Anna University Semester 6 Electrical / Electronics engineering syllabus – The syllabus for Electrical and Electronics engineering sixth semester in the bachelors degree course of B.E and B.Tech has five core subjects and one elective that has to be chosen from a group of subjects. Out of these Communication is a common subject shared by other branches also,whereas design of electrical machines is important and a little hard also.
Anna University Semester 6 Electrical / Electronics engineering syllabus
UNIT I ANALOG COMMUNICATION 9
AM – Frequency spectrum – vector representation – power relations – generation of AM – DSB,
DSB/SC, SSB, VSB AM Transmitter & Receiver; FM and PM – frequency spectrum – power relations
: NBFM & WBFM, Generation of FM and DM, Amstrong method & Reactance modulations : FM & PM
UNIT II DIGITAL COMMUNICATION 9
Pulse modulations – concepts of sampling and sampling theormes, PAM, PWM, PPM, PTM,
quantization and coding : DCM, DM, slope overload error. ADM, DPCM, OOK systems – ASK, FSK,
PSK, BSK, QPSK, QAM, MSK, GMSK, applications of Data communication.
UNIT III SOURCE CODES, LINE CODES & ERROR CONTROL (Qualitative only) 9
Primary communication – entropy, properties, BSC, BEC, source coding : Shaum, Fao, Huffman
coding : noiseless coding theorum, BW – SNR trade off codes: NRZ, RZ, AMI, HDBP, ABQ,
MBnBcodes : Efficiency of transmissions, error control codes and applications: convolutions & block
UNIT IV MULTIPLE ACCESS TECHNIQUES 9
SS&MA techniques : FDMA, TDMA, CDMA, SDMA application in wire and wireless communication :
Advantages (merits) :
UNIT V SATELLITE, OPTICAL FIBER – POWERLINE, SCADA 9
Orbits : types of satellites : frequency used link establishment, MA techniques used in satellite
communication, earth station; aperture actuators used in satellite – Intelsat and Insat: fibers – types:
sources, detectors used, digital filters, optical link: power line carrier communications: SCADA
SOLID STATE DRIVES
UNIT I DRIVE CHARACTERISTICS 9
Electric drive – Equations governing motor load dynamics – steady state stability – multi quadrant
Dynamics: acceleration, deceleration, starting & stopping – typical load torque characteristics –
Selection of motor.
UNIT II CONVERTER / CHOPPER FED DC MOTOR DRIVE 9
Steady state analysis of the single and three phase converter fed separately excited DC motor
drive–continuous and discontinuous conduction– Time ratio and current limit control – 4 quadrant
operation of converter / chopper fed drive.
UNIT III INDUCTION MOTOR DRIVES 9
Stator voltage control–energy efficient drive–v/f control–constant airgap flux–field weakening mode
– voltage / current fed inverter – closed loop control.
UNIT IV SYNCHRONOUS MOTOR DRIVES 9
V/f control and self control of synchronous motor: Margin angle control and power factor control –
permanent magnet synchronous motor.
UNIT V DESIGN OF CONTROLLERS FOR DRIVES 9
Transfer function for DC motor / load and converter – closed loop control with Current and speed
feedback–armature voltage control and field weakening mode – Design of controllers; current
controller and speed controller- converter selection and characteristics.
UNIT I INTRODUCTION TO EMBEDDED SYSTEMS 9
Introduction to Embedded Systems – The build process for embedded systems- Structural units in
Embedded processor , selection of processor & memory devices- DMA – Memory management
methods- Timer and Counting devices, Watchdog Timer, Real Time Clock, In circuit emulator, Target
UNIT II EMBEDDED NETWORKING 9
Embedded Networking: Introduction, I/O Device Ports & Buses– Serial Bus communication protocols –
RS232 standard – RS422 – RS485 – CAN Bus -Serial Peripheral Interface (SPI) – Inter Integrated
Circuits (I2C) –need for device drivers.
UNIT III EMBEDDED FIRMWARE DEVELOPMENT ENVIRONMENT 9
Embedded Product Development Life Cycle- objectives, different phases of EDLC, Modelling of
EDLC; issues in Hardware-software Co-design, Data Flow Graph, state machine model, Sequential
Program Model, concurrent Model, object oriented Model.
