ANNA UNIVERSITY CHENNAI: CHENNAI – 600 025B.E DEGREE PROGRAMME (3 - 8 SEMESTERS)
ELECTRICAL AND ELECTRONICS ENGINEERING(Offered in Colleges affiliated to Anna University)
CURRICULUM AND SYLLABUS – REGULATIONS – 2004
SEMESTER VII
(Applicable to the students admitted from the Academic year 2006 – 2007 onwards)
THEORY | L | T | P | M | ||
1. | EE 1401 | Power System Operation and Control | 3 | 1 | 0 | 100 |
2. | EE 1402 | High Voltage Engineering | 3 | 0 | 0 | 100 |
3. | EE 1403 | Design of Electrical Apparatus | 3 | 1 | 0 | 100 |
4. | EE 1001 | Special Electrical Machines | 3 | 0 | 0 | 100 |
5. |
| Elective – I | 3 | 0 | 0 | 100 |
6. |
| Elective – II | 3 | 0 | 0 | 100 |
EE 1401 POWER SYSTEM OPERATION AND CONTROL 3 1 0 100
AIM
To become familiar with the preparatory work necessary for meeting the next day’s operation and the various control actions to be implemented on the system to meet the minute-to-minute variation of system load.
OBJECTIVES
i. To get an overview of system operation and control.
ii. To understand & model power-frequency dynamics and to design power-frequency controller.
iii. To understand & model reactive power-voltage interaction and different methods of control for maintaining voltage profile against varying system load.
1. INTRODUCTION 9
System load variation: System load characteristics, load curves - daily, weekly and
annual, load-duration curve, load factor, diversity factor. Reserve requirements: Installed reserves, spinning reserves, cold reserves, hot reserves. Overview of system operation: Load forecasting, unit commitment, load dispatching. Overview of system control: Governor control, LFC, EDC, AVR, system voltage control, security control.
2. REAL POWER - FREQUENCY CONTROL 8
Fundamentals of speed governing mechanism and modeling: Speed-load characteristics – Load sharing between two synchronous machines in parallel; concept of control area, LFC control of a single-area system: Static and dynamic analysis of uncontrolled and controlled cases, Economic Dispatch Control. Multi-area systems: Two-area system modeling; static analysis, uncontrolled case; tie line with frequency bias control of two-area system derivation, state variable model.
3. REACTIVE POWER–VOLTAGE CONTROL 9
Typical excitation system, modeling, static and dynamic analysis, stability compensation; generation and absorption of reactive power: Relation between voltage, power and reactive power at a node; method of voltage control: Injection of reactive power. Tap-changing transformer, numerical problems - System level control using generator voltage magnitude setting, tap setting of OLTC transformer and MVAR injection of switched capacitors to maintain acceptable voltage profile and to minimize transmission loss.
4. UNIT COMMITMENT AND ECONOMIC DISPATCH 9
Statement of Unit Commitment (UC) problem; constraints in UC: spinning reserve, thermal unit constraints, hydro constraints, fuel constraints and other constraints; UC solution methods: Priority-list methods, forward dynamic programming approach, numerical problems only in priority-list method using full-load average production cost.
Incremental cost curve, co-ordination equations without loss and with loss, solution by direct method and λ-iteration method. (No derivation of loss coefficients.) Base point and participation factors. Economic dispatch controller added to LFC control.
5. COMPUTER CONTROL OF POWER SYSTEMS 10
Energy control centre: Functions – Monitoring, data acquisition and control. System hardware configuration – SCADA and EMS functions: Network topology determination, state estimation, security analysis and control. Various operating states: Normal, alert, emergency, inextremis and restorative. State transition diagram showing various state transitions and control strategies.
L = 45 T = 15 Total = 60
TEXT BOOKS
1. Olle. I. Elgerd, ‘Electric Energy Systems Theory – An Introduction’, Tata McGraw Hill Publishing Company Ltd, New Delhi, Second Edition, 2003.
