fiel d). The Lorentz force 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 and 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 motion 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,

Some examples of transmission lines.

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 circuit breakers.

4.Protective relays:

Operating 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 Phenomena 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, Construction 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 Insulation 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 transmission. 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- transfo rm, 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; t ransfer matrix; state- space representation of discrete- time systems. Solution of linear time- invariant and discrete- 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 systems; 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; cost function or performance index; quadratic performance index; linear quadratic state feedback regulator problem; a brief introduction to model reference systems; adaptive control systems.

EEE 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 communication 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 10 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, Stability 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 Amplifiers, 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

EEE602

Electronic Instrumentation

Theory: 100 marks

Sessional: 50 marks

Lab: 50 marks

Time: 3 hrs

1.Definition of instrumentation

2.Characteristics 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. Measurement 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

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

6.Modern electronic test equipment

Oscilloscope, 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 systems, 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 a nd 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, Instrumentation, 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

Transmitter, channel and receiver; baseband and passband signals and their representations;

2.Concept of modulation and demodulation

3.Continuous wave (CW) modulation

Amplitude modulation (AM) - double sideband (DSB), double sideband suppressed carrier (DSBSC), single sideband suppressed carrier (SSBSC) and vestigial sideband (VSB) modulation;

4.Angle modulation

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

5.Pulse Modulation

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

6.Line coding

Differential pulse code modulation; delta modulation; adaptive delta modulation.

7.Noise in CW 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.Basic digital modulation schemes

Phase 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

Frequency division 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 & Sons, 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, Oxford University Press, 1998.

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

EE645L

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.

EEE601L

Microwave Lab

·VSWR measurement

·Measurements of dielectric constants using Microwave test bench

·Basic S11 measurement on antennas

·Design of waveguide 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

EEE603L

Communication Lab

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

·Frequency modulation and demodulation (using VCO & PLL);

·Automatic gain control (AGC);

·Pulse width modulation (PWM);

·Pulse code modulation (PCM); pseudo-random (PN) sequence generation;

·Binary phase shift keying (BPSK);

·Binary frequency shift keying (BFSK)

Text/References:

·W. Tomasi, Electronic Communications Systems – Fund amentals through advanced, 4/e, Pearson, 2003.

·J. G. Proakis and M. Salehi: Communication Systems Engineering; Pearson, 2006

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