SEMESTER V
Course Code: TEE 501
Course Name: Elements of Power System
LTPC
3104
Unit-I
8hrs
Fundamentals of Power System :
Energy Sources and Supply System-Conventional sources of electrical energy thermal, hydroelectric, diesel and nuclear power plants, renewable energy sources,
Different kinds of supply system and their comparison, choice of transmission
voltage, Single Line Diagram-Single line Diagram of Power system, Brief
description of power system elements: Synchronous machine, transformer,
transmission line, bus bar, circuit breaker and isolator, The per-unit system
Unit-II
9hrs
Transmission Lines: Configurations, types of conductors, resistance of line, skin
effect, Kelvin’s law, Proximity effect, Calculation of inductance and capacitance of
single phase, three phase, single circuit and double circuit transmission lines,
Representation and performance of short, medium and long transmission lines,
ABCD constants, Ferranti effect, Surge impedance loading
Unit-III
7hrs
Corona and Interference: Phenomenon of corona, corona formation, calculation of
potential gradient, corona loss, factors affecting corona, methods of reducing
corona and interference. Electrostatic and electromagnetic interference with
communication lines, Neutral grounding-Necessity of neutral grounding, various
methods of neutral grounding, earthing transformer, grounding practices
Unit-IV
9hrs
Mechanical Design of transmission line: Catenary curve, calculation of sag &
tension, effects of wind and ice loading, sag template, vibration dampers,
Insulated cables: Type of cables and their construction, dielectric stress, grading
of cables, insulation resistance, Capacitance of single phase and three phase
cables, dielectric loss, heating of cables, Overhead line Insulators: Type of
insulators and their applications, potential distribution over a string of insulators,
methods of equalizing the potential, string efficiency
Unit-V
9hrs
EHV AC and HVDC Transmission: Introduction to EHV AC and HVDC
transmission and their comparison, use of bundle conductors, kinds of DC links,
Power Flow in HVDC systems, Reactive VAr requirements of HVDC converters,
Advantages and Disadvantages of DC transmission, Electrical Design of
Transmission Line: Design consideration of EHV transmission lines, choice of
voltage, number of circuits, conductor configuration, insulation design, selection of
ground wires.
Suggestive Readings:
1. W. D. Stevenson, “Element of Power System Analysis”, McGraw Hill,
2. C. L. Wadhwa, “Electrical Power Systems” New age international Ltd. Third
Edition
3. Asfaq Hussain, “'Power System”, CBS Publishers and Distributors,
4. B. R. Gupta, “Power System Analysis and Design” Third Edition, S. Chand &
Co.
5. M. V. Deshpande, “Electrical Power System Design” Tata Mc Graw Hill.
6. M. V. Deshpandey, “Elements of Power System Design”, Tata McGraw Hill,
7. Soni, Gupta & Bhatnagar, “A Course in Electrical Power”, Dhanpat Rai &
Sons
8. S. L. Uppal, “Electric Power”, Khanna Publishers
Course Code: TEE 502
Course Name: Electro-Mechanical Energy Conversion - II
LTPC
3104
Unit-I
10 hrs
Alternators: Construction, principle of operation, type and selection, armature
reaction, voltage regulation, predetermination of voltage regulation, EMF method,
synchronous reactance and short circuit ratio, MMF method, Potier method,
phasor diagrams, two reaction theory, modified phasor diagram - analysis by two
reaction theory, sudden short circuit, current waveforms, transient and sub
transient reactance, slip test, DC excitation - static excitation - brush less
excitation and self-excitation, measurement of losses.
Unit-II
12 hrs
Synchronous Machine: Power angle characteristics of cylindrical rotor and salient
pole machines, reactance power, active and reactive power control, load sharing
upon parallel operation, effect of armature reactance, automatic synchronizing,
effect of change in fuel supply and excitation, alternator connected to infinite bus,
governor characteristics, synchronizing power and torque, phasor diagram for two
identical generators in parallel, locus of generated voltage for constant real power
and variable excitation, automatic voltage regulators, synchronous motor, principle
of operation, equivalent circuit, effect of load changes on synchronous motor,
mechanical load diagram, armature current as function of power developed and
excitation, V curves, inverted V curves, transition of a machine from generator
mode to motor mode, phasor diagram, torque and power relations, minimum
excitation for given power, hunting, periodicity of hunting, suppression, different
starting methods.