UNIT IV RTOS BASED EMBEDDED SYSTEM DESIGN 9
Introduction to basic concepts of RTOS- Task, process & threads, interrupt routines in RTOS,
Multiprocessing and Multitasking, Preemptive and non-preemptive scheduling, Task communicationshared
memory, message passing-, Inter process Communication – synchronization between
processes-semaphores, Mailbox, pipes, priority inversion, priority inheritance, comparison of Real
time Operating systems: Vx Works, ?C/OS-II, RT Linux.
UNIT V EMBEDDED SYSTEM APPLICATION DEVELOPMENT 9
Case Study of Washing Machine- Automotive Application- Smart card System Application,.
POWER SYSTEM OPERATION AND CONTROL
UNIT I INTRODUCTION 9
An overview of power system operation and control – system load variation – load characteristics –
load curves and load-duration curve – load factor – diversity factor – Importance of load forecasting
and quadratic and exponential curve fitting techniques of forecasting – plant level and system level
UNIT II REAL POWER – FREQUENCY CONTROL 9
Basics of speed governing mechanism and modeling – speed-load characteristics – load sharing
between two synchronous machines in parallel – control area concept – LFC control of a single-area
system – static and dynamic analysis of uncontrolled and controlled cases – two-area system –
modeling – static analysis of uncontrolled case – tie line with frequency bias control – state variable
model – integration of economic dispatch control with LFC.
UNIT III REACTIVE POWER–VOLTAGE CONTROL 9
Generation and absorption of reactive power – basics of reactive power control – excitation systems –
modeling – static and dynamic analysis – stability compensation – methods of voltage control: tapchanging
transformer, SVC (TCR + TSC) and STATCOM – secondary voltage control.
UNIT IV UNIT COMMITMENT AND ECONOMIC DISPATCH 9
Formulation of economic dispatch problem – I/O cost characterization – incremental cost curve – coordination
equations without and with loss (No derivation of loss coefficients) – solution by direct
method and ?-iteration method – statement of unit commitment problem – priority-list method – forward
UNIT V COMPUTER CONTROL OF POWER SYSTEMS 9
Need for computer control of power systems – concept of energy control centre – functions – system
monitoring – data acquisition and control – system hardware configuration – SCADA and EMS
functions – network topology – state estimation – WLSE – Contingency Analysis – state transition
diagram showing various state transitions and control strategies.
DESIGN OF ELECTRICAL MACHINES
UNIT I INTRODUCTION 9
Major considerations in Electrical Machine Design – Electrical Engineering Materials – Space factor –
Choice of Specific Electrical and Magnetic loadings – Thermal considerations – Heat flow –
Temperature rise and Insulating Materials – Rating of machines – Standard specifications.
UNIT II DC MACHINES 9
Output Equations – Main Dimensions – Choice of Specific Electric and Magnetic Loading – Maganetic
Circuits Calculations – Carter’s Coefficient – Net length of Iron –Real & Apparent flux densities –
Selection of number of poles – Design of Armature – Design of commutator and brushes –
performance prediction using design values.
UNIT III TRANSFORMERS 9
Output Equations – Main Dimensions – kVA output for single and three phase transformers – Window
space factor – Design of core and winding – Overall dimensions – Operating characteristics – No load
current – Temperature rise in Transformers – Design of Tank – Methods of cooling of Transformers.
UNIT IV INDUCTION MOTORS 9
Output equation of Induction motor – Main dimensions – Choice of Average flux density – Length of
air gap- Rules for selecting rotor slots of squirrel cage machines – Design of rotor bars & slots –
Design of end rings – Design of wound rotor – Magnetic leakage calculations – Leakage reactance of
polyphase machines- Magnetizing current – Short circuit current – Operating characteristics- Losses
UNIT V SYNCHRONOUS MACHINES 9
Output equations – choice of Electrical and Magnetic Loading – Design of salient pole machines –
Short circuit ratio – shape of pole face – Armature design – Armature parameters – Estimation of air
gap length – Design of rotor –Design of damper winding – Determination of full load field mmf –
Design of field winding – Design of turbo alternators – Rotor design.