2. Allen.J.Wood and Bruce F.Wollenberg, ‘Power Generation, Operation and Control’, John Wiley & Sons, Inc., 2003.
3. P. Kundur, ‘Power System Stability & Control’, McGraw Hill Publications, USA, 1994.
REFERENCE BOOKS
1. D.P. Kothari and I.J. Nagrath, ‘Modern Power System Analysis’, Third Edition, Tata McGraw Hill Publishing Company Limited, New Delhi, 2003.
2. L.L. Grigsby, ‘The Electric Power Engineering, Hand Book’, CRC Press & IEEE Press, 2001.
EE 1402 HIGH VOLTAGE ENGINEERING 3 0 0 100
AIM
To expose the students to various types of over voltage transients in power system and its effect on power system.
- Generation of over voltages in laboratory
- Testing of power apparatus and system.
OBJECTIVES
i. To understand the various types of over voltages in power system and protection methods.
i. Generation of over voltages in laboratories.
ii. Measurement of over voltages.
iii. Nature of Breakdown mechanism in solid, liquid and gaseous dielectrics – discussion on commercial insulants.
iv. Testing of power apparatus and insulation coordination
1. OVER VOLTAGES IN ELECTRICAL POWER SYSTEMS 6
Causes of over voltages and its effect on power system – Lightning, switching surges and
temporary over voltages - protection against over voltages.
2. ELECTRICAL BREAKDOWN IN GASES, SOLIDS AND LIQUIDS 10
Gaseous breakdown in uniform and non-uniform fields – corona discharges – Vacuum
breakdown - conduction and breakdown in pure and commercial liquids – breakdown
mechanisms in solid and composite dielectrics.
3. GENERATION OF HIGH VOLTAGES AND HIGH CURRENTS 10
Generation of High DC, AC, impulse voltages and currents. Tripping and control of
impulse generators.
4. MEASUREMENT OF HIGH VOLTAGES AND HIGH CURRENTS 10
Measurement of High voltages and High currents – digital techniques in high voltage
measurement.
5. HIGH VOLTAGE TESTING & INSULATION COORDINATION 9
High voltage testing of electrical power apparatus – power frequency, impulse voltage and DC testing – International and Indian standards – Insulation Coordination.
L = 45 Total = 45
TEXT BOOK
1. M.S. Naidu and V. Kamaraju, ‘High Voltage Engineering’, Tata McGraw Hill, 3rd Edition, 2004.
REFERENCE BOOKS
1. E. Kuffel and W.S. Zaengl, ‘High Voltage Engineering Fundamentals’, Pergamon press, Oxford, London, 1986.
2. E. Kuffel and M. Abdullah, ‘High Voltage Engineering’, Pergamon press, Oxford, 1970.
EE 1403 DESIGN OF ELECTRICAL APPARATUS 3 1 0 100
AIM
To expose the students to the concept of design of various types of electrical machines.
OBJECTIVES
To provide sound knowledge about constructional details and design of various electrical machines.
i. To study mmf calculation and thermal rating of various types of electrical machines.
ii. To design armature and field systems for D.C. machines.
iii. To design core, yoke, windings and cooling systems of transformers.
iv. To design stator and rotor of induction machines.
v. To design stator and rotor of synchronous machines and study their thermal behaviour.
1. MAGNETIC CIRCUITS AND COOLING OF ELECTICAL MACHINES 9
Concept of magnetic circuit – MMF calculation for various types of electrical machines – real and apparent flux density of rotating machines – leakage reactance calculation for transformers, induction and synchronous machine - thermal rating: continuous, short time and intermittent short time rating of electrical machines-direct and indirect cooling methods – cooling of turbo alternators.
2. D.C. MACHINES 9
Constructional details – output equation – main dimensions - choice of specific loadings – choice of number of poles – armature design – design of field poles and field coil – design of commutator and brushes – losses and efficiency calculations.