Unit-III
10 hrs
Three phase Induction Machines: Three phase induction motors, construction,
principle of operation, rotor MMF and production of torque, slip and frequency of
rotor current, phasor diagram, equivalent circuit, mechanical power developed,
maximum torque, torque-slip characteristics, losses and power flow, single
phasing, no-load and blocked rotor tests, circle diagram, effect of deep bar and
double cage rotors, effects of air gap flux harmonics, cogging and crawling,
Induction Generators-line excited and self-excited induction generators
Unit-IV
4 hrs
Single phase Induction Motor and AC Commutator Motors:Double revolving
field theory, Equivalent circuit, No load and blocked rotor tests, repulsion motor,
Universal motor, single phase a.c. series compensated motor, stepper motors,
Reluctance motor, Applications of AC motors
Unit-V
6 hrs
Starting and Speed Control of Induction Motors:Starting methods of three phase
induction motors, direct on line starting, auto transformer starting, star delta
starting, rotor resistance starting, starters and contactors, basic methods for speed
control of three phase induction motors, voltage control, frequency control, rotor
resistance control, pole changing, static frequency conversion and slip power
recovery scheme, starting methods of single phase induction motors.
Suggestive Readings:
1. D.P.Kothari & I.J.Nagrath, “Electric Machines”, Tata Mc Graw Hill
2. Say M. G, Performance & Design of AC Machines, Pitman, ELBS.3rd edition,
1983
3. Langsdorf A.S., Theory of AC Machinery, McGraw Hill., 2nd edition, 2002.
4. Fitzerald,A.E.,Kingsley and S.D.Umans“Electric Machinery”, MC Graw Hill.
5. Toro V.D, Electrical Machines & Power Systems, Prentice Hall, 2nd edition,
2003.
6. P.S.Bimbhra, “Electrical Machinery”, Khanna Publisher
7. P.S. Bimbhra, “ Generalized Theory of Electrical Machines”, Khanna
Publishers
Course Code: TEC 503
Course Name: Control Systems
LTPC
3104
Unit-I
System and it’s Modeling
9hrs
Classification of systems: Linear/Nonlinear, Time variant/invariant, Continuous
time/discrete time. Transfer function, Open loop – closed loop system and
sensitivity, Block diagrams representation and its reduction, signal flow graph,
Masons gain formula and its application to block diagrams, Review of Laplace
transform, System modeling: Mechanical- Translational & Rotational, Electricalseries RLC, Electromechanical- DC servo motor.
Unit-II
Time Response and Steady State Error Analysis
11hrs
First order and second order system: Impulse, Unit step & Ramp input response
and analysis, steady state error. Static error coefficients: KP, KV, Ka, Performance
indices and computation of ISE, Control actions: P, PI, PD & PID controllers and
analysis.
Unit-III
Frequency response and stability analysis
10hrs
Routh Hurwitz criterion, Nyquist plot: Stability, Gain and Phase margin, Gain
Phase plot, M-N circles. Bode plot: Stability, Gain and Phase margin, Correlation
between time and frequency response. Root locus plot for stability analysis.
Unit-IV
Design and compensation techniques
6hrs
Design considerations, Electronic lag-lead compensator, PD control as lead
compensator, PI control as lag compensator, Lag-Lead compensation based on root
locus approach.
Unit-V
State Variable Analysis
6hrs
State space representation of Continuous Time systems (LTI), State equations,
Transfer function from State Variable Representation, Solutions of the state
equations, Concepts of Controllability and Observability.
Suggested Readings:
1. Ogata Katsuhiko, “Modern Control Engineering”, PHI, th edition.
2. Nagrath I. J. & Gopal M., “Control System Engineering”, New Age International
Publishers.
3. Kuo B. C. , “Automatic Control Systems”, PHI.
4. Nise S. Norman, “Control System Engineering” John Wiley & Sons, Singapore.