3. TRANSFORMERS 9
Constructional details of core and shell type transformers – output rating of single phase and three phase transformers – optimum design of transformers – design of core, yoke zand windings for core and shell type transformers – equivalent circuit parameter from designed data – losses and efficiency calculations – design of tank and cooling tubes of transformers.
4. THREE PHASE INDUCTION MOTORS 9
Constructional details of squirrel cage and slip ring motors – output equation – main dimensions – choice of specific loadings – design of stator – design of squirrel cage and slip ring rotor – equivalent circuit parameters from designed data – losses and efficiency calculations.
5. SYNCHRONOUS MACHINES 9
Constructional details of cylindrical pole and salient pole alternators – output equation – choice of specific loadings – main dimensions – short circuit ratio – design of stator and rotor of cylindrical pole and salient pole machines - design of field coil - performance calculation from designed data - introduction to computer aided design.
L = 45 T = 15 Total = 60
TEXT BOOKS
1. A.K. Sawhney, ‘A Course in Electrical Machine Design’, Dhanpat Rai and Sons, New Delhi, 1984.
2. S.K. Sen, ‘Principles of Electrical Machine Design with Computer Programmes’, Oxford and IBH Publishing Co.Pvt Ltd., New Delhi, 1987.
REFERENCE BOOKS
1. R.K. Agarwal, ‘Principles of Electrical Machine Design’, S.K.Kataria and Sons, Delhi, 2002.
2. V.N. Mittle and A. Mittle, ‘Design of Electrical Machines’, Standard Publications and
Distributors, Delhi, 2002.
EE 1001 SPECIAL ELECTRICAL MACHINES 3 0 0 100
AIM
To expose the students to the construction, principle of operation and performance of special electrical machines as an extension to the study of basic electrical machines.
OBJECTIVES
To impart knowledge on
i. Construction, principle of operation and performance of synchronous reluctance motors.
ii. Construction, principle of operation and performance of stepping motors.
iii. Construction, principle of operation and performance of switched reluctance motors.
iv. Construction, principle of operation and performance of permanent magnet brushless D.C. motors.
v. Construction, principle of operation and performance of permanent magnet synchronous motors.
1. SYNCHRONOUS RELUCTANCE MOTORS 9
Constructional features – Types – Axial and radial air gap motors – Operating principle – Reluctance – Phasor diagram - Characteristics – Vernier motor.
2. STEPPING MOTORS 9
Constructional features – Principle of operation – Variable reluctance motor – Hybrid motor – Single and multi stack configurations – Theory of torque predictions – Linear and non-linear analysis – Characteristics – Drive circuits.
3. SWITCHED RELUCTANCE MOTORS 9
Constructional features – Principle of operation – Torque prediction – Power controllers – Non-linear analysis – Microprocessor based control - Characteristics – Computer control.
4. PERMANENT MAGNET BRUSHLESS D.C. MOTORS 9
Principle of operation – Types – Magnetic circuit analysis – EMF and torque equations – Power controllers – Motor characteristics and control.
5. PERMANENT MAGNET SYNCHRONOUS MOTORS 9
Principle of operation – EMF and torque equations – Reactance – Phasor diagram – Power controllers - Converter - Volt-ampere requirements – Torque speed characteristics - Microprocessor based control.
L = 45 Total = 45
TEXT BOOKS
1. T.J.E. Miller, ‘Brushless Permanent Magnet and Reluctance Motor Drives’, Clarendon Press, Oxford, 1989.
2. P.P. Aearnley, ‘Stepping Motors – A Guide to Motor Theory and Practice’, Peter Perengrinus, London, 1982.
REFERENCE BOOKS
1. T. Kenjo, ‘Stepping Motors and Their Microprocessor Controls’, Clarendon Press London, 1984.
2. T. Kenjo and S. Nagamori, ‘Permanent Magnet and Brushless DC Motors’, Clarendon Press, London, 1988.
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